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 5 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. Iuliana BakirLicensed Practical Nurse1871032508
  2. Marie BalajadiaBehavior Technician1902732134
  3. Piter BalayanBehavior Technician1457836173
  4. Amanda Balch, WHNPNurse Practitioner1760775639
  5. Donna Baldassare, DOHospice and Palliative Medicine (Internal Medicine) Physician1962662478
  6. Tabitha Baldwin, M.S. LMFT, LPCCMarriage & Family Therapist1174723597
  7. Lois Balster, M.D.Pediatrics Physician1568578474
  8. Darli Baltazar-LorenzoBehavior Technician1528925526
  9. Dinah Jael BaluyotBehavior Technician1629738273
  10. Krysta Banazek, MFTMarriage & Family Therapist1760592901
  11. Daniel BancheroAddiction (Substance Use Disorder) Counselor1184220857
  12. Mario BandesMarriage & Family Therapist1508113887
  13. Lorita Bank, PH.D.Clinical Psychologist1609991918
  14. Katherine Banks, RNRegistered Nurse1790602993
  15. Yuqing BaoBehavior Technician1184346629
  16. Greg BaquiaxStudent in an Organized Health Care Education/Training Program1497399653
  17. Maytal Bar-ShirBehavior Analyst1841844065
  18. Veronica BarajasClinical Social Worker1003123258
  19. Noah BarakiBehavior Technician1699349258
  20. Jacqueline Baras Shreibati, M.D.Cardiovascular Disease Physician1780997064
  21. Vanessa BarbachanoBehavior Technician1659848620
  22. Jessica Barbato, MFTMarriage & Family Therapist1073863049
  23. Cecilia Barberena, LCSWClinical Social Worker1629133129
  24. Julia BarbozaSocial Worker1669773727
  25. Bibian Bard, BCBABehavior Analyst1821417783
  26. Sean Bardsley, D.D.S.General Practice Dentistry1164529012
  27. Magdalena BarnesMarriage & Family Therapist1881413490
  28. Kaitlyn BarnettBehavior Technician1801480934
  29. Cherise Barney, BABehavior Technician1720550122
  30. Steven Barney, LMFTMarriage & Family Therapist1679597843
  31. Anthony BaroneAddiction (Substance Use Disorder) Counselor1962395335
  32. Ronald Barr, DDSGeneral Practice Dentistry1386858504
  33. Jessica Barra, FNP-CFamily Nurse Practitioner1114406519
  34. Elisabeth BarraganSocial Worker1366844201
  35. Francisco BarraganBehavior Technician1457828303
  36. Ivanna BarraganBehavior Technician1093676751
  37. Carolina BarrazaMarriage & Family Therapist1467312561
  38. Alison BarreraCommunity Health Worker1265088603
  39. Deja BarrettBehavior Technician1326906488
  40. Karina Teresa Barretto, MDPsychiatry Physician1639815350
  41. Verna Barrientos, LCSWClinical Social Worker1659816650
  42. Sarah Barrios-PerezBehavior Technician1366104895
  43. Ashley BartMental Health Counselor1740513068
  44. Marguerite Bartels, MFTMarriage & Family Therapist1619907565
  45. Sharon Bartels, RN,FNPFamily Nurse Practitioner1437299765
  46. Damian BartonMarriage & Family Therapist1710523238
  47. Kiya BartonBehavior Technician1902755747
  48. Sara Barulich, LMFTMarriage & Family Therapist1528618576
  49. Nasrin Bashiri, MDPsychiatry Physician1700974920
  50. Sara BasslerPsychiatry Physician1255522785

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.