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 292 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. Margaret Fiorelli, NPFamily Nurse Practitioner1659343770
  2. Francis Fiorenza, BCBABehavior Analyst1396355319
  3. James FiorilloMental Health Counselor1902541147
  4. Jasmine FioriniBehavior Analyst1154284479
  5. Yaron Fireizen, M.DPediatric Pulmonology Physician1699123927
  6. Emily Fireman, MDInternal Medicine Physician1861923724
  7. Catherine Firestein, MD, MPHHospitalist Physician1427348382
  8. Gary Firestein, M.D.Internal Medicine Physician1699790808
  9. Caroline FirestoneBehavior Technician1265304315
  10. Michelle FirestoneClinical Psychologist1114687803
  11. Susana FirmanCase Manager/Care Coordinator1225252992
  12. Nilofar Firooznia, MDDiagnostic Radiology Physician1962521419
  13. Brian First, M.D.Internal Medicine Physician1770531816
  14. Howard First, DDSDentist1427191238
  15. Lindy First, P.T.Physical Therapist1568660645
  16. Andrew Firtel, DDSDentist1023021094
  17. Robyn Firtel, MFTMarriage & Family Therapist1437394046
  18. Natasha Fischang, AU.D.Audiologist1477855989
  19. Bonnie Fischer, D.C.Chiropractor1245470020
  20. Erin FischerMassage Therapist1730525817
  21. Gene Fischer, LCSW, LMFTClinical Social Worker1396124004
  22. Jacki FischerBehavior Technician1679157036
  23. Kadie FischerStudent in an Organized Health Care Education/Training Program1922998178
  24. Kathleen Fischer, MDPublic Health & General Preventive Medicine Physician1245465996
  25. Lily FischerBehavior Technician1437038080
  26. Marlowe Fischer, M.A., CCC-SLPSpeech-Language Pathologist1114222965
  27. Marnie Fischer, R.D.Metabolic Nutrition Registered Dietitian1952497265
  28. Meara FischerBehavior Technician1457215170
  29. Michael FischerStudent in an Organized Health Care Education/Training Program1255210001
  30. Paul FischerIndependent Duty Corpsman1942982178
  31. Ronald Fischer, MDInternal Medicine Physician1083735641
  32. Timothy Fischer, MS, ATCAthletic Trainer1093421158
  33. William FischerBehavior Technician1295333599
  34. Peter Fischetti, MFTMarriage & Family Therapist1760619712
  35. Kira FishCase Manager/Care Coordinator1235775735
  36. Madison Fish, MDObstetrics & Gynecology Physician1760879431
  37. Samuel Fish, L.ACAcupuncturist1184077562
  38. Lennea Fish-PenningtonBehavior Technician1851931224
  39. Benjamin Fishburne, MFTMarriage & Family Therapist1154614535
  40. Richard FishellPhysical Therapist1518532340
  41. Amy Fisher, BSN, RNRegistered Nurse1235790122
  42. Ashlee Fisher, LMFTMarriage & Family Therapist1639424740
  43. Barbara Fisher, N.P.Gerontology Nurse Practitioner1962421669
  44. Beverly FisherAddiction (Substance Use Disorder) Counselor1346691326
  45. Brock Fisher, M.D.Pediatric Anesthesiology Physician1144256470
  46. Carolyn Fisher, LMFTMarriage & Family Therapist1194379347
  47. Cassandra FisherMental Health Counselor1033702741
  48. Christine Fisher, LCSWClinical Social Worker1154760197
  49. Dan Fisher, PHARM.D.Pharmacist1396986774
  50. David Fisher, HM1Independent Duty Corpsman1467785907

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.