2026 data CMS NPPES NUCC Taxonomy

Doctors in San Jose, CA

Compiled from official public sources by the PlainDoctor editorial team.

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

20,410
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
3,805 providers
California
State
CA

20,410 healthcare providers across 20 specialties

San Jose, California appears in the CMS National Plan and Provider Enumeration System with 20,410 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 Jose - 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 Jose 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 Jose is weighted toward Behavior Technician (3,805 clinicians, followed by Mental Health Counselor with 1,367 and Case Manager/Care Coordinator with 1,111). 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 Jose reports roughly 52.4 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 Jose ranks #5 of 805 cities tracked by provider count, accounting for 2.2% of the state's registered providers.

For San Jose 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.

20,410
Providers
20
Specialties
#5
of 805 CA cities
2.2%
of CA providers
52.4
Per 100K (state)

Which specialties are most common in San Jose

Behavior Technician 3,805
Mental Health Counselor 1,367
Case Manager/Care Coordinator 1,111
Marriage & Family Therapist 1,090
Pharmacist 893
Student in an Organized Health Care Education/Training Program 770
Counselor 638
General Practice Dentistry 571
Clinical Social Worker 558
Internal Medicine Physician 472
Dentist 438
Acupuncturist 427
Physical Therapist 384
Behavior Analyst 380
Addiction (Substance Use Disorder) Counselor 374
Chiropractor 367
Social Worker 342
Rehabilitation Practitioner 309
Speech-Language Pathologist 276
Family Medicine Physician 245

Healthcare Providers (Page 50)

Name
Diron Cassidy, M.P.T.
Physical Therapist
Christina Castagnetto, SLP
Speech-Language Pathologist
Adam Castaneda
Case Manager/Care Coordinator
Alex Castaneda
Marriage & Family Therapist
Angelica Castaneda
Behavior Technician
Carlos Castaneda
Behavior Technician
Daisy Castaneda
Mental Health Counselor
Dalia Castaneda
Counselor
Daniela Castaneda
Counselor
Dayana Castaneda
Counselor
Elizabeth Castaneda
Mental Health Counselor
Fabian Castaneda, B.S.
Counselor
Francisco Castaneda
Case Manager/Care Coordinator
Leon Castaneda, MD
Internal Medicine Physician
Maria Castaneda, MA
Marriage & Family Therapist
Martha Castaneda
Case Manager/Care Coordinator
Nghia Castaneda
Behavior Analyst
Juan Pedro Castaneda Chavez
Behavior Technician
Genesis Castaneda Munoz
Behavior Technician
Flor Castaneda Villalobos
Behavior Technician
Liliana Castanon
Behavior Technician
Nayeli Castellano Chavez
Behavior Technician
Cassandra Castellanos
Behavior Technician
Erick Castellanos, MD
Student in an Organized Health Care Education/Training Program
Gabriela Castellanos
Behavior Technician
Guadalue Castellanos
Behavior Technician
Christian Castellon
Case Manager/Care Coordinator
Veronica Castellon
Counselor
Esther Castellon Quezadas
Case Manager/Care Coordinator
Diane Castignani, FNP
Nurse Practitioner
Preciosa Castillejo, NP
Family Nurse Practitioner
Adriana Castillo
Student in an Organized Health Care Education/Training Program
Aksonin Castillo, D.D.S.
Dentist
Alejandra Castillo
Behavior Technician
Ashley Castillo, B.A. PSYCHOLOGY
Counselor
Bridget Castillo
Counselor
Cristina Castillo
Mental Health Counselor
Dinah Castillo
Behavior Technician
Elizabeth Castillo
School Social Worker
Elizabeth Castillo
Behavior Technician
Frank Castillo, DDS
Dentist
Frank Castillo, D.D.S.
Dentist
Henry Castillo
Behavior Technician
Iriscarolina Castillo, EDD, LMFT
Mental Health Counselor
Jasmin Castillo
Behavior Technician
Kerry Castillo
Behavior Technician
Mandi Castillo
Behavior Technician
Marianne Castillo
Case Manager/Care Coordinator
Lily Castillon, RN
Ambulatory Care Registered Nurse
Melissa Castle
Behavior Technician

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 Jose, CA?
There are 20,410 registered healthcare providers in San Jose, CA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in San Jose?
The most common specialties in San Jose are Behavior Technician, Mental Health Counselor, Case Manager/Care Coordinator, Marriage & Family Therapist, Pharmacist. Behavior Technician has the most providers with 3,805.

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.