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 60 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. Leah Robertson, BSN,RN,CEFMCase Management Registered Nurse1861351777
  2. Darryl RobinsonMental Health Counselor1487154399
  3. Kimberly RobinsonMental Health Counselor1033458914
  4. Carlos RochaCommunity Health Worker1114281193
  5. Isis RochaBehavior Technician1649115395
  6. Mariana Rocha, MSW, ASWClinical Social Worker1598942153
  7. Gemma RocheSpecialist1790256550
  8. Stanley Rockman, M.D.Gastroenterology Physician1447318829
  9. Emily Rodda, PNPPediatric Nurse Practitioner1619300423
  10. Rodney RoddewigMental Health Counselor1831644624
  11. Gabrielle RodgersBehavior Analyst1699131805
  12. Jordan RodriguesMarriage & Family Therapist1477477347
  13. Amanda RodriguezBehavior Analyst1619536679
  14. Babyleen Rodriguez, LVNLicensed Vocational Nurse1568187250
  15. Claudia RodriguezBehavior Technician1710639976
  16. Cristela RodriguezMarriage & Family Therapist1851777650
  17. Douglas RodriguezBehavior Technician1578180808
  18. Estefanie RodriguezBehavior Technician1457900136
  19. Fionna RodriguezMental Health Counselor1558661355
  20. Gyno RodriguezBehavior Analyst1205372810
  21. Helen Rodriguez, RN MSN CNSChild & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist1942464300
  22. Larena RodriguezAddiction (Substance Use Disorder) Counselor1912833286
  23. Melissa Rodriguez, AMFTMarriage & Family Therapist1821341199
  24. Natali RodriguezMental Health Counselor1164034732
  25. Kemberly Rodriguez HernandezBehavior Analyst1184111791
  26. Scarlett Rodriguez MartinezCommunity Health Worker1326698796
  27. Austin Rodriguez MeyerCommunity Health Worker1881431906
  28. Iris Rodriguez-Costello, LMFTMarriage & Family Therapist1033310867
  29. Elizabeth Rody, MDPsychiatry Physician1093930109
  30. Kathryn Rogers, MFTMental Health Counselor1205970688
  31. Alison RoggeRehabilitation Practitioner1508759069
  32. Janelle RohlMental Health Counselor1457684037
  33. Celeste RojasBehavior Technician1306795083
  34. Juan Roldan HernandezAddiction (Substance Use Disorder) Counselor1699532549
  35. Ashley Roliz-ChenBehavior Technician1548817554
  36. Kenneth RollandiCommunity Health Worker1720446321
  37. Claudia Romero, MFTMarriage & Family Therapist1619140498
  38. Kimberli RomeroBehavior Technician1851258438
  39. Suleima Romero GuzmanBehavior Analyst1932697901
  40. Isabel Romo RamirezSocial Worker1225791916
  41. Dhavina RondarisMarriage & Family Therapist1467348011
  42. Denise RosPhysician Assistant1093351751
  43. Myrta RosaSchool Psychologist1922921873
  44. Yasmin RosalesMental Health Counselor1376986596
  45. Jessica RosasBehavior Technician1972453447
  46. Leila RosasBehavior Technician1851956155
  47. Andrei Roschkowsky, D.D.S.General Practice Dentistry1326102906
  48. Ember Rose, RNPsychiatric/Mental Health Registered Nurse1295218394
  49. Jonathon Rose, PH.D.Adult Development & Aging Psychologist1154382380
  50. Linda RoseMental Health Counselor1639611379

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.