NPPES file of Aug 9, 2026

Doctors and health care providers in San Diego, CA

52,937 individual NPPES records list a practice address in San Diego, 2nd of 812 California cities. The largest group is behavior technician: 8,079, 15% of the city's records, against 18% across California. Page 19 of 1,059.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in San Diego

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

San Diego in California

  • Rank in California2nd of 812 cities by records
  • Share of the state5.4% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups24.4% of all records
  • Behavior Technician rank2nd of the 10 California cities with the most

Compared with California as a whole, San Diego has 13.4× the state's share of independent duty corpsman records and 0.67× its share of general practice dentistry records.

Providers in San Diego, alphabetically

  1. Samantha Alexander, BCBABehavior Analyst1255871984
  2. Sophia AlexanderClinical Social Worker1083382378
  3. Sophia AlexanderMarriage & Family Therapist1437957933
  4. Thomas Alexander, M.D.Otolaryngology Physician1275696080
  5. Tracy Alexander, D.O.Family Medicine Physician1770777161
  6. Valerie Alexander, PH.D.Clinical Psychologist1659541993
  7. Wyeth AlexanderStudent in an Organized Health Care Education/Training Program1851929244
  8. Jadwiga Alexiewicz, MDNephrology Physician1760487458
  9. Megan Alexopulos Corrao, MAAssistant Behavior Analyst1093306920
  10. Alina Alfaro, PSY.D.Clinical Psychologist1942364179
  11. Amy Alfaro, LCSWClinical Social Worker1609326859
  12. Ana Maria Alfaro, LVNLicensed Vocational Nurse1093927816
  13. Andrea Alfaro, CRNACertified Registered Nurse Anesthetist1962603852
  14. Angelique AlfaroClinical Social Worker1104302132
  15. Lauren AlfaroCounselor1083958268
  16. Marlene Alfaro, MDStudent in an Organized Health Care Education/Training Program1669059820
  17. Rocio AlfaroCounselor1942529581
  18. Karyme Alfaro VillanesAssistant Behavior Analyst1518831429
  19. Danielle Alfego, MS, FNP-BCNurse Practitioner1689125965
  20. Ronda AlferosRegistered Respiratory Therapist1255810271
  21. Keith Alfieri, M.D.Orthopaedic Surgery Physician1922260512
  22. Diane Alfoldy, OTRLHand Occupational Therapist1174728240
  23. Alvin Alfonso, CRNACertified Registered Nurse Anesthetist1952653404
  24. Nina Isabel AlfonsoStudent in an Organized Health Care Education/Training Program1669354056
  25. Richard Rolland Alfonso, RNAdult Psychiatric/Mental Health Registered Nurse1013761691
  26. Sharynne Isys Alfonso, DDSDentist1124749692
  27. Zoe AlfonsoCase Manager/Care Coordinator1902521875
  28. Danielle Alfrey, PSY.D.Health Psychologist1851788962
  29. Michae AlgeoAddiction (Substance Use Disorder) Counselor1508270638
  30. Maher Alghabra, PHARMACISTPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1033443643
  31. Asma AlghamdiGeriatric Medicine (Family Medicine) Physician1316310840
  32. Safa AlgharbiPharmacist1609743392
  33. Samara AlghazaliGeneral Practice Dentistry1396675955
  34. Mary Algiers, RNRegistered Nurse1457895542
  35. Jeffrey Algra, M.D.Pediatric Rehabilitation Medicine Physician1457664518
  36. Maher Alhaja, PHARMDOncology Pharmacist1104515964
  37. Juan Carlo Alhambra, RDNRegistered Dietitian1407549868
  38. Sinan Alhamdi, D.M.D.Dentist1073914545
  39. Zainab AlhameediDriver1255195483
  40. Meshari AlharthiNeurology Physician1952920217
  41. Omar Alhassoon, PH.D.Clinical Neuropsychologist1275085789
  42. Yasmeen AlhomsyStudent in an Organized Health Care Education/Training Program1013545185
  43. Mohanad AlhumayedStudent in an Organized Health Care Education/Training Program1902322621
  44. Abdiasiis AliMental Health Counselor1063178986
  45. Alia Ali, MDFamily Medicine Physician1700375995
  46. Caisha AliBehavior Technician1518836626
  47. Fadumo AliBehavior Technician1760219869
  48. Ghada Ali, RDRegistered Dietitian1710512827
  49. Jihan AliBehavior Technician1780153544
  50. Maymun AliBehavior Technician1548004104

The largest California cities

  1. Los Angeles69,537
  2. San Francisco38,143
  3. Sacramento33,083
  4. San Jose20,925
  5. Fresno19,440

All of California →

How to read this directory

San Diego, California appears in the CMS National Plan and Provider Enumeration System with 52,937 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 Diego - 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 Diego 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 Diego is weighted toward Behavior Technician (8,079 clinicians, followed by Marriage & Family Therapist with 2,738 and Student in an Organized Health Care Education/Training Program with 2,098). 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 Diego reports roughly 135.9 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 Diego 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 Diego, CA?

There are 52,937 registered healthcare providers in San Diego, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in San Diego?

The most common specialties in San Diego are Behavior Technician, Marriage & Family Therapist, Student in an Organized Health Care Education/Training Program, Clinical Social Worker, Mental Health Counselor. Behavior Technician has the most providers with 8,079.

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.