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 217 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. Jennie ChengPharmacist1962041129
  2. Jerry Cheng, M.D.Pediatric Hematology & Oncology Physician1093741175
  3. John Cheng, MDOphthalmology Physician1205586773
  4. Johnny Cheng, CRNACertified Registered Nurse Anesthetist1063713907
  5. Jonathan Cheng, MDNephrology Physician1538600887
  6. Julia ChengStudent in an Organized Health Care Education/Training Program1932900115
  7. Justin Cheng, M.D.Diagnostic Radiology Physician1316470370
  8. Justin ChengGeriatric Medicine (Internal Medicine) Physician1114486255
  9. Justin ChengStudent in an Organized Health Care Education/Training Program1922809201
  10. Kai-Yun Cheng, N.D., LACAcupuncturist1427312404
  11. Karen Cheng, MDInternal Medicine Physician1487689386
  12. Kimberly Cheng, PHARMDPharmacist1558618470
  13. Kimberly Cheng, LMFTMarriage & Family Therapist1922808260
  14. Kyle ChengBehavior Technician1184417263
  15. Lillian Cheng, D.D.S.General Practice Dentistry1225250301
  16. Lisa Cheng, MDPediatrics Physician1467689935
  17. Lorraine Cheng, ODOptometrist1821624164
  18. Ly ChengStudent in an Organized Health Care Education/Training Program1376154013
  19. Marlyn Cheng, M.D.Anesthesiology Physician1295842128
  20. Maxwell Cheng, ODOptometrist1437218153
  21. Megan Cheng, MDStudent in an Organized Health Care Education/Training Program1932805249
  22. Melodyanne ChengStudent in an Organized Health Care Education/Training Program1689476103
  23. Meng-Ning ChengMental Health Counselor1346751393
  24. Michael Cheng, MDAnesthesiology Physician1023189917
  25. Michael Cheng, MDPediatrics Physician1972674950
  26. Michael Cheng, M.D.Student in an Organized Health Care Education/Training Program1659766475
  27. Michelle ChengDermatology Physician1720582059
  28. Nicole Cheng, D.D.S.Orthodontics and Dentofacial Orthopedics Dentistry1205240785
  29. Pamela Cheng, D.O.Student in an Organized Health Care Education/Training Program1295120590
  30. Peilin Cheng, M.D.Psychiatry Physician1801048657
  31. Phillip Cheng, MDDiagnostic Radiology Physician1457522682
  32. Qinghong Cheng, RCPNeonatal/Pediatric Registered Respiratory Therapist1982128054
  33. Quen ChengInfectious Disease Physician1194091298
  34. Richard Cheng, MDCardiovascular Disease Physician1437426699
  35. Sarah ChengDay Training/Habilitation Specialist1043016827
  36. Shenghan ChengStudent in an Organized Health Care Education/Training Program1609488774
  37. Shirley ChengSpeech-Language Pathologist1023350022
  38. Simon Cheng, O.D.Optometrist1396887410
  39. Sophan ChengNurse Practitioner1225405921
  40. Susan Cheng, M.D.Cardiovascular Disease Physician1154418291
  41. Thomas Cheng, MDFamily Medicine Physician1629562731
  42. Tse-Chang Cheng, MDHematology (Pathology) Physician1851462733
  43. Vicki Cheng, FNP-CNurse Practitioner1255994216
  44. Vincent Cheng, M.D.Surgery Physician1073044137
  45. Viviana ChengRehabilitation Practitioner1639203193
  46. Wen Cheng, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1073597043
  47. Yian Cheng, M.D.Emergency Medicine Physician1124200837
  48. Yoey Cheng, PSYDPsychologist1245548429
  49. Yvette Elizabeth ChengPharmacist1104298413
  50. Cheryl Chenot, PSY.D., MFTMarriage & Family Therapist1649396615

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.