NPPES file of Aug 9, 2026

Doctors and health care providers in Los Angeles, CA

69,537 individual NPPES records list a practice address in Los Angeles, 1st of 812 California cities. The largest group is students in training: 6,770, 10% of the city's records, against 4% across California. Page 303 of 1,391.

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

The 8 largest groups in Los Angeles

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

Los Angeles in California

  • Rank in California1st of 812 cities by records
  • Share of the state7.2% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups23.8% of all records
  • Students in training rank1st of the 10 California cities with the most

Compared with California as a whole, Los Angeles has 2.3× the state's share of student in an organized health care education/training program records and 0.40× its share of behavior technician records.

Providers in Los Angeles, alphabetically

  1. Allison Diamant, MDInternal Medicine Physician1467487181
  2. Alexandra Diamond, D.O.Pediatrics Physician1295189421
  3. Daniel Diamond, M.D.Pediatrics Physician1770942831
  4. Dickson Diamond, M.D.Psychiatry Physician1437594785
  5. Garry Diamond, MFTMarriage & Family Therapist1205011350
  6. Jane Diamond, LCSWClinical Social Worker1851546030
  7. Jason Diamond, MDPlastic Surgery Within the Head and Neck (Plastic Surgery) Physician1306981519
  8. Julia Diamond, RDRegistered Dietitian1639007412
  9. Lacee Diamond, MS, ATC, MBAAthletic Trainer1922544675
  10. Michael Diamond, PHDPsychologist1952166050
  11. Stephen Diamond, PH.D.Clinical Psychologist1275639213
  12. Saeed Dianat, M.D.Diagnostic Radiology Physician1164841649
  13. Danilo Diangkinay, DDSDentist1083385355
  14. Arusyak DiaryanFamily Nurse Practitioner1689547812
  15. Alma DiasBehavior Technician1073463287
  16. Anna Dias, L.AC.Acupuncturist1962745620
  17. Abigail DiazMental Health Counselor1750267662
  18. Adrian DiazCase Manager/Care Coordinator1184874430
  19. Adriana DiazClinical Social Worker1447509450
  20. Aimee Diaz, PT, DPT, SCS, ATCPhysical Therapist1285915280
  21. Alexandra Diaz, NPFamily Nurse Practitioner1699226878
  22. Ana DiazBehavior Technician1275451296
  23. Anabel DiazLicensed Psychiatric Technician1255474185
  24. Anais DiazBehavior Technician1619555687
  25. Andrea DiazBehavior Technician1427804822
  26. Andrea DiazBehavior Technician1992632772
  27. Antonio Diaz, RPHPharmacist1225380371
  28. Aracely DiazRehabilitation Practitioner1811780356
  29. Ashley DiazRehabilitation Practitioner1528933421
  30. Carmen Diaz, PA-CMedical Physician Assistant1588939466
  31. Catherine DiazCase Manager/Care Coordinator1114395571
  32. Christian DiazSocial Worker1356758056
  33. Christian Diaz, B.A. SOCIAL WORKStudent in an Organized Health Care Education/Training Program1043942964
  34. Christian DiazClinical Social Worker1881471266
  35. Christina DiazCase Manager/Care Coordinator1487501383
  36. Cindy DiazBehavior Technician1912621954
  37. Cindy Diaz, ODOptometrist1285502096
  38. Claudia DiazSocial Worker1528258506
  39. Corina Diaz, ACSWClinical Social Worker1811664469
  40. David DiazDriver1225891161
  41. Devlin DiazClinical Social Worker1932929643
  42. Dominique DiazDental Hygienist1831596816
  43. Elias DiazMarriage & Family Therapist1871845370
  44. Elina Diaz, APRNFamily Nurse Practitioner1871204412
  45. Elizabeth DiazBehavior Technician1033860945
  46. Elizabeth DiazCase Manager/Care Coordinator1225729361
  47. Estefani DiazBehavior Technician1245017581
  48. Evelyn DiazBehavior Technician1952181075
  49. Evilet DiazClinical Social Worker1952139594
  50. Frances Diaz, PSY.D.Clinical Psychologist1265565675

The largest California cities

  1. San Diego52,937
  2. San Francisco38,143
  3. Sacramento33,083
  4. San Jose20,925
  5. Fresno19,440

All of California →

How to read this directory

Los Angeles, California appears in the CMS National Plan and Provider Enumeration System with 69,537 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 Los Angeles - 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 Los Angeles 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 Los Angeles is weighted toward Student in an Organized Health Care Education/Training Program (6,770 clinicians, followed by Behavior Technician with 4,965 and Clinical Social Worker with 4,806). 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, Los Angeles reports roughly 178.5 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.

Of California's most common specialties, Behavior Analyst is the most prominent one with no provider currently listing a Los Angeles practice address, a coverage gap Los Angeles patients typically fill by traveling to a larger nearby hub.

For Los Angeles 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 Los Angeles, CA?

There are 69,537 registered healthcare providers in Los Angeles, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Los Angeles?

The most common specialties in Los Angeles are Student in an Organized Health Care Education/Training Program, Behavior Technician, Clinical Social Worker, Marriage & Family Therapist, Case Manager/Care Coordinator. Student in an Organized Health Care Education/Training Program has the most providers with 6,770.

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.