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 32 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. Krista Hirasuna, DDS, MSOrthodontics and Dentofacial Orthopedics Dentistry1578809844
  2. Dona Hirschfield-WhiteMental Health Counselor1831348044
  3. Elizabeth Hisashima, FNPNurse Practitioner1821556762
  4. Dominic Ho, M.D.Legal Medicine1881610582
  5. Julia HoGeneral Practice Dentistry1497529853
  6. Lisa HoBehavior Technician1205501491
  7. Mimi HoBehavior Technician1689210130
  8. Preston HoPharmacist1275161267
  9. Sharon Ho, ODOptometrist1952415879
  10. Long HoangSocial Worker1316769417
  11. Forouzandeh HodaCase Manager/Care Coordinator1326664301
  12. Olisha Hodges, LCSWClinical Social Worker1598200776
  13. Sydney Hoff, OTD, OTR/LMental Health Occupational Therapist1154870517
  14. Corinna HoflandBehavior Technician1386419695
  15. Amy HofmannSpecialist1790349090
  16. Kaeleen Holbrooks, RNRegistered Nurse1700513827
  17. Charles HollandDriver1477265890
  18. Shelly Holland, MFTMarriage & Family Therapist1447100037
  19. Taylor HollandBehavior Technician1922808948
  20. Michelle HollingtonStudent in an Organized Health Care Education/Training Program1477887297
  21. William HolmanAddiction (Substance Use Disorder) Counselor1659095198
  22. Alexandria Holman BentancourtStudent in an Organized Health Care Education/Training Program1457804528
  23. Rhiana HoltBehavior Technician1417758087
  24. Deborah HoltzclawBehavior Analyst1700242765
  25. Clarissa Hom, MPH, RDPediatric Nutrition Registered Dietitian1831961226
  26. Miriam HomeMental Health Counselor1497122477
  27. Michelle HonakerHearing Instrument Specialist1356757207
  28. Helen Hong, DMDDentist1952508392
  29. Hoyman Hong, M.D.Pain Medicine (Physical Medicine & Rehabilitation) Physician1124120845
  30. Cora Hoover, M.D.Family Medicine Physician1518025865
  31. Robert HooverCommunity Health Worker1861896144
  32. Michelle Horan, M.A.Counselor1144355306
  33. Timothy HorganMarriage & Family Therapist1326163460
  34. Gary Horne, PHARMACISTPharmacist1245413178
  35. Maitte Horta-Garcia, A.A.Behavior Analyst1639534050
  36. Jason Hott, M.D.Psychiatry Physician1851586507
  37. Jennifer HoustonBehavior Technician1700369584
  38. Mark Howard, PH.D.Psychologist1346309440
  39. Tamera HowardBehavior Technician1376215509
  40. Michele HowesBehavior Technician1063069474
  41. William Hroziencik, D.C.Chiropractor1245560739
  42. Linda Hsiao, LCSClinical Social Worker1871210328
  43. Cheng HsuPeer Specialist1992248884
  44. Les Hsu, DDSDentist1992925903
  45. Wen-Lin Hsu, DDSGeneral Practice Dentistry1558484501
  46. Cong Hu, LAC OMDAcupuncturist1568639110
  47. Thanh HuaMental Health Counselor1538505995
  48. Danielle HuacujaBehavior Technician1063915007
  49. Alexa HuamanBehavior Technician1720946494
  50. Anita Huang, L.ACAcupuncturist1912252974

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.