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 21 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. Tiffany Embry-SaveaBehavior Technician1861272221
  2. Diana Emerson, N.PNurse Practitioner1194836494
  3. Randi EmmonsBehavior Technician1407315716
  4. Lily Enayati, MDInternal Medicine Physician1447322847
  5. Areli EncisoBehavior Technician1073459343
  6. Amanda Enderle, BCBABehavior Analyst1942791579
  7. Abbigail Endres, MFTMarriage & Family Therapist1033258132
  8. Laura Enfield, N.D., L.AC.Naturopath1285783308
  9. Viridiana Engberg, M.S., CCC-SLPSpeech-Language Pathologist1023748894
  10. Richard Lane EngelbrechtSocial Worker1124726575
  11. Andrew Engler, MDAllergy & Immunology (Internal Medicine) Physician1366400384
  12. Susan Enochs, PHDClinical Psychologist1932303625
  13. Isabella EnockBehavior Technician1396683165
  14. Virginia EnricoCase Manager/Care Coordinator1588096069
  15. Corina EnriquezSocial Worker1417377789
  16. Frances EplerNurse Practitioner1609922186
  17. Ayda Equbay, PHARMDPharmacist1508390121
  18. Dana EraiqatBehavior Technician1700662236
  19. Olivia Erickson, MDStudent in an Organized Health Care Education/Training Program1154262335
  20. Kimberly Erlich, RN CPNPPediatric Nurse Practitioner1104852532
  21. Anthony Errico, DPMFoot & Ankle Surgery Podiatrist1992873905
  22. Isabella ErvinBehavior Technician1760165203
  23. Johannah ErvinBehavior Technician1255917548
  24. Mayra EscarsegaBehavior Technician1831947407
  25. Leticia Escobar, DDSDentist1457422693
  26. Jessica EscobedoCounselor1821261785
  27. Elsie Escutia, N/ABehavior Technician1033880745
  28. Katherine EspanaStudent in an Organized Health Care Education/Training Program1912258781
  29. Carlos Espinoza VeraBehavior Technician1184412215
  30. Erika Esquivel, LMFTMarriage & Family Therapist1114211224
  31. Jeffrey Essex, CADPT16957Addiction (Substance Use Disorder) Counselor1811755531
  32. Kevin EstabilloBehavior Technician1609416577
  33. Samantha Anne EstilloreBehavior Technician1174092753
  34. Valerie EstiokoMental Health Occupational Therapist1043607393
  35. Kristine Estrada, LCSWClinical Social Worker1982047478
  36. Robin Estrada, PSY.D.Clinical Psychologist1417099276
  37. Sarah EstradaBehavior Technician1407347032
  38. Jovani Estrada AguilarBehavior Technician1841867835
  39. Liliana EstrellaBehavior Technician1023606183
  40. Chidimma EtchenwuneBehavior Technician1285200311
  41. Kenneth Etefia, M.D.Psychiatry Physician1346437787
  42. Arnell Etherington, PH.D.Psychologist1043336746
  43. Jonathan EtkinStudent in an Organized Health Care Education/Training Program1174976047
  44. Yarnel EvangelistaBehavior Technician1497300677
  45. Carly EvansCase Manager/Care Coordinator1942706296
  46. Tomoko EvansBehavior Technician1447181276
  47. Ellisa EverhartBehavior Technician1184464166
  48. Mari Evers, LCSW, QMRPClinical Social Worker1568700680
  49. Marcia Ewing, LCSWClinical Social Worker1629789888
  50. Celeste F LaingBehavior Technician1154005379

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.