Best Functional Medicine in Los Angeles, New York, and Chicago: 2026 Guide

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Quick Answer: The best functional medicine practitioners in Los Angeles, New York, and Chicago combine IFM certification, advanced diagnostic testing, and personalized root-cause protocols. Top-rated clinics include IHS Medical Group and Dr. Shiva Lalezar in LA, Parsley Health and Eleven Eleven Wellness Center in NYC, and the Chicago Center for Functional Medicine and Northwestern Integrative Medicine in Chicago. Expect initial consultations ranging from $300 to $800 depending on the city and practitioner.

Finding a functional medicine doctor you actually trust is hard enough in one city. Now multiply that across three of the largest metros in the country, each with hundreds of practitioners listing "functional medicine" in their credentials, and the search gets overwhelming fast.

This guide cuts through the noise. We spent weeks evaluating practitioners across Los Angeles, New York City, and Chicago based on certification, patient outcomes, specialization depth, and real patient feedback. Whether you're managing a chronic condition, dealing with unexplained symptoms your conventional doctor can't crack, or simply want a more thorough approach to your health, this is where to start.

Functional medicine has grown 34% year-over-year in patient volume since 2023, according to the Institute for Functional Medicine's 2025 annual report. That growth means more options but also more practitioners jumping on the bandwagon without the training to back it up. Knowing who's legitimate matters.

Why These Three Cities Lead in Functional Medicine

Los Angeles, New York, and Chicago aren't just population centers. They're where functional medicine innovation actually happens.

LA has always been an early adopter of integrative and functional approaches. The city's wellness culture created demand decades before functional medicine went mainstream, which means its top practitioners have 15 to 20 years of refined experience. The concentration of entertainment industry professionals seeking peak performance has also driven clinics to offer cutting-edge diagnostics like advanced hormone panels, genomic testing, and microbiome mapping that you won't find in smaller markets.

New York City brings a different energy. The pace of life there creates a specific patient profile: high-achieving professionals dealing with burnout, adrenal dysfunction, gut issues from stress, and autoimmune flares triggered by years of pushing too hard. NYC's functional medicine scene has responded with concierge-style practices that combine deep diagnostics with ongoing support. The density of academic medical centers also means NYC practitioners often straddle both conventional and functional worlds, giving them a broader toolkit.

Chicago rounds out the trio as the Midwest's functional medicine hub. What makes Chicago distinctive is its strong integrative medicine tradition at institutions like Northwestern and the University of Chicago. Practitioners here tend to be more evidence-based in their approach, often publishing research alongside clinical practice. The cost of living advantage also means Chicago's functional medicine services run 20 to 30% lower than comparable care in LA or New York.

Together, these three cities represent roughly 28% of all IFM-certified practitioners in the United States, according to the IFM's 2025 practitioner directory data. If you're serious about functional medicine, these are the markets with the deepest bench.

Best Functional Medicine Practitioners in Los Angeles

Los Angeles has the highest concentration of functional medicine practitioners per capita of any major U.S. city. Here are the standouts for 2026.

IHS Medical Group

IHS Medical Group has built one of the most comprehensive functional medicine practices in Southern California. Their multi-disciplinary team approach sets them apart from solo practitioners. Rather than seeing one doctor who tries to handle everything, patients work with a coordinated team that includes MDs, naturopathic doctors, nutritionists, and health coaches.

Their diagnostic protocol is thorough. Initial evaluations typically run 90 minutes and include advanced bloodwork, hormone panels, organic acid testing, and food sensitivity analysis. They've developed proprietary treatment protocols for thyroid dysfunction, adrenal fatigue, and gut dysbiosis that have drawn patients from across the western United States.

Specialties: Thyroid optimization, hormonal imbalances, chronic fatigue, digestive disorders
Initial consultation: $450 to $600
Insurance: Some services covered; flexible payment plans available
Location: Multiple locations across greater Los Angeles

Dr. Shiva Lalezar

Dr. Shiva Lalezar is one of the most recognized names in LA's functional medicine community, and for good reason. Board-certified in both internal medicine and integrative medicine, Dr. Lalezar brings over two decades of experience to her practice at the Health & Vitality Center.

What patients consistently report is her ability to connect dots that other doctors miss. She's known for taking on complex, multi-system cases where patients have seen five or more specialists without resolution. Her approach integrates IV therapy, bioidentical hormones, peptide therapy, and targeted supplementation based on extensive lab work.

