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 15 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. Marie ClementeSocial Worker1962530816
  2. Jan Clements, APRNGerontology Nurse Practitioner1124449285
  3. Daniel Clevenger, DDSGeneral Practice Dentistry1215977210
  4. Ronald CliftonBehavior Technician1528727393
  5. Penelope ClizbePsychologist1912635137
  6. Siobhan ClohertyStudent in an Organized Health Care Education/Training Program1255057451
  7. Rachel Cloud-Holloway, M.S.W.Clinical Social Worker1669744736
  8. Kaitlyn ClouserBehavior Technician1659054195
  9. Victoria CobosBehavior Technician1447076773
  10. James CochranMental Health Counselor1780920090
  11. Jennifer Cody, FNP-CFamily Nurse Practitioner1124419742
  12. Cynthia Cohan, PTPediatric Physical Therapist1053725416
  13. Howard Cohen, M.D.Specialist1265448740
  14. Julie Cohen, PTPhysical Therapist1619032943
  15. Robert Cohen, MDHematology & Oncology Physician1073034765
  16. Judith Cohn, PTPhysical Therapist1982758496
  17. Andra CojocaruBehavior Analyst1407363807
  18. Isabella ColantonioBehavior Technician1205763059
  19. Alyssa ColeBehavior Technician1407584154
  20. Karen ColemanBehavior Analyst1023506565
  21. Kristy Coleman, LCSWClinical Social Worker1083382337
  22. Chloe Collart-MusselmanOther Technician1902305949
  23. Jaime CollinsMarriage & Family Therapist1033811872
  24. Kisha CollinsBehavior Technician1699431338
  25. Karen Collom, ODOptometrist1104887629
  26. Nicholas ColucciAddiction (Substance Use Disorder) Counselor1699124628
  27. Zachary Comtois, MSWClinical Social Worker1477695120
  28. Patrick Conard, NPNurse Practitioner1851138010
  29. Arianna ConceBehavior Technician1750119244
  30. Ofelia ConcepcionCase Manager/Care Coordinator1194250613
  31. Debra Conliffe, MFTMarriage & Family Therapist1316083702
  32. Brian Connelly, RNRegistered Nurse1316758014
  33. Brianna ConnorChiropractor1154295558
  34. Lucille Conti, LMFT MAMarriage & Family Therapist1063632271
  35. Anselmo ContrerasPeer Specialist1043195092
  36. Marisa ContrerasBehavior Technician1649942871
  37. Corina Contreras De GollerBehavior Technician1225987738
  38. Carmen Contreras-JeronimoBehavior Technician1396386470
  39. Christina CookSpeech-Language Pathologist1265914808
  40. Christine Cook, CMTMassage Therapist1407422900
  41. Roniqua Cook-GreeneMarriage & Family Therapist1063681146
  42. Reta Coolin, CMTMassage Therapist1275367146
  43. Gillyflower Coomes-Poultney, B.A.Behavior Technician1093284416
  44. Destini CooperBehavior Technician1861130502
  45. Nancy Cooper, LMFTMarriage & Family Therapist1043488752
  46. Roderick CooperOther Technician1346605938
  47. Coralia Cooper-FanucchiMarriage & Family Therapist1467879643
  48. Christine CoppolaRegistered Nurse1386775864
  49. Moby CoquillardMarriage & Family Therapist1508423872
  50. Stephanie CoramMental Health Counselor1134500069

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.