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 61 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. Nancy Rose, RNRegistered Nurse1356520753
  2. Nika RosenCase Manager/Care Coordinator1295229250
  3. Kenneth Rosenbaum, MDPediatrics Physician1407922404
  4. John RosenbergAddiction (Substance Use Disorder) Counselor1952280604
  5. Ben Rosenstein, D.C.Chiropractor1952751554
  6. Marty Rosier, RN, PHN, FNP-CFamily Nurse Practitioner1013231422
  7. Jenna RossMental Health Counselor1194157446
  8. Summer RossBehavior Technician1164374757
  9. Mitchell Roth, D.C.Chiropractor1275644429
  10. Sharon Roth, SHARON ROTH, BSN,MAAdult Psychiatric/Mental Health Registered Nurse1275736860
  11. Kennedy RothenbuescherMental Health Counselor1013480367
  12. Frank RuanoAddiction (Substance Use Disorder) Counselor1831605294
  13. Ana RubioCommunity Health Worker1427948959
  14. Dalenna RuelasMental Health Counselor1386830164
  15. Joel RuelasBehavior Technician1124806005
  16. Alexander RuffBehavior Technician1114579711
  17. Esther RuizCommunity Health Worker1811250087
  18. Nicolaz RuizBehavior Technician1861262925
  19. Veena Rushi, PHARM.D.Pharmacist1790816403
  20. Jacqueline RutgersCase Manager/Care Coordinator1891324703
  21. John Rutherglen, PTPhysical Therapist1215921424
  22. Kelly Ryan, IBCLCLactation Consultant (Non-RN)1528543337
  23. Dhalia SabehCounselor1134269798
  24. Fiona Sablo, RN,BSN,PHNRegistered Nurse1063769032
  25. Jaimee SachdevBehavior Technician1073097671
  26. Matthew Sachs, MS, RN, AGPCNP-BCPrimary Care Nurse Practitioner1114408176
  27. Alexandria SaeluaStudent in an Organized Health Care Education/Training Program1518613769
  28. Julie SaephanBehavior Analyst1760938237
  29. Julie SaephanBehavior Technician1093473951
  30. Jocelyn Sagastume, RBTBehavior Technician1629626387
  31. Shanel SahdeoBehavior Technician1649156803
  32. Ravneet SahiMental Health Counselor1275098576
  33. Alyssa Sahu, PAPhysician Assistant1154100568
  34. Asban SaibanBehavior Technician1255282612
  35. Reena SainiBehavior Technician1689241424
  36. Paul Saito, M.A.Counselor1013146976
  37. Dana Sakal, C.D.Doula1093156986
  38. Jinny Sakumoto, RNRegistered Nurse1073792206
  39. Claudia SaladaCounselor1700120169
  40. Ramy Salah, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1396122388
  41. Mahlegha SalarilakPharmacist1487511432
  42. Jose SalazarBehavior Technician1649763566
  43. Katherine SalazarBehavior Technician1336094416
  44. Kristen SalazarAddiction (Substance Use Disorder) Counselor1801743281
  45. Tafisi Salazar-SuafaiAddiction (Substance Use Disorder) Counselor1699334540
  46. Silvia SalcedoCommunity Health Worker1831378348
  47. Melissa SalemMarriage & Family Therapist1346024627
  48. Vincent SalgadoPhysical Therapist1609509470
  49. Marlene SalinasCommunity Health Worker1326757527
  50. Rosalba SalinasBehavior Technician1689490617

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.