BestDosage

Best Functional Medicine Doctors in California

Functional medicine practitioners who address root causes of disease through systems-oriented, patient-centered care. Browse and compare functional medicine doctors across California, scored by AI, powered by real data.

Showing 60 of 117 functional medicine doctors in California

PractitionerElite9.7

Jan Kielmann, DCN, MS, CNS, IFMCP, RHGt, CPTR

Los Angeles, CA
functional-medicine
170 verified reviews
PractitionerElite9.6

Darcy Oikawa, DC, IFMCP

San Francisco, CA
functional-medicine
159 verified reviews
PractitionerElite9.4

Kelly K. McCann, MD, MPH&TM, IFMCP, ABoIM

Los Angeles, CA
Published
functional-medicine
50 verified reviews
PractitionerElite9.4

Tiffany Caplan, DC, DNM, IFMCP

Los Angeles, CA
functional-medicine
3278 verified reviews
PractitionerElite9.3

Carolyn Finnegan, DC, IFMCP

San Francisco, CA
functional-medicine
67 verified reviews
PractitionerElite9.2

Michelle Ross, MS, MA, CNS, LDN, IFMCP

San Francisco, CA
functional-medicine
1746 verified reviews
PractitionerElite9.1

Hillary Bassett, MD, IFMCP

San Francisco, CA
functional-medicine
43 verified reviews
PractitionerElite9.1

Theresa Tsingis, PA-C, DC, MPH, MS, IFMCP

San Francisco, CA
functional-medicine
43 verified reviews
PractitionerElite9.0

Laura Paris, DACM, LAc

San Francisco, CA
functional-medicine
20 verified reviews
PractitionerExceptional8.9

Elizabeth Greenfield, MS, APRN, IFMCP

San Francisco, CA
functional-medicine
18 verified reviews
PractitionerExceptional8.8

David Wiss, PhD, RDN, IFMCP

Los Angeles, CA
functional-medicine
18 verified reviews
PractitionerExceptional8.8

Jiyeon Park, DACM, LAc, IFMCP

Los Angeles, CA
Published
functional-medicine
25 verified reviews
PractitionerExceptional8.8

Myrto A. Ashe, MD, MPH, IFMCP

San Francisco, CA
functional-medicine
18 verified reviews
PractitionerExceptional8.8

Brianna Browning, DTCM, LAc, IFMCP

Sacramento, CA
functional-medicine
3184 verified reviews
PractitionerExceptional8.7

Christina Marino, L.AC, DAOM, DIPL.OM, DIPL.Ac. MS, IFMCP

Los Angeles, CA
functional-medicine
1 verified reviews
PractitionerExceptional8.7

Lexy Parsons, DACM, MS, L.Ac

San Diego, CA
functional-medicine
256 verified reviews
PractitionerExceptional8.6

Brent A. Caplan, DC, DNM, IFMCP

Los Angeles, CA
functional-medicine
2 verified reviews
PractitionerExceptional8.6

Daniel Metzger, DACM, L.Ac., IFMCP

San Francisco, CA
Published
functional-medicine
4 verified reviews
PractitionerExceptional8.6

Smitha C. Reddy, MD, Functional Medicine, Rheumatologist

San Diego, CA
Published
functional-medicine
109 verified reviews
PractitionerExceptional8.6

Richard Chen, MD

San Francisco, CA
functional-medicine
68 verified reviews
PractitionerExceptional8.6

Dr. Ryan Lazarus, MSc, CNS, IFMCP, DC

San Francisco, CA
functional-medicine
1 verified reviews
PractitionerExceptional8.6

Judy Liu, MD

San Francisco, CA
PublishedClinical Trials
functional-medicine
67 verified reviews
PractitionerExceptional8.5

Robert Drew Francis , OMD, L.Ac

Los Angeles, CA
functional-medicine
3 verified reviews
PractitionerExceptional8.4

Kimberly Kelly, ND

Los Angeles, CA
Published
functional-medicine
26 verified reviews
PractitionerExceptional8.4

Ionela Hubbard, OMD, LAc, IFMCP

Los Angeles, CA
functional-medicine
37 verified reviews
PractitionerExceptional8.4

Jordan Scott, ND

San Diego, CA
Published
functional-medicine
68 verified reviews
PractitionerExceptional8.4

Laura Wakil, MD, IFMCP

Los Angeles, CA
functional-medicine
11 verified reviews
PractitionerExceptional8.3

Helene Pulnik, ND

Los Angeles, CA
functional-medicine
13 verified reviews
PractitionerExceptional8.3

Basima Williams, DO

San Diego, CA
Published
functional-medicine
24 verified reviews
PractitionerExceptional8.3

Aaron Erez, DO

San Diego, CA
functional-medicine
22 verified reviews
PractitionerExceptional8.3

Danielle J. Douglas, MD

San Diego, CA
Clinical Trials
functional-medicine
23 verified reviews
PractitionerExceptional8.3