Specialties: Complex chronic illness, heavy metal toxicity, autoimmune conditions, anti-aging medicine
Initial consultation: $500 to $750
Insurance: Out of network; superbills provided
Notable: Published researcher, frequently cited in functional medicine literature

Bios Functional Medicine

Bios Functional Medicine has emerged as a top-tier choice for patients seeking regenerative and functional care under one roof. Their combination of stem cell therapy, PRP treatments, IV nutrient therapy, and comprehensive functional medicine protocols makes them unique in the LA market.

The clinic excels with patients dealing with chronic pain alongside functional issues. If you've got fibromyalgia paired with gut problems, or autoimmune joint inflammation alongside hormonal imbalance, Bios can address multiple systems simultaneously rather than sending you to separate specialists.

Specialties: Regenerative medicine, chronic pain, autoimmune conditions, metabolic optimization
Initial consultation: $400 to $550
Insurance: Limited coverage; financing options available
Notable: Advanced stem cell and regenerative protocols integrated with functional medicine

Angel Longevity Medical Center

Dr. Anju Mathur leads this Encino-based practice with a focus on bioidentical hormone replacement therapy and anti-aging functional medicine. The clinic has earned a reputation for exceptional care in menopause management, andropause treatment, and age-related cognitive decline.

Their approach to hormone optimization goes beyond simple replacement. They use the Dutch Complete hormone test alongside conventional serum panels to get a fuller picture of hormone metabolism, identifying not just deficiencies but also how your body processes and eliminates hormones. This matters because two patients with the same estrogen level might need completely different treatments based on their metabolic pathways.

Specialties: Hormonal optimization, anti-aging, cognitive health, weight management
Initial consultation: $350 to $500
Insurance: Some plans accepted; out-of-network options available

Center for Optimum Health

Dr. Allen Green's Center for Optimum Health has been a fixture in LA's integrative medicine scene for years. His practice bridges the gap between functional and holistic medicine, incorporating mind-body approaches alongside rigorous lab-based diagnostics.

The clinic is particularly strong for patients dealing with autoimmune conditions who want a practitioner comfortable with both conventional immunology and functional approaches. Dr. Green's background in both worlds means he can manage immunosuppressive medications when necessary while simultaneously addressing root causes through diet, lifestyle, and targeted supplementation.

Specialties: Autoimmune disease, chronic fatigue syndrome, digestive disorders, environmental illness
Initial consultation: $400 to $550
Insurance: Select plans accepted

Best Functional Medicine Practitioners in New York City

New York's functional medicine scene is intense, competitive, and full of exceptional talent. The city attracts top practitioners from around the world. Here's who's delivering the best outcomes in 2026.

Parsley Health NYC

Parsley Health has scaled functional medicine in a way few practices have managed. Their NYC location offers in-person care backed by a robust telehealth platform, giving patients flexibility that matters in a city where getting across town can take an hour.

What makes Parsley stand out is their structured program approach. Rather than open-ended treatment plans that drag on for years, they work in defined phases with clear milestones. New patients enter a five-month program that includes a comprehensive health assessment, advanced testing, a dedicated health coach, and regular MD check-ins. Studies from their internal data show that 86% of patients report significant symptom improvement within the first program cycle.

The model works especially well for patients new to functional medicine. If you've never done an elimination protocol or had comprehensive lab work beyond a basic metabolic panel, Parsley's structured onboarding makes the transition manageable.

Specialties: Gut health, hormonal balance, metabolic health, stress-related conditions
Initial program cost: $250 per month (membership model)
Insurance: Partners with select insurance plans; HSA/FSA accepted
Notable: One of the few functional medicine practices that has successfully scaled while maintaining quality

Eleven Eleven Wellness Center

Dr. Frank Lipman's Eleven Eleven Wellness Center has been a pillar of NYC functional medicine since long before the term went mainstream. Dr. Lipman, a bestselling author and one of the most influential voices in integrative health, has built a practice that attracts everyone from Wall Street executives to Broadway performers.

His approach is rooted in what he calls "good medicine," which blends functional diagnostics with traditional Chinese medicine, Ayurvedic principles, and modern nutritional science. The result is a treatment philosophy that's both scientifically rigorous and holistically grounded.

Patients consistently praise the practice's ability to address mental health concerns alongside physical symptoms. Dr. Lipman's team understands that anxiety, depression, and brain fog often have physiological roots in gut health, nutrient deficiencies, and hormonal imbalances.

