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 71 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. Marianne TranBehavior Technician1063246973
  2. Christopher TraylorMarriage & Family Therapist1366560252
  3. Melanie Trelles, L.AC.Acupuncturist1588270946
  4. Pamela Trent, DNP, FNP-BCFamily Nurse Practitioner1568020469
  5. Johanna Triana LozanoBehavior Technician1144947342
  6. Chau Trieu, PHARMDPharmacist1427611276
  7. Madison TrimbleBehavior Technician1326700725
  8. Naomi TringaliBehavior Analyst1972050714
  9. Mary TrinhBehavior Technician1871306480
  10. Jennifer Trizuto, P.T.Physical Therapist1194831107
  11. Melissa Troche, CADC IPeer Specialist1376212241
  12. Stephanie Troia, BCBABehavior Analyst1912573429
  13. Karen TrujilloBehavior Technician1952227845
  14. Karina TrujilloBehavior Technician1790613412
  15. Yadira TrujilloBehavior Technician1750934667
  16. Trent TrumpBehavior Technician1851951594
  17. Alex Tsai, DOEmergency Medicine Physician1114504321
  18. Jonathan Chun Ming TsangGeneral Practice Physician1225563299
  19. Merissa Tsang, L.AC, DIPL. OMAcupuncturist1710112883
  20. Jessy Tseng, D.D.S.Endodontics1083703557
  21. Tze-Foun Tsiang, DDS,MSDGeneral Practice Dentistry1780801886
  22. George Tsiaprailis, D.C.Chiropractor1851422497
  23. Corinna Tsieh, NPNurse Practitioner1528771854
  24. Alexandra Tsitsiringos, TRAINEEStudent in an Organized Health Care Education/Training Program1891538518
  25. Mark Tsuei, D.D.S.General Practice Dentistry1821225038
  26. Eri Tsujii, LCSWClinical Social Worker1033428792
  27. Steven Tsurudome, D.D.S., M.S.Periodontics1629283049
  28. Tiffany Tsurudome, D.D.S.General Practice Dentistry1326117763
  29. Ben Tsutaoka, PHARMD, DABATPharmacist1245184019
  30. Katarina Tu, D.D.S.General Practice Dentistry1023427606
  31. Christina TufonoAddiction (Substance Use Disorder) Counselor1912374323
  32. Sirisha Tummala, MDHematology & Oncology Physician1851755151
  33. Spencer Tung, MDFamily Medicine Physician1487234860
  34. Theodora TurkAddiction (Substance Use Disorder) Counselor1245629773
  35. Marina Turner, P.T.Physical Therapist1902829690
  36. Richard Turner, M.D.Emergency Medicine Physician1568485092
  37. Shayne TutorBehavior Analyst1689177321
  38. Melissa Tyler, LAMFTMarriage & Family Therapist1861998957
  39. Dan Tzuang, MDPsychiatry Physician1114040789
  40. Francine UbaBehavior Technician1336010990
  41. Jocelin UgaldeBehavior Technician1336077965
  42. Chika UgbajaFamily Nurse Practitioner1104040005
  43. Soo Uhm, PHDClinical Psychologist1265962146
  44. Meghan Ullrich, NBC-HWCNutritionist1275361073
  45. Norman UnderwoodBehavior Analyst1598252025
  46. Emily Uphoff, FNPFamily Nurse Practitioner1386159135
  47. Lucius Upshaw, PA-CPhysician Assistant1932350790
  48. Jessica Urbina, BSWBehavior Analyst1114375375
  49. Sylvia Urbina, D.D.S.General Practice Dentistry1992835128
  50. Alana Ure, MSSpeech-Language Pathologist1437769890

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.