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 248 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
- Diana OlingerCounselor1972202505
- Paul OliphantSpeech-Language Pathologist1730033986
- Benilda Oliquino, RN, BSN, CCRN, FNP-CFamily Nurse Practitioner1477164051
- Gavino Oliva, MDSurgery Physician1487638656
- Julie Oliva, MDStudent in an Organized Health Care Education/Training Program1902242548
- Anaiya OlivaresCounselor1902573843
- Dominique OlivaresBehavior Technician1972155711
- Griselda Olivares, BSBehavior Analyst1598539009
- Amanda OlivasStudent in an Organized Health Care Education/Training Program1376346759
- Clifton OliveAdult Companion1598571556
- Constance Oliver, CLINICIANMental Health Counselor1891818969
- Danielle OliverBehavior Technician1740142447
- Terry OliverCounselor1851933733
- Vanecia OliverMental Health Counselor1134980980
- Henry Olivera PerezStudent in an Organized Health Care Education/Training Program1326798034
- Jessica OliveroPediatric Nurse Practitioner1366923138
- Jamy OlivoCommunity Health Worker1750197604
- Amanda Ollis, LMFTMarriage & Family Therapist1750550836
- Yolonda OllowayClinical Social Worker1174079149
- Rebecca Olmsted, MAMarriage & Family Therapist1992945133
- Phillip Olrich, D.D.S.Dentist1841651635
- Emma Olsen, M.S.Student in an Organized Health Care Education/Training Program1639550627
- Amanda OlsonBehavior Technician1053816009
- Amanda OlsonCounselor1255002309
- Aubrey OlsonSpeech-Language Pathologist1992651038
- Citiee OlsonBehavior Analyst1114419595
- Connie Olson, PHARM. D.Pharmacist1528136496
- Jennifer Olson, MDPediatric Endocrinology Physician1194739540
- Jennifer OlsonAddiction (Substance Use Disorder) Counselor1912367376
- Keith Olson, MFTMarriage & Family Therapist1891904413
- Marie OlsonStudent in an Organized Health Care Education/Training Program1114468295
- Matthew OlsonMarriage & Family Therapist1659291839
- Robert Olson, MDAnesthesiology Physician1902984792
- Alexandra OlveraBehavior Analyst1144724063
- Patricia OlveraMarriage & Family Therapist1578966792
- Arisbeet Olvera RamirezNurse's Aide1588583397
- Shireen OlyaieDoula1568296648
- Malia Omale, MDStudent in an Organized Health Care Education/Training Program1750140836
- Albertine Omani, M.D.Gynecology Physician1861552606
- Safia Omar, ASWSocial Worker1881875599
- Jasmine OmariPeer Specialist1427785674
- Tinuola OmoleBehavior Technician1639034382
- Egbebalakhamen Omoregie, NPNurse Practitioner1962015701
- Omoniyi Omotoso, M.D., M.P.H., FAAPPediatrics Physician1871875344
- Laura Onate SolisRehabilitation Practitioner1992650519
- Diana Ong, M.D.Student in an Organized Health Care Education/Training Program1649701608
- Himi OngMarriage & Family Therapist1841019544
- Jacqueline OngClinical Social Worker1649930082
- Lianne OngMarriage & Family Therapist1548516891
- Matthew Ong, MFTMarriage & Family Therapist1972736379
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.