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 304 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. Francesca DiazClinical Social Worker1215710058
  2. Francisco DiazDay Training/Habilitation Specialist1952291668
  3. Gabriela Diaz, M.D.Family Medicine Physician1578835864
  4. Giovanna DiazRehabilitation Practitioner1306423736
  5. Gloria DiazBehavior Technician1265322655
  6. Grace Diaz, MSGenetic Counselor (M.S.)1497616460
  7. Graciela DiazSpeech-Language Pathologist1285286724
  8. Guillermo Diaz, M.D.Pediatrics Physician1134161144
  9. Harold DiazCase Manager/Care Coordinator1730742081
  10. Isabel DiazMental Health Counselor1174138978
  11. Isabela DiazCase Manager/Care Coordinator1174257935
  12. Jasmine Diaz, CTRSRecreation Therapist1952292617
  13. Jeannette DiazDental Hygienist1164987632
  14. Jennifer Diaz, LMTMassage Therapist1881035772
  15. Jennifer DiazAssistant Behavior Analyst1497272389
  16. Jennifer DiazDay Training/Habilitation Specialist1982414447
  17. Jennifer DiazStudent in an Organized Health Care Education/Training Program1720928567
  18. Jessica DiazDay Training/Habilitation Specialist1154899474
  19. Jesssica DiazRegistered Respiratory Therapist1194303313
  20. Joe Diaz, LPTLicensed Psychiatric Technician1750823910
  21. Jorge Diaz, MDEmergency Medicine Physician1346207693
  22. Jose DiazAmbulatory Women's Health Care Registered Nurse1689085714
  23. Joselyn Diaz, PA-CPhysician Assistant1508498148
  24. Julerie DiazRehabilitation Practitioner1376308437
  25. Julia DiazBehavior Technician1295656395
  26. Juliana DiazMarriage & Family Therapist1669007407
  27. Julie DiazDay Training/Habilitation Specialist1578480984
  28. Kai DiazAssistant Behavior Analyst1053197053
  29. Karen Diaz, ACSWMental Health Counselor1891246690
  30. Karen DiazBehavior Technician1134019524
  31. Karina Diaz, SUPPORT SPECIALISTDay Training/Habilitation Specialist1912625708
  32. Karloz DiazBehavior Technician1689469009
  33. Kathryn DiazMarriage & Family Therapist1336379379
  34. Kristal DiazBehavior Technician1083361786
  35. Laura Diaz, LCSWClinical Social Worker1265553804
  36. Laura DiazRehabilitation Practitioner1699031245
  37. Leoncio Diaz, M.D.Pulmonary Disease Physician1609511161
  38. Liana Diaz, LCSWClinical Social Worker1750646014
  39. Lourdes DiazRehabilitation Practitioner1992592679
  40. Lucas DiazBehavior Analyst1770439945
  41. Lucia DiazStudent in an Organized Health Care Education/Training Program1295518397
  42. Luis DiazCase Manager/Care Coordinator1386268761
  43. Luz DiazAmbulatory Care Registered Nurse1609398940
  44. Maribel Diaz, LCSWClinical Social Worker1811542541
  45. Marlon DiazCommunity Health Worker1811693260
  46. Martha Diaz, LMFTMarriage & Family Therapist1669189585
  47. Melina DiazCase Manager/Care Coordinator1073138087
  48. Melissa DiazBehavior Technician1396618187
  49. Miguel DiazRehabilitation Practitioner1912083478
  50. Natalia DiazStudent in an Organized Health Care Education/Training Program1528672060

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.