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 211 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
- Leonor MartinezSocial Worker1104260975
- Magdalene MartinezClinical Social Worker1255819959
- Maraya MartinezBehavior Technician1871423004
- Maria MartinezMental Health Counselor1760931968
- Maria Gabriela MartinezMental Health Counselor1841494135
- Martha Martinez, MPAMental Health Counselor1457640856
- Martin MartinezAddiction (Substance Use Disorder) Counselor1083804082
- Melissa MartinezClinical Social Worker1417566456
- Michelle MartinezCounselor1427111756
- Osvaldo Martinez, MSWSocial Worker1225955792
- Rafael MartinezMental Health Counselor1821347410
- Rebecca MartinezPeer Specialist1407608292
- Rosario Martinez, RNRegistered Nurse1215158183
- Samuel Martinez, LCSWSchool Social Worker1861612780
- Sandra MartinezMental Health Counselor1558540187
- Shene Martinez, CD, CPD, CLEC, CCCEDoula1972360261
- Alejandra Martinez AlonzoRehabilitation Practitioner1851090740
- Shaddai Martinez CuestasMarriage & Family Therapist1578396727
- Diana Martinez GarciaStudent in an Organized Health Care Education/Training Program1942783295
- Mariana Martinez MelgozaMarriage & Family Therapist1497328546
- Maritza Martinez MelgozaMarriage & Family Therapist1104499250
- Elizabeth Martinez Moreno, AMFTMarriage & Family Therapist1396357612
- Daisy Martinez Siles, MSN, RN, FNPRegistered Nurse1265120323
- Alvaro Martinez TorresSpeech-Language Pathologist1144171208
- Roseanne Martinez ToutjianMarriage & Family Therapist1336332543
- Evelyn Martinez-SalazarPediatrics Physician1710482880
- Amy MartiniPhysician Assistant1992155360
- Michael Martinucci, M.D.Diagnostic Radiology Physician1932142619
- Jennifer Martling, PTAPhysical Therapy Assistant1689081622
- Gabriella MartoranoAddiction (Substance Use Disorder) Counselor1922742634
- Norma Marubayashi Holloway, PHARMDPharmacist1003954751
- Nina Marucheck, AMFTMental Health Counselor1578704961
- Anne MarumahokoStudent in an Organized Health Care Education/Training Program1447081211
- Emiko MaruriPsychiatric/Mental Health Nurse Practitioner1356914816
- Caitlin MarvasoStudent in an Organized Health Care Education/Training Program1609399591
- Adam Marvin, M.D.Plastic Surgery within the Head & Neck (Otolaryngology) Physician1275528572
- Juliana Marx-Andler, LCSWClinical Social Worker1013293208
- Joseph Marzouk, M.D.Infectious Disease Physician1174636393
- Theodora MarzoukHome Health Aide1174045744
- Erika Masak-Goldman, LMFTMarriage & Family Therapist1639262033
- Monica MasakiBehavior Technician1609367234
- Brittany Ann MasangkayMarriage & Family Therapist1992355333
- Mathias Masem, M.D.Orthopaedic Hand Surgery Physician1508810938
- Joseph Mashinchi, P.A.Physician Assistant1184004913
- Nadia Mashni, LMFTMarriage & Family Therapist1255762357
- Selma Masic, M.D.Urology Physician1134486368
- Rhealeen MasilangLicensed Vocational Nurse1629420674
- Sirena Masket, OTROccupational Therapist1417757881
- Elana Maslow, MSWClinical Social Worker1073473997
- Mustafa Masody, RCPCertified Respiratory Therapist1457824187
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.