2026 data CMS NPPES NUCC Taxonomy

Doctors in Oakland, CA

Compiled from official public sources by the PlainDoctor editorial team.

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

18,012
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Student in an Organized Health Care Education/Training Program
Top specialty
1,521 providers
California
State
CA

18,012 healthcare providers across 20 specialties

Oakland, California appears in the CMS National Plan and Provider Enumeration System with 18,012 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 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 2023 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 Student in an Organized Health Care Education/Training Program (1,521 clinicians, followed by Marriage & Family Therapist with 1,290 and Mental Health Counselor with 1,250). 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 46.2 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, Oakland ranks #7 of 805 cities tracked by provider count, accounting for 1.9% of the state's registered providers. 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, 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.

18,012
Providers
20
Specialties
#7
of 805 CA cities
1.9%
of CA providers
46.2
Per 100K (state)

Which specialties are most common in Oakland

Student in an Organized Health Care Education/Training Program 1,521
Marriage & Family Therapist 1,290
Mental Health Counselor 1,250
Counselor 996
Behavior Technician 976
Clinical Social Worker 949
Community Health Worker 571
Case Manager/Care Coordinator 512
Registered Nurse 492
Internal Medicine Physician 442
Social Worker 422
Pharmacist 410
Behavior Analyst 385
Addiction (Substance Use Disorder) Counselor 370
Pediatrics Physician 331
Physical Therapist 325
Clinical Psychologist 310
Psychologist 246
Acupuncturist 232
Specialist 210

Healthcare Providers (Page 203)

Name
Laurel Marks
Clinical Social Worker
Naomi Marks, M.D.
Emergency Medicine Physician
Diana Marks Williams
Counselor
Anvitha Marlapati, BCAT
Behavior Technician
Shyanne Marlett
Behavior Technician
Alyson Marlow
Clinical Social Worker
Denise Marlow-Lehrman, D.C.
Chiropractor
Alexis Marona
Behavior Technician
Theresa Marquardt, ASW
Clinical Social Worker
Jessica Marques, NPF
Family Nurse Practitioner
Stephanie Marquet, MD
Hospitalist Physician
Blanca Marquez, LCSW
Clinical Social Worker
Elisa Marquez, BA
Case Manager/Care Coordinator
Graciela Marquez
Peer Specialist
Isabel Marquez
Day Training/Habilitation Specialist
Kimberly Marquez
Mental Health Counselor
Leia Marquez
Addiction (Substance Use Disorder) Counselor
Lorena Marquez
Marriage & Family Therapist
Rosemary Marquez
Counselor
Jose Marquez Cuevas
Specialist
Joseph Marquis, MD
Internal Medicine Physician
Ken Marriner, M.D.
Student in an Organized Health Care Education/Training Program
Yesenia Marsala
Addiction (Substance Use Disorder) Counselor
Roger Marsden, PH.D MFT
Mental Health Counselor
Jermaine Marsh
Mental Health Counselor
Vernita Marsh, PH.D.
Clinical Psychologist
Alyssa Marshall
Day Training/Habilitation Specialist
Anne Marshall, PH.D.
Clinical Psychologist
Ashli Marshall
Mental Health Counselor
Cassandra Marshall
Behavior Technician
Haley Marshall
Behavior Technician
Jennifer Marshall
Rehabilitation Practitioner
Kaki Marshall, B.S.
Counselor
Phillip Marshall
Addiction (Substance Use Disorder) Counselor
Rhonda Marshall
Addiction (Substance Use Disorder) Counselor
Hana Marsheck, DPT
Physical Therapist
Susanna Marshland, LCSW
Clinical Social Worker
Stephanie Marsili
Clinical Social Worker
Jean Marsters, M.D.
Psychiatry Physician
Page Martell, BA
Mental Health Counselor
Jennifer Martelle Tu, MD, PH.D.
Neurology with Special Qualifications in Child Neurology Physician
Alycia Martens
Counselor
Lyndi Martens
Behavior Analyst
Rachel Marterre, MA, LMFT
Marriage & Family Therapist
Samuel Marthinsen, DO
General Practice Physician
Alea Martin
Behavior Technician
Belinda Martin, LMFT
Marriage & Family Therapist
Carly Martin
Clinical Social Worker
Coelise Martin
Child & Adolescent Psychiatric/Mental Health Registered Nurse
David Martin
Student in an Organized Health Care Education/Training Program

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 Oakland, CA?
There are 18,012 registered healthcare providers in Oakland, CA, covering 20 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 Student in an Organized Health Care Education/Training Program, Marriage & Family Therapist, Mental Health Counselor, Counselor, Behavior Technician. Student in an Organized Health Care Education/Training Program has the most providers with 1,521.

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 PlainDoctor editorial team.