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 49 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. Melissa MontellanoBehavior Technician1063193605
  2. Daisy MontesaPharmacist1285823500
  3. Diana Montesdeoca, BEHAVIORAL THERAPISTBehavior Technician1235857160
  4. Julene Montgomery, CNCNutritionist1487062618
  5. Paris Montgomery, ODOptometrist1134737794
  6. Diego MontoyaBehavior Technician1659924009
  7. Melanie MontoyaBehavior Analyst1508216078
  8. Mitchell MontoyaMental Health Counselor1740699693
  9. Cassie MoodyBehavior Technician1750922621
  10. Tom Mooney, D.C.Chiropractor1265563555
  11. Candy MooreCase Management Registered Nurse1467065904
  12. David Moore, D.D.S.Endodontics1225204407
  13. Diana Moore, MA LMFT LPCCMarriage & Family Therapist1003195066
  14. Richard Moore, M.D.Internal Medicine Physician1992753040
  15. Victoria Moore, D.D.S.Endodontics1124117825
  16. Anissa Moorewilliams, CADC IAddiction (Substance Use Disorder) Counselor1861151649
  17. Poornima MoorthyBehavior Technician1477311173
  18. Josefina MoraBehavior Analyst1104464957
  19. Carl MoralesClinical Social Worker1730209867
  20. Carmatelentina MoralesAddiction (Substance Use Disorder) Counselor1376319988
  21. Henry MoralesDay Training/Habilitation Specialist1013843580
  22. Nadia MoralesMassage Therapist1033841648
  23. Roxana Morales, MS, AMFTMarriage & Family Therapist1134089956
  24. Stephanie MoralesSocial Worker1477788289
  25. Waleska MoralesBehavior Technician1730018748
  26. Maria Morales Corrales, RN, PHNRegistered Nurse1548009129
  27. Maria Moran, PSY.DPsychologist1457580649
  28. Ana MorenoBehavior Technician1114733680
  29. Celia MorenoPsychiatry Physician1891812053
  30. Jacqueline MorenoBehavior Technician1063007383
  31. Regina MorenoMarriage & Family Therapist1639299233
  32. Donald Morgan, PH.D.Audiologist1699852954
  33. Lamia MorganBehavior Technician1851069181
  34. Samantha Morgan, PSY.D.Clinical Psychologist1487172987
  35. Shannon MorganClinical Social Worker1326485632
  36. Megan Morley, DPTPhysical Therapist1598275380
  37. Delwin MorrisLicensed Vocational Nurse1548963218
  38. Jamie MorrisRegistered Dietitian1720954340
  39. Jennifer Morrison, LVNLicensed Vocational Nurse1982327185
  40. Melina MorrissetteBehavior Technician1760281760
  41. Scott Morrow, MD MPH MBAFamily Medicine Physician1548316342
  42. Mark Mosk, PHDClinical Psychologist1407362189
  43. Alyssa Moss, LCSWClinical Social Worker1285306498
  44. Kimia MostadamBehavior Technician1629834189
  45. Niloofar MotahariBehavior Technician1043071657
  46. Arwa Motiwala, PTPhysical Therapist1992174643
  47. Tamara MotleyBehavior Technician1497469902
  48. Sophie MouFamily Medicine Physician1720665292
  49. Sadie MouaBehavior Analyst1508353087
  50. Stacie MouraBehavior Technician1174399943

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.