2026 data CMS NPPES NUCC Taxonomy

Doctors in Berkeley, CA

Active healthcare providers in Berkeley sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

4,783
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Marriage & Family Therapist
Top specialty
554 providers
California
State
CA

4,783 healthcare providers across 20 specialties

Berkeley, California appears in the CMS National Plan and Provider Enumeration System with 4,783 registered healthcare providers spanning 20 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Berkeley - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Berkeley practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2023 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Berkeley is weighted toward Marriage & Family Therapist (554 clinicians, followed by Student in an Organized Health Care Education/Training Program with 457 and Clinical Social Worker with 255). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to California's population, Berkeley reports roughly 12.3 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

Within California, Berkeley ranks #35 of 805 cities tracked by provider count, accounting for 0.5% of the state's registered providers. Of California's most common specialties, Behavior Analyst is the most prominent one with no provider currently listing a Berkeley practice address, a coverage gap Berkeley patients typically fill by traveling to a larger nearby hub.

For Berkeley patients, this directory is most useful as a starting shortlist, searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

4,783
Providers
20
Specialties
#35
of 805 CA cities
0.5%
of CA providers
12.3
Per 100K (state)

Which specialties are most common in Berkeley

Marriage & Family Therapist 554
Student in an Organized Health Care Education/Training Program 457
Clinical Social Worker 255
Mental Health Counselor 246
Addiction (Substance Use Disorder) Counselor 245
Clinical Psychologist 177
Acupuncturist 155
Registered Nurse 134
Optometrist 120
Psychologist 120
Counselor 117
Internal Medicine Physician 98
Psychiatry Physician 95
Behavior Technician 93
Pharmacist 92
Family Medicine Physician 82
General Practice Dentistry 70
Case Manager/Care Coordinator 65
Dentist 65
Physical Therapist 63

Healthcare Providers (Page 63)

Name
Ellen (tess) O'Neil
Student in an Organized Health Care Education/Training Program
Olivia O'Neil-Zwicker
Behavior Technician
Tiffany O'Shaughnessy, PH.D.
Mental Health Counselor
Tracey O'Shea, FNP
Registered Nurse
Miriam Oakes, IMF
Mental Health Counselor
Sullivan Oakley
Student in an Organized Health Care Education/Training Program
Hisako Oba, CMT
Massage Therapist
Megan Oberdorfer
Student in an Organized Health Care Education/Training Program
Daniel Oberlin, M.D.
Urology Physician
Glenn Oberman, L.AC.
Acupuncturist
Vanessa Obidimalor, RN
Advanced Practice Midwife
Lilia Oceguera, M.D.
Pediatrics Physician
Denise Ochoa, NP-C
Registered Nurse
Natalia Ochoa
Student in an Organized Health Care Education/Training Program
Maria Ochoa Murillo, RN, IBCLC
Lactation Consultant (Registered Nurse)
Golaun Odabaei, M.D
Internal Medicine Physician
Walt Odets, PH.D.
Clinical Psychologist
Beth Oelberger, MFT
Marriage & Family Therapist
Alexa Oghobaase, MFT
Counselor
Obianauju Ogu
Maternal Newborn Registered Nurse
Sohyun Oh, PHARMD
Pharmacist
Richard Oken, M.D.
Pediatrics Physician
Ari Oklan
Family Psychologist
Oludayo Oladipo, FNP
Counselor
Lindsey Olander
Speech-Language Pathologist
Isaac Olawoye, LVN
Licensed Vocational Nurse
Michael Olawuni
Marriage & Family Therapist
Melissa Olazabal
Addiction (Substance Use Disorder) Counselor
Richard Olesen, DDS
Dentist
Robin Olesen
Addiction (Substance Use Disorder) Counselor
Ana Olivarez-Levinson, LCSW
Social Worker
Gina Oliveira, M.S.P.T
Physical Therapist
Irina Olmezova, D.D.S.
Prosthodontics
Laurel Olslund, N.P.
Adult Health Clinical Nurse Specialist
Andrea Olson, M.S. CCC-SLP
Addiction (Substance Use Disorder) Counselor
James Olson, DDS
General Practice Dentistry
Evelyn Oluoha, DNP, FNP
Family Nurse Practitioner
Julie Omelveny, MD
Internal Medicine Physician
Tocosa Onea, L.C.S.W.
Clinical Social Worker
Bethany Oneill
Occupational Therapist
Jacqueline Ong
Clinical Social Worker
Rena Oppenheimer, LCSW
Clinical Social Worker
Mia Orans
Student in an Organized Health Care Education/Training Program
Jane Orechwa
Mental Health Counselor
Taylor Oreilly, DDS
General Practice Dentistry
Deborah Orel-Bixler, O.D., PH.D.
Pediatric Optometrist
Arielle Orenstein, MA
Mental Health Counselor
Shayna Orfus, ND
Naturopath
Peggy Orlin, MFT
Mental Health Counselor
Annice Ormiston, PSYD
Clinical Psychologist

Nearby Cities in California

Other California cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Berkeley, CA?
There are 4,783 registered healthcare providers in Berkeley, CA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Berkeley?
The most common specialties in Berkeley are Marriage & Family Therapist, Student in an Organized Health Care Education/Training Program, Clinical Social Worker, Mental Health Counselor, Addiction (Substance Use Disorder) Counselor. Marriage & Family Therapist has the most providers with 554.

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.