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 185 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. Kori Ann Cash, AGACNP-BCAcute Care Nurse Practitioner1275141657
  2. Lisa Cash, LMFTMarriage & Family Therapist1881895225
  3. Stephanie CashSpeech-Language Pathologist1245183359
  4. Troy Cashatt, MDFamily Medicine Physician1811948508
  5. Michelle Cashman, LCSWClinical Social Worker1215184825
  6. Andrea CasianoBehavior Technician1649116716
  7. Alejandra Casillas, M.D.Internal Medicine Physician1205026721
  8. Alexis CasillasCase Manager/Care Coordinator1851940415
  9. Alma CasillasCase Manager/Care Coordinator1609360296
  10. Ana Casillas, RNAmbulatory Care Registered Nurse1952822322
  11. Carlos CasillasMental Health Counselor1508461567
  12. Consuelo Casillas, MDFamily Medicine Physician1639227531
  13. Erika CasillasLicensed Vocational Nurse1538601208
  14. Jacqueline Casillas, M.D., M.S.H.SPediatric Hematology & Oncology Physician1790707065
  15. Jewel Casillas, OTD, OTR/LOccupational Therapist1558127258
  16. Jonathan CasillasMedical Physician Assistant1114150927
  17. Moira Casillas, MDInternal Medicine Physician1851450415
  18. Rocio CasillasClinical Social Worker1407373616
  19. Marcos Casillas GarciaBehavior Technician1295616746
  20. Gabriela Casillas LiceagaCase Manager/Care Coordinator1134695356
  21. Ariana Casillas MartinStudent in an Organized Health Care Education/Training Program1457245136
  22. Sandra Casillas MunozStudent in an Organized Health Care Education/Training Program1609750603
  23. Katrina Casimiro, NP, MSNPrimary Care Nurse Practitioner1629319017
  24. Nicole CasimiroMarriage & Family Therapist1942759097
  25. Nicholas Caskey, PH.D.Clinical Psychologist1114962305
  26. Nina CaslavkaMental Health Counselor1447757000
  27. Gregory Cason, PH.D.Health Psychologist1619180049
  28. Marcola CasonMarriage & Family Therapist1669885042
  29. Phyllis Cason, RN, MS, FNP-CFamily Nurse Practitioner1235348046
  30. Michelle Casparimarquit, MA, MFTMarriage & Family Therapist1952079261
  31. Matt Casper, MFTMarriage & Family Therapist1275771149
  32. William Casper, MAMental Health Counselor1669567285
  33. Tyrell CassanovaBehavior Technician1902539588
  34. Kayna Cassard, LMFTMarriage & Family Therapist1871975979
  35. David Cassarino, MD, PHDAnatomic Pathology & Clinical Pathology Physician1326122730
  36. James Cassero, L.M.F.T.Marriage & Family Therapist1275938060
  37. Cassandre Casseus, CRNACertified Registered Nurse Anesthetist1154572139
  38. Tamaa Cassey, APCCMental Health Counselor1386479178
  39. Caryn Cassidy, M.D.Pediatrics Physician1245780782
  40. John Cassidy, M.D.Cardiovascular Disease Physician1710029822
  41. Lynae Cassidy, RDNRegistered Dietitian1447976048
  42. M CassidyCase Manager/Care Coordinator1043641533
  43. Sally Cassidy, LCSWClinical Social Worker1407929102
  44. Shea CassidyGeneral Care Certified Respiratory Therapist1477977320
  45. Emily CassimBehavior Technician1972267334
  46. Carley Cassity, NPNurse Practitioner1588162556
  47. Michael CastagnettoMarriage & Family Therapist1114552205
  48. Alexandra Castaneda, MA, AMFT #138017Marriage & Family Therapist1467968073
  49. Andrea CastanedaSpeech-Language Assistant1134950090
  50. Antonio CastanedaGynecologic Oncology Physician1447618376

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.