NPPES file of Aug 9, 2026

Doctors and health care providers in San Mateo, CA

3,909 individual NPPES records list a practice address in San Mateo, 54th of 812 California cities. The largest group is behavior technician: 848, 22% of the city's records, against 18% across California. Page 14 of 79.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

San Mateo in California

  • Rank in California54th of 812 cities by records
  • Share of the state0.4% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups35.7% of all records

Compared with California as a whole, San Mateo has 2.5× the state's share of psychiatry physician records and 0.57× its share of family medicine physician records.

Providers in San Mateo, alphabetically

  1. Annie Chonghee Choi, B.SBehavior Technician1477253524
  2. Catherine Choi, DDSDentist1770473571
  3. Clara Choi, M.D., PH.D.Radiation Oncology Physician1225236649
  4. Robert Choi, D.D.S.General Practice Dentistry1063626091
  5. Samuel Choi, D.M.D.Dentist1194727875
  6. Kapil Chopra, M.D.Psychiatry Physician1912169137
  7. Kokil Chopra, MDPsychiatry Physician1831350677
  8. Kristen Chou, DNP, FNP-BCNurse Practitioner1083126064
  9. Vivian Chou, L.AC.,Acupuncturist1891871281
  10. Kratika ChoudharyMental Health Counselor1861949299
  11. Chelsea ChowBehavior Analyst1851888515
  12. Howard Chow, MDPediatrics Physician1083603393
  13. John Chow, M.D.Legal Medicine1215984513
  14. Raymond ChowClinical Exercise Physiologist1487313136
  15. Eric Choy, PT, DPT, MS, CSCSPhysical Therapist1295458594
  16. Ryan ChoyBehavior Technician1265991301
  17. Leah Christensen, LCSWClinical Social Worker1215234497
  18. Evelyn ChuSpeech-Language Pathologist1205317658
  19. Hung-Ming Chu, M.D.Psychiatry Physician1790834174
  20. Jeanyan ChuBehavior Technician1669143400
  21. Jessica Chu, PAPhysician Assistant1306257167
  22. Jessica ChuPharmacist1376912329
  23. Robert Chu, D.P.T.Sports Medicine (Physical Medicine & Rehabilitation) Physician1285401505
  24. Ronni ChuMarriage & Family Therapist1538926118
  25. Serena Chu, PT, DPTPhysical Therapist1346607322
  26. Shirley ChuClinical Social Worker1104927151
  27. Ramoncito ChuaBehavior Technician1437716578
  28. Yvette Chua, D.D.SGeneral Practice Dentistry1699797126
  29. Amy ChuangEmergency Medicine Physician1538746995
  30. Samuel ChuangBehavior Analyst1104364215
  31. Carie Chui, M.D.Dermatology Physician1346341252
  32. Stephanie ChunPharmacist1689239451
  33. Andrew ChungMental Health Counselor1730870064
  34. Hilda ChungPharmacist1679856090
  35. Rebecca ChurchCase Manager/Care Coordinator1760953996
  36. Maryann Chwalek, SLPSpeech-Language Pathologist1063977650
  37. Richard Cicinelli, M.D.Psychiatry Physician1902026305
  38. Noah CildirBehavior Technician1992595870
  39. Adrianna Cimera, MASTER OF SCIENCEBehavior Analyst1780059733
  40. Amanda Cinquegrano, FNP-CFamily Nurse Practitioner1548711633
  41. Amber Cioffi, A.S.W.Mental Health Counselor1477963759
  42. Luis Ciprez, LCSWClinical Social Worker1104957661
  43. Helen CitrinMarriage & Family Therapist1932882180
  44. Frances ClaessonBehavior Technician1487332441
  45. Kaitlyn ClarkStudent in an Organized Health Care Education/Training Program1073393625
  46. Tiffany ClarkeDoula1073380564
  47. Keith Clausen, PH.D.Marriage & Family Therapist1578792081
  48. Trecher ClayMental Health Counselor1144768797
  49. Renee Cleek, DPTPhysical Therapist1558645275
  50. David Clemens, CATCAddiction (Substance Use Disorder) Counselor1922395219

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

How to read this directory

San Mateo, California appears in the CMS National Plan and Provider Enumeration System with 3,909 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in San Mateo - 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 Mateo 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 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in San Mateo is weighted toward Behavior Technician (848 clinicians, followed by Marriage & Family Therapist with 348 and Behavior Analyst with 200). 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 Mateo reports roughly 10 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.

For San Mateo patients, this directory is most useful as a starting shortlist. 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; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in San Mateo, CA?

There are 3,909 registered healthcare providers in San Mateo, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in San Mateo?

The most common specialties in San Mateo are Behavior Technician, Marriage & Family Therapist, Behavior Analyst, Mental Health Counselor, Clinical Social Worker. Behavior Technician has the most providers with 848.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.