2026 data CMS NPPES NUCC Taxonomy

Doctors in San Francisco, CA

Compiled from official public sources by the PlainDoctor editorial team.

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

36,790
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Student in an Organized Health Care Education/Training Program
Top specialty
3,511 providers
California
State
CA

36,790 healthcare providers across 20 specialties

San Francisco, California appears in the CMS National Plan and Provider Enumeration System with 36,790 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 San Francisco - 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 San Francisco 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 San Francisco is weighted toward Student in an Organized Health Care Education/Training Program (3,511 clinicians, followed by Marriage & Family Therapist with 2,160 and Counselor with 1,780). 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, San Francisco reports roughly 94.4 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, San Francisco ranks #3 of 805 cities tracked by provider count, accounting for 3.9% of the state's registered providers. Of California's most common specialties, Behavior Analyst is the most prominent one with no provider currently listing a San Francisco practice address, a coverage gap San Francisco patients typically fill by traveling to a larger nearby hub.

For San Francisco 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.

36,790
Providers
20
Specialties
#3
of 805 CA cities
3.9%
of CA providers
94.4
Per 100K (state)

Which specialties are most common in San Francisco

Student in an Organized Health Care Education/Training Program 3,511
Marriage & Family Therapist 2,160
Counselor 1,780
Community Health Worker 1,768
Internal Medicine Physician 1,533
Clinical Social Worker 1,173
Pharmacist 1,168
Mental Health Counselor 1,128
Behavior Technician 1,067
Addiction (Substance Use Disorder) Counselor 901
Registered Nurse 775
Clinical Psychologist 718
Specialist 710
Physical Therapist 692
Psychiatry Physician 680
General Practice Dentistry 651
Acupuncturist 619
Case Manager/Care Coordinator 600
Pediatrics Physician 563
Family Nurse Practitioner 552

Healthcare Providers (Page 93)

Name
Joella Castillo, D.C., C.C.S.P.
Sports Physician Chiropractor
Jorge Castillo
Counselor
Kaitlyn Castillo
Student in an Organized Health Care Education/Training Program
Karla Castillo, MFTI
Mental Health Counselor
Lindsay Castillo, B.A
Addiction (Substance Use Disorder) Counselor
Mariela Castillo
Counselor
Mayra Castillo
Specialist
Michael Castillo
Counselor
Nadean Castillo
Behavior Technician
Samuel Castillo
Community Health Worker
Shelsie Castillo
Student in an Organized Health Care Education/Training Program
Vanessa Castillo Lucas
Community Health Worker
Herbert Castillo Valladares
Dermatology Physician
Joseph Caston, M.D.
Psychiatry Physician
Teresa Caston
Counselor
Vincent Castoro
Physical Therapist
Jacob Castrejon, DC
Chiropractor
Madalene Castrillo
Community Health Worker
Fernando Castrillon, M.A.
Student in an Organized Health Care Education/Training Program
Aimee Castro, OTR/L
Occupational Therapist
Anthony Castro, DDS
Student in an Organized Health Care Education/Training Program
Bianca Castro, DPT
Physical Therapist
Carmen Castro, RDN
Registered Dietitian
Derek Castro
Massage Therapist
Estefany Castro
Behavior Technician
Estrellita Castro
Counselor
Gloria Castro
Psychologist
Hector Castro
Community Health Worker
Jade Castro, D.D.S.
Student in an Organized Health Care Education/Training Program
Jaylord Castro, ASW
School Social Worker
Jem Castro
Community Health Worker
Joanna Castro, OTR
Hand Occupational Therapist
Laura Castro, PSYD
Clinical Psychologist
Maria Castro, MD
Student in an Organized Health Care Education/Training Program
Mayan Castro
Counselor
Miriam Castro, M.D.
Anesthesiology Physician
Rebecca Castro
Specialist
Sarina Castro, PHD
Psychologist
Shaneerae Castro
Registered Nurse
Sheryl Castro
Registered Nurse
Sirena Castro
Behavior Technician
Zaldy Castro
Student in an Organized Health Care Education/Training Program
Carmen Castro-Bertera, NP-C
Family Nurse Practitioner
Diana Castro-Palmas
Other Technician
Lisabeth Castro-Smyth, LCSW
Counselor
Brandon Castronova, LCSW
Mental Health Counselor
Samantha Catalano
Registered Nurse
Michelle Cataldo-Swall, LCSW
Clinical Social Worker
Ellen Catalina, LCSW
Mental Health Counselor
Lisa Catalli, NURSE PRACTITIONER
Adult Health Nurse Practitioner

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 San Francisco, CA?
There are 36,790 registered healthcare providers in San Francisco, CA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in San Francisco?
The most common specialties in San Francisco are Student in an Organized Health Care Education/Training Program, Marriage & Family Therapist, Counselor, Community Health Worker, Internal Medicine Physician. Student in an Organized Health Care Education/Training Program has the most providers with 3,511.

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.