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 55 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. Anna Payne, DPTPhysical Therapist1184099319
  2. Megan PayneOccupational Therapist1053849661
  3. Miranda PayneBehavior Technician1720612542
  4. Sonia Paz, LMFTMarriage & Family Therapist1467612705
  5. Edgardo Paz NahAddiction (Substance Use Disorder) Counselor1043879026
  6. Alcina PearceBehavior Technician1972153385
  7. Julie PearceRegistered Nurse1689966061
  8. Tatiana Pekker, MFTMarriage & Family Therapist1881958650
  9. Joseph Pelej, PA-CPhysician Assistant1356796239
  10. Brittany PelzerCase Management Registered Nurse1467310599
  11. Cassandra PenaMarriage & Family Therapist1538894662
  12. Krystle Tashanty PenaBehavior Analyst1790613230
  13. Naomi PenaBehavior Technician1679103667
  14. Savannah PenaBehavior Technician1154918985
  15. Vanessa Pena MoralesMental Health Counselor1922836014
  16. Maria PendseBehavior Analyst1043709728
  17. Sarah Penegor, RNPsychiatric/Mental Health Registered Nurse1275323214
  18. William Penrod, D.C.Chiropractor1588787998
  19. Erin Pensinger, MA, MFTMarriage & Family Therapist1316077639
  20. Katherine PerdiguerraRegistered Nurse1609151570
  21. Angelica PeredaDay Training/Habilitation Specialist1851162705
  22. Anankha PereiraAddiction (Substance Use Disorder) Counselor1942018205
  23. Anita Pereira, O.D.Optometrist1992852776
  24. Alejandra PerezBehavior Technician1073261152
  25. Alexandria Perez, MPAAddiction (Substance Use Disorder) Counselor1508406398
  26. Amanda Perez, LCSWClinical Social Worker1235067620
  27. Damaris PerezBehavior Analyst1861067258
  28. Edward Perez, AMFT, APCCMarriage & Family Therapist1043189954
  29. Elizabeth PerezBehavior Technician1699443770
  30. Elsie PerezBehavior Technician1518760743
  31. Jason Perez, CASAddiction (Substance Use Disorder) Counselor1316064207
  32. Jose Perez, PHYSICIAN ASSISTANTPhysician Assistant1336294651
  33. Leslie Perez, MS AND PPSSchool Psychologist1740104108
  34. Marta Perez, LCSWClinical Social Worker1275729071
  35. Rocio PerezBehavior Technician1952932444
  36. Thomas PerezBehavior Technician1669148698
  37. Ignacia Perez BottoMarriage & Family Therapist1154878494
  38. Nancy Perez VazquezCommunity Health Worker1821564899
  39. Ryan Perisho, MS, LMFTMarriage & Family Therapist1568844843
  40. Ashley Perkins-GentryBehavior Technician1568253060
  41. James Pertsch, M.D.Surgery of the Hand (Plastic Surgery) Physician1952340176
  42. Jennifer Perzichilli, L.AC.Acupuncturist1659712081
  43. Christopher PetersAddiction (Substance Use Disorder) Counselor1881981215
  44. Allison Petersen, M.S., MFTMarriage & Family Therapist1760699524
  45. Gretchen Petersen, R.N.Community Health Registered Nurse1992058614
  46. Mackenzie PetersonBehavior Analyst1629633565
  47. Tara Peterson, BCBABehavior Analyst1174927867
  48. Suzanne Petrocchi, LMFTMarriage & Family Therapist1255477956
  49. Frank PetropoulosBehavior Analyst1942743919
  50. Yashawn PettigrewBehavior Analyst1699227488

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.