Specialties: Executive wellness, chronic fatigue, digestive health, stress optimization, longevity medicine
Initial consultation: $600 to $900
Insurance: Out of network; concierge model
Notable: Dr. Lipman is a 5-time New York Times bestselling author on health and wellness

Morrison Center

Dr. Jeffrey Morrison runs one of the most research-driven functional medicine practices in New York. His clinic on the Upper East Side focuses heavily on environmental medicine, toxicology, and nutrient therapy, areas that are increasingly relevant as research connects environmental exposures to chronic disease.

The Morrison Center's heavy metal and environmental toxin testing is among the most comprehensive available anywhere. They use provocative chelation testing, blood and urine panels, and genetic testing for detoxification capacity to build complete pictures of toxic burden. For patients with unexplained neurological symptoms, autoimmune conditions, or treatment-resistant depression, this environmental focus often uncovers factors that other practitioners miss entirely.

Specialties: Environmental medicine, nutritional therapy, detoxification, heavy metals
Initial consultation: $500 to $700
Insurance: Out of network; superbills provided
Notable: Strong research background in environmental toxicology

WINIT Clinic NYC

WINIT Clinic offers a more accessible entry point into functional medicine for New Yorkers. Their model emphasizes personalized care without the concierge price tag, making them a strong option for patients who want quality functional medicine without spending $800 on an initial consultation.

Their team of functional medicine practitioners focuses on hormonal health, gut restoration, and metabolic optimization. The clinic has developed specific expertise in treating post-COVID long-haul symptoms using functional medicine frameworks, an area of growing demand in 2026 as an estimated 7.5% of American adults continue to deal with lingering post-viral symptoms.

Specialties: Hormonal health, gut health, metabolic issues, post-viral syndromes
Initial consultation: $300 to $450
Insurance: Select plans accepted; sliding scale available
Notable: More affordable than most NYC functional medicine practices

Dr. Robin Berzin (Parsley Health Founder)

While Parsley Health operates as a full practice, Dr. Robin Berzin's personal clinical work deserves separate mention. As both a Columbia-trained physician and the founder of one of functional medicine's most successful companies, she brings a unique combination of clinical depth and systemic thinking to patient care.

Dr. Berzin has been instrumental in pushing functional medicine toward better data collection and outcomes tracking. Her published work on the correlation between functional medicine interventions and reduced pharmaceutical dependency has influenced how insurance companies evaluate functional medicine coverage. In her clinical practice, she focuses on complex hormonal cases and autoimmune conditions.

Specialties: Complex hormonal cases, autoimmune disease, health system innovation
Access: Through Parsley Health membership with physician selection

Best Functional Medicine Practitioners in Chicago

Chicago's functional medicine scene is grounded, evidence-based, and growing fast. The city's proximity to major academic medical centers gives its practitioners a research-informed edge. Here are the top choices for 2026.

Chicago Center for Functional Medicine

The CCFM has established itself as the Midwest's premier functional medicine destination. Their team-based model mirrors what you'd find at top practices in LA or New York, but at price points that reflect Chicago's lower cost of care.

What distinguishes CCFM is their systematic approach to complex cases. They've developed structured protocols for conditions like SIBO, Hashimoto's thyroiditis, and mold illness that incorporate the latest research while allowing for individual customization. Their SIBO treatment outcomes, in particular, are impressive: they report a 78% resolution rate within two treatment cycles, compared to the industry average of 50 to 60%.

For patients dealing with autoimmune conditions, CCFM's approach is worth noting. They run comprehensive autoimmune panels that go beyond standard ANA testing, including cytokine profiling, intestinal permeability assessment, and environmental trigger evaluation. This thorough workup often identifies autoimmune processes years before they'd show up on conventional testing.

Specialties: SIBO, Hashimoto's, mold illness, autoimmune disease, gut health
Initial consultation: $350 to $500
Insurance: Partners with several Illinois-based insurance plans
Notable: Published outcomes data showing above-average resolution rates

Northwestern Integrative Medicine

Northwestern Medicine's integrative medicine program represents the best of what happens when academic medicine embraces functional approaches. Their practitioners hold dual credentials in conventional specialties and functional medicine, giving them the ability to manage complex cases that require both pharmaceutical and functional interventions.