Ana Virginia Jofili, MD

Los Angeles, CA
Published
functional-medicine
24 verified reviews
PractitionerExceptional8.3

Nicole L. Lyons, ND

Los Angeles, CA
functional-medicine
1 verified reviews
PractitionerExceptional8.3

Edmund H. Lew, MD

Los Angeles, CA
functional-medicine
25 verified reviews
PractitionerExceptional8.2

Laura M. Abrignani, RN, NP, MSN

Los Angeles, CA
functional-medicine
136 verified reviews
PractitionerExceptional8.2

Natalya Denissov, MD

San Francisco, CA
functional-medicine
78 verified reviews
PractitionerExceptional8.1

Jeffrey Mark, MD

San Francisco, CA
PublishedClinical Trials
functional-medicine
71 verified reviews
PractitionerExceptional8.1

Sally Daganzo, MD, MA, FACP, CEDS

San Francisco, CA
functional-medicine
1 verified reviews
PractitionerExceptional8.1

Kate P. Egan, ND, IFMCP

Los Angeles, CA
functional-medicine
PractitionerExceptional8.1

Sylvie Wellhausen, DC

Los Angeles, CA
functional-medicine
2 verified reviews
PractitionerExceptional8.1

Antonella Aguilera-Ruiz, ND

San Francisco, CA
functional-medicine
47 verified reviews
PractitionerExceptional8.1

Lissa Solis, DACM, LAc

Los Angeles, CA
functional-medicine
36 verified reviews
PractitionerExceptional8.0

Rekha Murali, MD, IFMCP, Health Coach

San Francisco, CA
functional-medicine
12 verified reviews
PractitionerExceptional8.0

Elroy Vojdani, MD

Los Angeles, CA
functional-medicine
10 verified reviews
PractitionerExceptional8.0

Kim Shine, MD

Los Angeles, CA
functional-medicine
147 verified reviews
PractitionerHighly Recommended7.9

Craig C. Mortensen, DC

San Francisco, CA
functional-medicine
1 verified reviews
PractitionerHighly Recommended7.8

Manna Semby, ND,MSCP, IFMCP

Los Angeles, CA
Published
functional-medicine
4 verified reviews
PractitionerHighly Recommended7.8

Jennie Walker, MD

Fresno, CA
functional-medicine
1 verified reviews
PractitionerHighly Recommended7.8

George Rice, MD, MS

San Diego, CA
functional-medicine
4 verified reviews
PractitionerHighly Recommended7.8

Gaila Mackenzie-Strawn, MS, DC, CTN, DNM, CFMP

Los Angeles, CA
functional-medicine
26 verified reviews
PractitionerHighly Recommended7.8

Bill Barley, MD

Sacramento, CA
functional-medicine
7 verified reviews
PractitionerHighly Recommended7.8

Franne Berez, MD

Los Angeles, CA
functional-medicine
14 verified reviews
PractitionerHighly Recommended7.8

Tracy H. McCarthy, MD

San Francisco, CA
functional-medicine
1 verified reviews
PractitionerHighly Recommended7.8

John Beech, DC, IFMCP, CFMP

San Francisco, CA
functional-medicine
3 verified reviews
PractitionerHighly Recommended7.7

Jim Herkimer, DPT, IFMCP

Los Angeles, CA
functional-medicine
5 verified reviews
PractitionerHighly Recommended7.7

Cambria Judd, MD

Los Angeles, CA
functional-medicine
9 verified reviews
PractitionerHighly Recommended7.7

Maria Santee, PA-C, MPH, A4M Functional Fertility

San Francisco, CA
functional-medicine
8 verified reviews
PractitionerHighly Recommended7.6

Gabrielle Klein, ND

San Francisco, CA
Published
functional-medicine
1 verified reviews
PractitionerHighly Recommended7.6

Jennifer Tang, MD, AFMCP, Acupuncture

Los Angeles, CA
functional-medicine
6 verified reviews
PractitionerHighly Recommended7.6

Michael Villadelgado, MD

Los Angeles, CA
Published
functional-medicine
4 verified reviews

Frequently Asked Questions

How are functional medicine doctors in California scored?
Every functional medicine doctor is evaluated using the BDS (BestDosage Score) methodology across 12 categories including credentials, patient reviews, treatment philosophy, and pricing transparency. Scores range from 1 to 10, with tiers from "Listed" to "Elite."
How many functional medicine doctors are listed in California?
We currently have 117 functional medicine doctors listed in California. Browse by city to find providers near you.
Which cities in California have the most functional medicine doctors?
The top cities for functional medicine doctors in California include Los Angeles (57), San Francisco (42), San Diego (10), Sacramento (4), Fresno (3).
Is it free to find a functional medicine doctor on BestDosage?
Yes, browsing the directory, viewing profiles, and comparing providers is completely free. Our scoring methodology is published openly for full transparency.