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 279)

Name
Ruby Rugama Gardea
Behavior Technician
Melinda Ruger
Peer Specialist
Timothy Rugnao
Behavior Analyst
Aimee Ruiz, L.AC.
Acupuncturist
Alex Ruiz
Rehabilitation Practitioner
Anabel Ruiz, MD
Student in an Organized Health Care Education/Training Program
Andrea Ruiz, RN
Registered Nurse
Deanna Ruiz
Behavior Technician
Gabriela Ruiz, LCSW
Clinical Social Worker
Jasmine Ruiz
Community Health Worker
Jessica Ruiz
Clinical Social Worker
Lauren Ruiz
Family Nurse Practitioner
Luis Ruiz
Adult Companion
Marisol Ruiz
Behavior Technician
Sarah Ruiz
Behavior Technician
Concepcion Ruiz Briseno
Mental Health Counselor
Ana Ruiz Hernandez
Social Worker
Norma Ruiz Iniguez
Family Nurse Practitioner
Gregory Rumore, MD
Anatomic Pathology Physician
Megan Rundel, PHD
Psychologist
Horia Rus, MD
Anesthesiology Physician
Brittany Rush, MD
Student in an Organized Health Care Education/Training Program
Jaslyn Rush
Behavior Technician
Karen Rush, PA
Physician Assistant
Rebecca Rush, RN
Community Health Registered Nurse
Linda Rushing, MPH, PMHNP
Psychiatric/Mental Health Nurse Practitioner
Annabelle Rushing Nelson
Case Manager/Care Coordinator
Evan Rusoja, MD, PHD
Student in an Organized Health Care Education/Training Program
Alicia Russell
Behavior Analyst
Jaqueese Russell
Community Health Worker
Jonathan Russell, MA
Counselor
Julie Russell
Behavior Technician
Natalie Russell
Physical Therapist
Rose Russell, DC
Chiropractor
Talaisa Russell
Adult Companion
Hassan Malik Russell Williams, APCC
Mental Health Counselor
Jennifer Russo, MS, LEP
School Psychologist
Jacquelyn Russum, RDN
Registered Dietitian
David Rustamzadeh, DDS, MSD
Periodontics
Emerson Rustand, MD
Student in an Organized Health Care Education/Training Program
Joanna Ruthenberg, M.D.
Pediatrics Physician
Chelsea Rutherford
Acupuncturist
Jasmine Rutherford
Counselor
Mary Rutherford, MD
Pediatric Emergency Medicine (Pediatrics) Physician
Yvonne Rutherford, MD
Pediatric Critical Care Medicine Physician
Laura Rutledge
Marriage & Family Therapist
David Rutschman-Byler, LPCC
Professional Counselor
Vanessa Ruvalcaba
Marriage & Family Therapist
Yesenia Ruvalcaba
Behavior Analyst
Casey Ryan
Community Health Worker

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.