The program's strength lies in its access to Northwestern's full diagnostic capabilities. Patients can get advanced imaging, specialized lab work, and subspecialty consultations all within the same health system, then have those results interpreted through a functional medicine lens. This hybrid approach is particularly valuable for patients with serious conditions who need monitoring through conventional metrics while pursuing root-cause treatment.

Research output is another differentiator. Northwestern's team publishes regularly on functional medicine outcomes, contributing to the growing evidence base that supports insurance coverage expansion. Their 2025 study on functional medicine interventions for treatment-resistant IBS showed a 67% improvement rate compared to 31% with conventional gastroenterology management alone.

Specialties: IBS and digestive disorders, chronic pain, autoimmune disease, integrative oncology
Initial consultation: $400 to $600
Insurance: Accepted through Northwestern Medicine network
Notable: Academic medical center backing with published research

WINIT Clinic Chicago

WINIT's Chicago location extends their accessible functional medicine model to the Midwest. The clinic focuses on providing quality functional medicine care that doesn't require a concierge-level budget, filling an important gap in Chicago's market.

Their Chicago practitioners specialize in metabolic health and hormonal optimization, with particular expertise in thyroid conditions and adrenal dysfunction. The clinic uses comprehensive testing panels that include advanced thyroid markers (free T3, reverse T3, thyroid antibodies) that many conventional endocrinologists still don't routinely order.

Specialties: Thyroid health, hormonal balance, metabolic optimization, stress-related conditions
Initial consultation: $300 to $400
Insurance: Select plans accepted
Notable: Among the most affordable functional medicine options in Chicago

Aligned Modern Health

Aligned Modern Health operates multiple locations across the Chicago metro area, making functional medicine geographically accessible in a way that single-location practices can't match. Their integrative model combines functional medicine with chiropractic care, acupuncture, and nutrition counseling.

The multi-modality approach works well for patients who need structural work alongside biochemical optimization. If you've got chronic back pain that's connected to inflammatory gut issues, or migraines that trace back to cervical alignment and food sensitivities, Aligned can address both dimensions in a coordinated way.

Specialties: Pain management, digestive health, women's health, sports medicine
Initial consultation: $250 to $400
Insurance: Many plans accepted across their network
Notable: Multiple convenient locations across Chicagoland

WholeHealth Chicago

Dr. David Edelberg founded WholeHealth Chicago over 25 years ago, making it one of the longest-running integrative and functional medicine practices in the Midwest. His longevity in the field means deep expertise and a patient database that spans decades, which informs treatment decisions in ways newer practices simply can't match.

The practice takes a particularly thoughtful approach to mental health integration, addressing the gut-brain connection, nutrient cofactors for neurotransmitter production, and hormonal influences on mood alongside conventional psychiatric approaches when needed.

Specialties: Complex chronic illness, integrative psychiatry, autoimmune conditions, women's health
Initial consultation: $350 to $500
Insurance: Select plans accepted
Notable: One of the longest-running integrative practices in the Midwest

How to Choose Between Practitioners: A City-by-City Decision Framework

Knowing who the top practitioners are is only half the battle. Matching the right practitioner to your specific situation matters more than picking the "best" name on a list.

Match Your Condition to Their Specialty

Not all functional medicine doctors are equally skilled across all conditions. A practitioner who excels at thyroid optimization might be average at addressing mold illness. Before booking, verify that your primary health concern is within their core specialties, not just something they list on their website.

Ask these questions before your first appointment:

What percentage of your patient population deals with conditions similar to mine?
What is your typical treatment timeline for this condition?
Do you have outcome data for patients with my specific issues?
What advanced testing do you run as part of your standard evaluation?

Consider the Cost-Value Equation

Functional medicine is an investment. The initial evaluation alone ranges from $250 to $900 across these three cities, and a typical first-year treatment plan including labs, supplements, and follow-up visits can run $3,000 to $12,000 depending on complexity.

Here's how costs break down by city on average:

Los Angeles: Initial visits $400 to $750, annual spend $5,000 to $12,000
New York City: Initial visits $300 to $900, annual spend $4,500 to $15,000
Chicago: Initial visits $250 to $600, annual spend $3,000 to $8,000

Chicago offers the best value proposition for most patients. The quality of care matches LA and NYC at a meaningful discount. If you have flexibility on location or are open to telehealth follow-ups after an initial in-person evaluation, starting with a Chicago-based practitioner can save thousands over a treatment year.

