Doctors and health care providers in Oakland, CA
18,558 individual NPPES records list a practice address in Oakland, 7th of 812 California cities. The largest group is marriage & family therapist: 1,576, 8% of the city's records, against 6% across California. Page 357 of 372.
The 8 largest groups in Oakland
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Oakland in California
- Rank in California7th of 812 cities by records
- Share of the state1.9% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups22.2% of all records
- Marriage & Family Therapist rank5th of the 10 California cities with the most
Compared with California as a whole, Oakland has 2.9× the state's share of counselor records and 0.29× its share of behavior technician records.
Providers in Oakland, alphabetically
- Lynnette WilliamsSpecialist1053999698
- Lynnette Williams, SUDCCAddiction (Substance Use Disorder) Counselor1093467953
- Marcus WilliamsEmergency Medicine Physician1851708168
- Marilyn Williams, NPWomen's Health Nurse Practitioner1962402602
- Marisa WilliamsCommunity Health Worker1619757697
- Marlonie WilliamsBehavior Technician1275368359
- Martina WilliamsCounselor1093347213
- Mary Jo Williams, RNAdministrator Registered Nurse1144333220
- Matthew WilliamsMental Health Counselor1467872341
- McKinley WilliamsSpecialist1821477688
- Mimi Williams, MDStudent in an Organized Health Care Education/Training Program1114620879
- Mitzi Williams, DPMFoot & Ankle Surgery Podiatrist1861673972
- Patanisha WilliamsCounselor1093018194
- Rebecca Williams, MAMarriage & Family Therapist1205027984
- Rebekka Williams, LMFTMarriage & Family Therapist1568144038
- Rex Williams, MDSurgery Physician1700076924
- Richard WilliamsCase Manager/Care Coordinator1033232079
- Ronika WilliamsMental Health Counselor1447871561
- Shania Williams, NREMTDoula1063288843
- Shanica WilliamsMental Health Counselor1982027918
- Shanya WilliamsBehavior Technician1912708983
- Sharon Williams, M.D.Pediatric Critical Care Medicine Physician1336119510
- Sharrise WilliamsCounselor1285184846
- Sheri WilliamsNurse's Aide1104746999
- Tahji WilliamsDay Training/Habilitation Specialist1770474884
- Tamia WilliamsSocial Worker1154017853
- Tate (teela) WilliamsCommunity Health Worker1740556604
- Tavare WilliamsCase Manager/Care Coordinator1104466549
- Tawny Williams, RADTAddiction (Substance Use Disorder) Counselor1255833042
- Thomas Williams, M.D.Pulmonary Disease Physician1619004967
- Tina WilliamsBehavior Technician1023795390
- Tyler Williams, DPTPhysical Therapist1386873305
- Tyronda WilliamsCase Manager/Care Coordinator1558075911
- Warren WilliamsCase Manager/Care Coordinator1497465405
- Wendell Williams, MDFamily Medicine Physician1093703357
- William Williams, MDOral & Maxillofacial Surgery (D.M.D.)1073539086
- Willona WilliamsCase Manager/Care Coordinator1316242308
- Yasmine WilliamsCounselor1134573231
- Zachary WilliamsCounselor1942167218
- Cayleigh Williamson, CRNACertified Registered Nurse Anesthetist1144863440
- Garry WilliamsonAddiction (Substance Use Disorder) Counselor1194911818
- Rayvon WilliamsonCase Manager/Care Coordinator1114655321
- Mady WillieCounselor1174996615
- Cortney WillifordBehavior Technician1639721434
- Rachel Willimott, LCSWClinical Social Worker1780093542
- Charonda WillisMarriage & Family Therapist1750565065
- Hannah WillisBehavior Technician1235995911
- Lawrence WillisStudent in an Organized Health Care Education/Training Program1225588205
- Liana WillisCommunity Health Worker1376324574
- Lydell WillisMental Health Counselor1134546047
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Oakland, California appears in the CMS National Plan and Provider Enumeration System with 18,558 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Oakland - 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 Oakland 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 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.
The provider mix in Oakland is weighted toward Marriage & Family Therapist (1,576 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,419 and Clinical Social Worker with 1,130). 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, Oakland reports roughly 47.6 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.
Of California's most common specialties, General Practice Dentistry is the most prominent one with no provider currently listing a Oakland practice address, a coverage gap Oakland patients typically fill by traveling to a larger nearby hub.
For Oakland patients, this directory is most useful as a starting shortlist. 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; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.
For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.
Common questions
How many doctors are in Oakland, CA?
There are 18,558 registered healthcare providers in Oakland, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Oakland?
The most common specialties in Oakland are Marriage & Family Therapist, Student in an Organized Health Care Education/Training Program, Clinical Social Worker, Mental Health Counselor, Behavior Technician. Marriage & Family Therapist has the most providers with 1,576.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.