2026 data CMS NPPES NUCC Taxonomy

Doctors in San Ramon, CA

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

2,178
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Behavior Technician
Top specialty
880 providers
California
State
CA

2,178 healthcare providers across 20 specialties

San Ramon, California appears in the CMS National Plan and Provider Enumeration System with 2,178 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 Ramon - 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 Ramon 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 Ramon is weighted toward Behavior Technician (880 clinicians, followed by Behavior Analyst with 174 and Marriage & Family Therapist with 75). 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 Ramon reports roughly 5.6 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.

Within California, San Ramon ranks #97 of 805 cities tracked by provider count, accounting for 0.2% of the state's registered providers. Of California's most common specialties, Addiction (Substance Use Disorder) Counselor is the most prominent one with no provider currently listing a San Ramon practice address, a coverage gap San Ramon patients typically fill by traveling to a larger nearby hub.

For San Ramon 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.

2,178
Providers
20
Specialties
#97
of 805 CA cities
0.2%
of CA providers
5.6
Per 100K (state)

Which specialties are most common in San Ramon

Behavior Technician 880
Behavior Analyst 174
Marriage & Family Therapist 75
Pharmacist 68
Speech-Language Pathologist 60
General Practice Dentistry 55
Dentist 50
Physical Therapist 47
Chiropractor 42
Registered Nurse 40
Family Medicine Physician 31
Student in an Organized Health Care Education/Training Program 29
Family Nurse Practitioner 28
Mental Health Counselor 28
Internal Medicine Physician 27
Occupational Therapist 26
Clinical Social Worker 25
Physician Assistant 22
Pediatrics Physician 22
Optometrist 21

Healthcare Providers (Page 7)

Name
Natalie Caro, M.S. CCC-SLP
Speech-Language Pathologist
Tiffany Carrasco
Behavior Technician
Samantha Carreno Maldonado
Behavior Technician
Emily Carrillo
Adult Companion
Joseph Carrington
Mental Health Counselor
Clarissa Carrizosa
Behavior Technician
David Cartago, D.D.S.
General Practice Dentistry
Sarah Carter
Professional Counselor
Connor Carwin, BCBA, LBA
Behavior Analyst
Margaret Cary, PT
Physical Therapist
Alina Casillas
Behavior Technician
Kimberly Casillas
Behavior Technician
Alyssa Casimiro, LCSW
Clinical Social Worker
Rebecca Cassin, PT, DPT
Physical Therapist
Elina Castaneda
Behavior Technician
Elizabeth Castaneda
Physical Therapist
Monette Castaneda
Behavior Technician
Jessica Castellanos, M.A.
Behavior Analyst
Jose Castellanos
Behavior Analyst
Nutce Castelluccio
Behavior Technician
Gabriela Castillo
Behavior Technician
Miguel Castillo, D.C.
Chiropractor
Teresa Castillo Espinoza
Behavior Technician
Ashley Catalan
Behavior Technician
Amanda Ceci, BA, RBT
Behavior Technician
Evy Cedano Diaz
Behavior Technician
Cynthia Ceja
Behavior Technician
Jimena Ceja-Sandoval
Behavior Technician
Karin Celosse, PSYD
Clinical Psychologist
Vanessa Cerda, OD
Student in an Organized Health Care Education/Training Program
Ariana Cerda Sandoval
Behavior Technician
Alondra Cervantes
Behavior Technician
Emily Cervantes
Behavior Technician
Nina Cha
Behavior Technician
Charissa Chaban, MPT
Physical Therapist
Laxmi Challa, M.D
Family Medicine Physician
Gladys Chan, BCBA
Behavior Analyst
Jeffrey Chan
Behavior Technician
Justin Chan
Pharmacist
Minnie Chan, OTR/L
Occupational Therapist
Sabrina Chan, DDS
Dentist
Willie Chan
Behavior Technician
Anikeith Chand
Behavior Technician
Elizabeth Chandler
Behavior Analyst
Shui Kwan Chandrasekaran
Behavior Analyst
Archana Chang
Primary Care Nurse Practitioner
Joyce Chang
Behavior Analyst
Kelvin Chang, PA-C
Physician Assistant
Roger Chang, DDS
Dentist
Rya Chang
Physical Therapist

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 Ramon, CA?
There are 2,178 registered healthcare providers in San Ramon, CA, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in San Ramon?
The most common specialties in San Ramon are Behavior Technician, Behavior Analyst, Marriage & Family Therapist, Pharmacist, Speech-Language Pathologist. Behavior Technician has the most providers with 880.

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 editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.