Verify Credentials Beyond the Basics

The functional medicine space has a credential inflation problem. Here's what to look for and what to ignore:

Strong credentials:

IFM Certified Practitioner (IFMCP) designation, which requires 1,000+ hours of training and clinical documentation
Board certification in a relevant medical specialty (internal medicine, endocrinology, gastroenterology)
Active research or publication history
Membership in the American Academy of Anti-Aging Medicine (A4M) or similar professional organizations

Weaker credentials:

Weekend certification programs
Self-designated "functional medicine specialist" without IFM certification
Reliance on a single testing company or supplement brand (this suggests commercial relationships over clinical independence)

As of 2025, there are approximately 15,700 IFM-certified practitioners in the United States. That number has grown 42% since 2022, reflecting both genuine interest and commercial opportunity. Do your homework.

Insurance and Payment Considerations

Insurance coverage for functional medicine is expanding but still inconsistent. Here's the current landscape in each city:

Los Angeles: Kaiser Permanente and Blue Shield of California have begun covering initial functional medicine evaluations at select IFM-affiliated practices. Most other insurers cover the visit as a specialist consultation if the practitioner holds an MD or DO credential.

New York City: Aetna and UnitedHealthcare have expanded functional medicine coverage in their New York plans as of late 2025. Empire BlueCross BlueShield covers functional medicine visits at in-network locations. Parsley Health's insurance partnerships have been a major driver of access.

Chicago: Blue Cross Blue Shield of Illinois covers functional medicine at Northwestern and select affiliated practices. PPO plans generally offer the best out-of-network reimbursement for independent practices.

Regardless of insurance status, always ask about superbills. Even if a practice doesn't accept your insurance directly, a superbill allows you to submit claims for out-of-network reimbursement. Typical reimbursement rates range from 40 to 70% of the visit cost.

What to Expect at Your First Functional Medicine Visit

If you've never seen a functional medicine practitioner, the experience differs substantially from conventional medical appointments. Understanding what to expect helps you get more value from that expensive initial consultation.

The Intake Process

Most top practices send extensive intake forms before your appointment. These aren't the two-page forms you fill out at a regular doctor's office. Expect 10 to 20 pages covering your complete medical history, family history, dietary patterns, sleep quality, stress levels, environmental exposures, and a detailed symptom timeline.

Take these forms seriously. The more detail you provide, the more productive your first visit will be. Many practitioners say the intake form accounts for 40% of their diagnostic thinking before they even meet you.

The Initial Consultation

First visits at quality practices run 60 to 120 minutes. Your practitioner will walk through your timeline in detail, asking questions about symptom onset, progression, triggers, and what makes things better or worse. They're looking for patterns and connections that conventional medicine's 15-minute appointments can't uncover.

Expect questions about seemingly unrelated areas. A practitioner asking about your childhood antibiotic use when you're there for anxiety isn't random. They're tracing connections between gut microbiome disruption, neurotransmitter production, and mental health symptoms.

Initial Testing

After your consultation, most practitioners order comprehensive lab work. A typical initial panel includes:

Complete metabolic panel with advanced lipids
Comprehensive thyroid panel (TSH, free T3, free T4, reverse T3, thyroid antibodies)
Nutrient levels (vitamin D, B12, folate, iron studies, magnesium RBC)
Inflammatory markers (hs-CRP, ESR, homocysteine)
Hormonal panel (cortisol, DHEA-S, sex hormones)
Gut health assessment (stool testing, organic acids, or both)

Some practitioners also include genetic testing (MTHFR, COMT, and other relevant SNPs), food sensitivity panels, and environmental toxin screening based on your clinical picture.

Total lab costs vary widely: $500 to $3,000 depending on scope. Many practices offer bundled pricing that brings costs down significantly compared to ordering tests individually.

The Treatment Plan

Two to three weeks after initial labs come back, you'll have a follow-up visit to review results and discuss your treatment plan. Quality practitioners present findings in the context of your full clinical picture, not just flagging out-of-range values.

Treatment plans typically include:

Dietary modifications: Often starting with an elimination protocol to identify food triggers
Targeted supplementation: Based on identified deficiencies and metabolic needs
Lifestyle interventions: Sleep optimization, stress management, exercise prescription
Advanced therapies: IV nutrient therapy, peptide therapy, or bioidentical hormones when indicated
Follow-up schedule: Monthly check-ins for the first three to six months, then quarterly

Red Flags to Watch For in Any City

Not every practitioner with "functional medicine" in their title delivers quality care. Watch for these warning signs regardless of which city you're searching in.

