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 59 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. Summer ArnoldBehavior Technician1528744018
  2. William Arnold, DDSStudent in an Organized Health Care Education/Training Program1477081537
  3. Janet Arnold-Clark, M.D.Pediatrics Physician1992833784
  4. Mitchell Arnovitz, MDPsychiatry Physician1568091601
  5. Marc Arnush, M.D., M.P.H.Occupational Medicine Physician1114125846
  6. Maxine Arnush, MDStudent in an Organized Health Care Education/Training Program1912847385
  7. Mayra Aroche, PA-CMedical Physician Assistant1326171273
  8. Yeselyn Aroche MolinaRehabilitation Practitioner1245601731
  9. Ari Arom, LA.CAcupuncturist1780192476
  10. Manju Aron, MDAnatomic Pathology & Clinical Pathology Physician1134384134
  11. Monish Aron, MDUrology Physician1033387345
  12. Ryan AroninInternal Medicine Physician1326486770
  13. Georgina Aronoff, RN, PHNCommunity Health Registered Nurse1609418136
  14. William Aronson, MDUrology Physician1639194095
  15. Yan Aronson, PHARM.D.Pharmacist1972954253
  16. Gitanjli Arora, M.D.Hospice and Palliative Medicine (Anesthesiology) Physician1982817177
  17. Krithika Arora, MDEmergency Medicine Physician1922701218
  18. Sanjay AroraEmergency Medicine Physician1730234162
  19. Cody Aros, MD, PHDPediatrics Physician1073253076
  20. Edward ArosAddiction (Substance Use Disorder) Counselor1497974018
  21. Giordano Arostegui, MDStudent in an Organized Health Care Education/Training Program1366022238
  22. Armen AroutiounianGeneral Practice Dentistry1982309613
  23. Milena AroutiounianStudent in an Organized Health Care Education/Training Program1326877556
  24. Oreoluwa Arowojolu, MDStudent in an Organized Health Care Education/Training Program1477484053
  25. Margerie Arraut, MDVascular & Interventional Radiology Physician1467042853
  26. John ArrePharmacist1487954475
  27. Celeste Arreaza, MSWClinical Social Worker1780507988
  28. Diane ArrecisBehavior Technician1780432807
  29. Lucia ArrecisBehavior Technician1013772995
  30. Adriana Arredondo, FNPFamily Nurse Practitioner1174894208
  31. Angel ArredondoCase Manager/Care Coordinator1336077858
  32. Annette ArredondoOccupational Therapist1528309036
  33. Emily ArredondoStudent in an Organized Health Care Education/Training Program1477439057
  34. Erika ArredondoCase Management Registered Nurse1144986258
  35. Grindelia ArredondoClinical Social Worker1467814772
  36. Kristell ArredondoClinical Social Worker1184093825
  37. Luisamarie Arredondo, MSW PPSCClinical Social Worker1467121038
  38. Lynnae ArredondoSocial Worker1447944574
  39. Marlena ArredondoClinical Social Worker1235027426
  40. Mary ArredondoCase Manager/Care Coordinator1336550144
  41. Monica ArredondoLicensed Vocational Nurse1205385275
  42. Nancy Arredondo, RNAmbulatory Care Registered Nurse1790207603
  43. Natalie Arredondo, BCBABehavior Analyst1013665504
  44. Rodolfo ArredondoBehavior Analyst1396674024
  45. Theresa Arredondo, MSWSocial Worker1831380369
  46. Alicia Arreguin, LCSWClinical Social Worker1598898025
  47. Natalie ArreguinBehavior Technician1033911607
  48. Abraham ArreolaBehavior Analyst1710772181
  49. Alma ArreolaLicensed Vocational Nurse1992374847
  50. Cesar ArreolaCase Manager/Care Coordinator1568709806

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.