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 214 of 1,391.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in Los Angeles

  1. Students in training6,770
  2. Behavior Technician4,965
  3. Clinical Social Worker4,806
  4. Marriage & Family Therapist4,428
  5. Case Manager/Care Coordinator2,545
  6. Addiction (Substance Use Disorder) Counselor2,101
  7. Pharmacist1,765
  8. Mental Health Counselor1,643

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. Jason Chen, PT, DPTPhysical Therapist1053451609
  2. Jason ChenSurgery Physician1720425846
  3. Jason Chen, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1033515937
  4. Jc Chen, MDColon & Rectal Surgery Physician1710446760
  5. Jeffrey Chen, MDAnesthesiology Physician1518521715
  6. Jennifer Chen, PSY.D.Clinical Psychologist1881771558
  7. Jennifer Chen, D.D.S.General Practice Dentistry1124228465
  8. Jennifer Chen, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1619287166
  9. Jersey Chen, MDStudent in an Organized Health Care Education/Training Program1194665117
  10. Jiahua Chen, AMFTMarriage & Family Therapist1912614652
  11. Jian Chen, MDUrology Physician1093379182
  12. Jiaqi ChenStudent in an Organized Health Care Education/Training Program1194492355
  13. Jingwen ChenHome Health Aide1346969649
  14. Joanna Chen, PMHNPPsychiatric/Mental Health Nurse Practitioner1124847165
  15. Joanne ChenPsychologist1760779714
  16. Jocelyn Chen, PSYCounseling Psychologist1811165004
  17. Jocelyn Chen, DDSStudent in an Organized Health Care Education/Training Program1316745052
  18. John Chen, M.D.Diagnostic Radiology Physician1174639942
  19. John Chen, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1902993058
  20. Johnathan Chen, M.D.Diagnostic Radiology Physician1669798443
  21. Joseph ChenDiagnostic Radiology Physician1093343824
  22. Judy Chen, MDInternal Medicine Physician1548294846
  23. Julia Chen, MDStudent in an Organized Health Care Education/Training Program1801736210
  24. Justin Chen, DOStudent in an Organized Health Care Education/Training Program1629728696
  25. Kairi ChenStudent in an Organized Health Care Education/Training Program1033040159
  26. Kasha ChenStudent in an Organized Health Care Education/Training Program1194527754
  27. Katherine Chen, M.D.Internal Medicine Physician1275928525
  28. Katherine Chen, RDRegistered Dietitian1780135772
  29. Kelly ChenStudent in an Organized Health Care Education/Training Program1548655202
  30. Ken ChenClinical Child & Adolescent Psychologist1396031647
  31. Kenny Chen, MSED, MSN, FNP-BCFamily Nurse Practitioner1437566619
  32. Kevin Chen, MDStudent in an Organized Health Care Education/Training Program1255191524
  33. Kevin ChenPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1063265734
  34. Kevin ChenStudent in an Organized Health Care Education/Training Program1689461964
  35. Kyle Chen, MSN, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1154930774
  36. Leo Chen, MDNeurology Physician1598926255
  37. Lin ChenAnesthesiology Physician1518727791
  38. Lisa Chen, M.S. M.D.Acupuncturist1821398702
  39. Lishao ChenStudent in an Organized Health Care Education/Training Program1558179556
  40. Lixin Chen, RCPNeonatal/Pediatric Certified Respiratory Therapist1861976227
  41. Man-Chun Chen, M.D.Internal Medicine Physician1780909838
  42. Marianne ChenStudent in an Organized Health Care Education/Training Program1548695406
  43. Matthew ChenStudent in an Organized Health Care Education/Training Program1649071820
  44. Meiju ChenMarriage & Family Therapist1215337555
  45. Michael Chen, M.D.Orthopaedic Surgery Physician1588824700
  46. Michael Chen, M.D.Anesthesiology Physician1952533614
  47. Michael ChenStudent in an Organized Health Care Education/Training Program1215797865
  48. Michelle Chen, NP-CFamily Nurse Practitioner1235720475
  49. Michelle Chen, MDStudent in an Organized Health Care Education/Training Program1538929807
  50. Michelle Chen, MDStudent in an Organized Health Care Education/Training Program1710739339

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.