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 63 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. Amy SargentMarriage & Family Therapist1194842294
  2. Bernard Sarkis, DMDDentist1770100372
  3. Breanna SarriaBehavior Technician1982554796
  4. Beverly Sarver, MDOphthalmology Physician1396752812
  5. Brianna SaucedaBehavior Technician1740111715
  6. Tylonnie Saucer, AMFT, APCCMarriage & Family Therapist1356856405
  7. Jane SaundersRegistered Respiratory Therapist1225862469
  8. Elizabeth SavareseStudent in an Organized Health Care Education/Training Program1396393922
  9. Brenda Ann SavelliBehavior Technician1205542891
  10. Kira Savin, AU.D.Audiologist1669814794
  11. Garima Saxena, M.A.Behavior Analyst1033653076
  12. Maram SayagePhysician Assistant1336873835
  13. Sarah Schaafsma, LMFTMarriage & Family Therapist1063831337
  14. Sarah SchachterStudent in an Organized Health Care Education/Training Program1316196652
  15. Alyvia SchafferBehavior Technician1851875017
  16. Robyn Schapiro, ATCAthletic Trainer1558583484
  17. Sarah Schaub, MA, LCMHCMental Health Counselor1619556412
  18. Paul Schauer, D.D.S.General Practice Dentistry1881600021
  19. Donald Schaukowitch, N.P.Family Nurse Practitioner1144345414
  20. Ronald Scheinbach, DDSGeneral Practice Dentistry1821160680
  21. Brendan Scherer, M.D.Psychiatry Physician1598930208
  22. Judith Schiffner, M.D.Dermatology Physician1013072610
  23. Timothy Schipke, MFTIStudent in an Organized Health Care Education/Training Program1245589027
  24. Lauren Schliesmann, MFTIMarriage & Family Therapist1881957520
  25. Hilary Schlossman, LCSWClinical Social Worker1073903852
  26. Abby SchmidtOrthotic Fitter1316135239
  27. Lucy Schmidt, MDDermatology Physician1194789628
  28. Renee Schneider, PH.D.Psychologist1285904979
  29. Tobin Schneider, MDSurgery Physician1881762714
  30. Richard Schram, D.D.S.General Practice Dentistry1356322291
  31. Kristen SchulzBehavior Technician1942853676
  32. Melissa Schulz, MS, BCBABehavior Analyst1437413226
  33. Alan Schwartz, MDClinical Cardiac Electrophysiology Physician1427019769
  34. Kenneth Schwartz, M.D.Endocrinology, Diabetes & Metabolism Physician1285971531
  35. Marcia Schwartz, PH.D.Psychologist1912038993
  36. Jill Schwartz-Chevlin, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1295767911
  37. Emily Schwarz, MDStudent in an Organized Health Care Education/Training Program1740121391
  38. Jessica Sclafani, PA-CPhysician Assistant1912359282
  39. Theresa Scopazzi, DDSGeneral Practice Dentistry1326318197
  40. Christopher Scott, D.C.Chiropractor1912927187
  41. Lauren ScottNurse Practitioner1376186403
  42. Nadja Scott, BCBABehavior Analyst1851003644
  43. Rahnayjah ScottBehavior Technician1265392088
  44. Christine SeagrenAddiction (Substance Use Disorder) Counselor1306235163
  45. Makaela SeamsterBehavior Technician1326878794
  46. Katriona Seevers, C.D.Doula1861790289
  47. Mary Seevers, M.A., M.F.T.Marriage & Family Therapist1619175668
  48. Carlos SeguraBehavior Technician1932618899
  49. David Seidner, LMFTMarriage & Family Therapist1912177353
  50. Camila SeimBehavior Technician1336785161

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.