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 78 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. Brianna Young, MAMarriage & Family Therapist1114633765
  2. Dely YoungDentist1548306905
  3. Rhia Farrah YoungMarriage & Family Therapist1396231643
  4. Richard Young, MDFamily Medicine Physician1629042437
  5. Stanley Young, MDDermatology Physician1902025190
  6. Yili Young, O.D.Optometrist1841398674
  7. Elizabeth Youngerman, D.C.Chiropractor1538236021
  8. Ben Yount, DDSGeneral Practice Dentistry1598068066
  9. Vivian Yousef, DPTPhysical Therapist1114572690
  10. Kassaundra Yow, RNCase Management Registered Nurse1699633792
  11. Therese Yrani, MFTIMarriage & Family Therapist1407209729
  12. Angel YuBehavior Technician1780367086
  13. Caroline YuSocial Worker1497503387
  14. Emily YuObstetrics & Gynecology Physician1578776639
  15. Kenneth Yu, M.D.Emergency Medicine Physician1194996108
  16. Laura Yu, LMFTMarriage & Family Therapist1043694730
  17. Drew YurkovMental Health Counselor1225181456
  18. Niloofar Zabihi, PHARM.DPharmacist1679066047
  19. Jacklyn ZacariasBehavior Technician1225733983
  20. Samirah ZadaStudent in an Organized Health Care Education/Training Program1356031314
  21. Farah Zaidi, M.D.General Practice Physician1760828990
  22. Ansam ZakeryRegistered Respiratory Therapist1902361215
  23. Alvaro ZambranoBehavior Technician1083285811
  24. Jannelle ZamoraBehavior Analyst1679188734
  25. Jessica ZamoraMarriage & Family Therapist1558621102
  26. Yecenia Zamora, RNRegistered Nurse1356772123
  27. Kerry Zandee Van Rilland, MDDermatology Physician1982136586
  28. Carly Zankman, PSYDClinical Psychologist1295341899
  29. Michelle ZapataBehavior Technician1174348866
  30. Maribel ZapienAddiction (Substance Use Disorder) Counselor1902375579
  31. Alyssa Zaragoza, LVNLicensed Vocational Nurse1093521775
  32. Rebeca ZaragozaClinical Social Worker1306723879
  33. Angelica ZarateBehavior Technician1366013146
  34. Erika Zarate, RN, PHNRegistered Nurse1194957381
  35. Christal ZavalaBehavior Technician1386113272
  36. Leonela ZavalzaDay Training/Habilitation Specialist1588587885
  37. Jacqueline Zayac, P.T.Physical Therapist1568486991
  38. Edward Zeff, M.D.Psychiatry Physician1548302508
  39. Anabel ZepedaCommunity Health Worker1306215827
  40. Jessica ZepedaBehavior Technician1538761507
  41. Anita ZertucheAddiction (Substance Use Disorder) Counselor1659639565
  42. June Zhang, MDAllergy & Immunology Physician1174787170
  43. Stephanie Zhang, DDSDentist1750488615
  44. Tao Tao Zhang, D.D.S.General Practice Dentistry1558659276
  45. Wendy ZhangBehavior Technician1336737147
  46. Yijuan ZhangAcupuncturist1528497914
  47. Yubo Zhang, AC 13984Acupuncturist1306138961
  48. Diana ZhengAcupuncturist1184340572
  49. Erika ZhengSchool Counselor1386598241
  50. Andy ZhouMental Health Counselor1851990469

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.