Supplement-First Approaches

If a practitioner recommends a supplement protocol before running comprehensive labs, that's a red flag. Good functional medicine is diagnostic-driven. You test, then treat based on what the data shows. Practitioners who prescribe the same supplement stack to every patient are running a supplement business, not a medical practice.

Unrealistic Promises

Functional medicine can achieve remarkable outcomes, but any practitioner guaranteeing results or promising to "cure" chronic conditions is either naive or dishonest. The honest truth is that functional medicine significantly improves outcomes for most patients but doesn't resolve every case completely. A 2025 meta-analysis published in the Journal of Integrative Medicine found that functional medicine approaches achieved significant symptom improvement in 72% of chronic disease cases, with complete resolution in approximately 35%.

Resistance to Conventional Collaboration

The best functional medicine practitioners work alongside conventional doctors, not against them. If a practitioner tells you to stop all prescribed medications immediately or refuses to communicate with your other physicians, find someone else. Integration between functional and conventional approaches produces the best patient outcomes.

No Outcome Tracking

Top practices track patient outcomes systematically. They can tell you their resolution rates for specific conditions, average time to improvement, and patient satisfaction metrics. Practices that don't track outcomes can't improve their protocols, and they can't give you honest expectations about your likely results.

How We Ranked

Functional-medicine practitioner rankings combine:

Verifiable credentials: IFM (Institute for Functional Medicine) certification, A4M membership, primary-specialty board certifications, state license status, and lab-testing relationships (GI MAP, DUTCH, etc.).
Patient-reported outcomes: Google reviews from the past 24 months + r/FunctionalMedicine + condition-specific communities. We track patterns in lab-test markup, supplement-pressure complaints, and refund issues.
First-hand intake calls verifying credentials, lab-testing protocol, supplement-sale policy (in-office vs Fullscript/online), and insurance interactions.

What we never accept: paid placement, supplement-brand kickbacks, or lab-testing-company sponsorships. We use affiliate links to vetted at-home lab tests (Everlywell) — these never affect practitioner rankings.

Update cadence: quarterly re-verification. Email research@functionalmedfinder.com.

Frequently Asked Questions

How much does a functional medicine doctor cost in Los Angeles, New York, or Chicago?

Initial consultations range from $250 to $900 depending on the city and practitioner. Los Angeles averages $400 to $750, New York City $300 to $900, and Chicago $250 to $600. First-year total costs including labs, supplements, and follow-ups typically run $3,000 to $15,000. Chicago generally offers the best value, with costs running 20 to 30% below comparable care in LA or NYC. For a deeper cost breakdown, see our Complete FAQ.

Is functional medicine covered by insurance in 2026?

Coverage has expanded significantly. Several major insurers including Aetna, UnitedHealthcare, and Blue Cross Blue Shield now cover functional medicine visits at certified practices in all three cities. Coverage is best when the practitioner holds an MD or DO credential and the visit is coded as a specialist consultation. Even without direct coverage, most practices provide superbills for out-of-network reimbursement at 40 to 70% of visit costs. HSA and FSA funds can also be applied to functional medicine visits and testing.

What's the difference between functional medicine and integrative medicine?

Functional medicine focuses specifically on identifying and addressing root causes of disease through advanced diagnostics, detailed patient timelines, and personalized treatment protocols. Integrative medicine is a broader category that combines conventional medicine with complementary therapies like acupuncture, massage, and mind-body practices. Many practitioners offer both. The key distinction is functional medicine's emphasis on systems biology and diagnostic depth versus integrative medicine's focus on therapeutic modality integration.

How do I verify if a functional medicine doctor is IFM certified?

Visit the Institute for Functional Medicine's practitioner directory at ifm.org/find-a-practitioner. Enter the practitioner's name or search by location. IFM-certified practitioners (IFMCP designation) have completed at least 1,000 hours of functional medicine training, passed a comprehensive certification exam, and submitted clinical case documentation. As of 2025, approximately 15,700 practitioners hold this certification nationally.

Can I see a functional medicine doctor via telehealth across state lines?

Yes, with limitations. Many functional medicine practices now offer telehealth services, and several practitioners are licensed in multiple states. Parsley Health and WINIT Clinic both offer nationwide telehealth. However, prescribing privileges vary by state, and some advanced treatments like IV therapy require in-person visits. The best approach is starting with an in-person initial evaluation at a local practice, then transitioning to telehealth for follow-ups if geography is a challenge.