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 2 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. Hala Ain ShaibehPharmacist1013572718
  2. Masooma AkbarCase Manager/Care Coordinator1710605779
  3. Ligia Aker, CNSNutritionist1467394601
  4. Kathleen Akiyama, M.D.Psychiatry Physician1194886879
  5. Megan Al Jamea, M.A., BCBABehavior Analyst1205297926
  6. Carmela Al-NagdawiBehavior Analyst1992176002
  7. Ashley Alakija-Deneuz, RNHospice Registered Nurse1730005349
  8. Rosa Alamo RamosBehavior Technician1467107755
  9. Adriana AlarconBehavior Technician1740860055
  10. Indiana Albanes, BASocial Worker1457509291
  11. Alisa Albee, LCSWClinical Social Worker1194507624
  12. Denise Albert, M.D.Psychiatry Physician1043399462
  13. Alexa Alborzi, DDS, MDS, INC.Orthodontics and Dentofacial Orthopedics Dentistry1063593390
  14. Sali AldabbaghMental Health Counselor1922433119
  15. Maria AldanaBehavior Technician1942991625
  16. Kai AldenMental Health Counselor1083159081
  17. Hamed Alereza, D.C.Chiropractor1750522140
  18. Victoria AlexanderBehavior Technician1811869092
  19. Aabid AliBehavior Technician1164121646
  20. Maha AliBehavior Technician1063977478
  21. Taima AljamalBehavior Technician1871166025
  22. Lisa Allaire, D.C.Rehabilitation Chiropractor1891855821
  23. Santiago Allende, PSYDClinical Psychologist1093330417
  24. Lauren Allerhand, PSY.D.Clinical Psychologist1346763067
  25. Michele AlmeidaBehavior Technician1760369177
  26. Brita Almog, MDPediatrics Physician1033402847
  27. Alessia Almuflihi, NPPsychiatric/Mental Health Nurse Practitioner1861905184
  28. Beverly Alonzo LopezBehavior Technician1396615191
  29. Annina Altomari, LMFTMarriage & Family Therapist1285069070
  30. Amanda AlvarezCommunity Health Worker1427559244
  31. Isabel AlvarezBehavior Technician1629547690
  32. Judith AlvarezCounselor1588169445
  33. Rosario AlvarezDay Training/Habilitation Specialist1457628950
  34. Treisy AlvarezBehavior Analyst1689110959
  35. Sofia Alvarez RoblesCommunity Health Worker1053172502
  36. Veronica Alvarez-Javonillo, RNRegistered Nurse1184969214
  37. Christian AlzubiMarriage & Family Therapist1861735409
  38. Lais Ama, LICENSED HADHearing Instrument Specialist1104129089
  39. Jose AmayaBehavior Technician1508441189
  40. Avanti Ambekar, M.D.Diagnostic Radiology Physician1356447627
  41. Chelsee AmezcuaBehavior Technician1679207351
  42. Eliseo Amezcua, MAAddiction (Substance Use Disorder) Counselor1033345244
  43. Chandel Jomei AnaenBehavior Technician1205650447
  44. Jannet AnayaCommunity Health Worker1942621115
  45. Ritchelle AndalBehavior Technician1760082804
  46. Amber Anderson, ACSWClinical Social Worker1194126599
  47. Calle AndersonBehavior Technician1538945514
  48. John Anderson, MDObstetrics & Gynecology Physician1013082429
  49. Karen Anderson, PTPhysical Therapist1023162534
  50. Katherine AndersonBehavior Technician1528529484

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.