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 215 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. Nicole ChenPharmacist1457189714
  2. Nicole ChenBehavior Technician1982577763
  3. Norman ChenPediatric Dentistry1376084137
  4. Nuo ChenStudent in an Organized Health Care Education/Training Program1972480093
  5. Pang Chen, PHARMDPharmacist1609529072
  6. Phillip Chen, MDStudent in an Organized Health Care Education/Training Program1629605209
  7. Randy Chen, D.D.S.General Practice Dentistry1336245364
  8. Raymond Chen, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1750458634
  9. Renee Chen, M.D.Obstetrics & Gynecology Physician1760804157
  10. Richard Chen, M.D.Anesthesiology Physician1053493478
  11. Robert Chen, MDHematology (Internal Medicine) Physician1083751358
  12. Robert ChenPharmacist1073834982
  13. Samantha Chen, MDStudent in an Organized Health Care Education/Training Program1538782453
  14. Sarah ChenPharmacist1982134615
  15. Shang Chen, PHMARMDPharmacist1073115408
  16. Shanon Chen, M.D.Pediatrics Physician1376957456
  17. Shanshan Chen, PHARM.D.Pharmacist1821530205
  18. Shaw Chen, M.D.Internal Medicine Physician1043233281
  19. Shengxi Chen, MAMarriage & Family Therapist1437966587
  20. Shih-Han Chen, DMDGeneral Practice Dentistry1275735763
  21. Sidney Chen, PROGRAM COORDINATORCase Manager/Care Coordinator1417513946
  22. Simon Chen, MDPsychiatry Physician1093169500
  23. Soo Chen, M.D.Anesthesiology Physician1467694984
  24. Sophia Chen, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1992955884
  25. Sophia ChenStudent in an Organized Health Care Education/Training Program1811574726
  26. Stella Chen, MDStudent in an Organized Health Care Education/Training Program1851195572
  27. Stella ChenStudent in an Organized Health Care Education/Training Program1629917067
  28. Stephanie Chen, MDStudent in an Organized Health Care Education/Training Program1538654751
  29. Stephen Chen, M.D.Psychiatry Physician1114941382
  30. Steven Chen, PHARM.D.Pharmacist1629276019
  31. Su Chen, M.D., PH.D.General Practice Physician1720162167
  32. Su-Fen ChenPharmacotherapy Pharmacist1639556723
  33. Susan Chen, PA-CPhysician Assistant1891995049
  34. Susan ChenPharmacist1154912152
  35. Tabitha Chen, DDSDentist1912285909
  36. Tai Yu ChenFamily Nurse Practitioner1134895345
  37. Ted ChenStudent in an Organized Health Care Education/Training Program1205272523
  38. Theodore Chen, M.D.Otolaryngology/Facial Plastic Surgery Physician1710187802
  39. Thomas Chen, M.D., PHDNeurological Surgery Physician1225071509
  40. Tiffany ChenStudent in an Organized Health Care Education/Training Program1275236606
  41. Tiffany ChenStudent in an Organized Health Care Education/Training Program1720861537
  42. Tiffany ChenStudent in an Organized Health Care Education/Training Program1881529782
  43. Timothy ChenClinical Psychologist1578933495
  44. Tina Chen, PMHNP, RNPsychiatric/Mental Health Nurse Practitioner1396406831
  45. Tsuyen Chen, PSY.D.Clinical Psychologist1417017914
  46. Tzu-Jung Chen, L.ACAcupuncturist1386123404
  47. Victor Chen, M.D.Hospitalist Physician1588009583
  48. Victoria Chen, DDS, MDOral and Maxillofacial Surgery (Dentist)1356979710
  49. Vincent Chen, M.DOrthopaedic Surgery Physician1831197284
  50. Wei Kuo Chen, DDSGeneral Practice Dentistry1841451606

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.