NPPES file of Aug 9, 2026

Doctors and health care providers in Pasadena, CA

10,525 individual NPPES records list a practice address in Pasadena, 13th of 812 California cities. The largest group is behavior technician: 1,617, 15% of the city's records, against 18% across California. Page 104 of 211.

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

Pasadena in California

  • Rank in California13th of 812 cities by records
  • Share of the state1.1% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups34.4% of all records

Compared with California as a whole, Pasadena has 6.2× the state's share of rehabilitation practitioner records and 0.51× its share of general practice dentistry records.

Providers in Pasadena, alphabetically

  1. Regina Lee, DOPsychiatry Physician1679012231
  2. Richard Lee, M.D.Maternal & Fetal Medicine Physician1922030204
  3. Ruth Lee, LCSWClinical Social Worker1306797410
  4. Sang Lee, PHD, L.AC.Acupuncturist1962576405
  5. Sangeun LeeStudent in an Organized Health Care Education/Training Program1245781657
  6. Sangwon LeePhysical Therapist1780459289
  7. Siu Kwan Cherry Lee, MA, BCBABehavior Analyst1144746058
  8. So Yeon Lee, D.D.S.General Practice Dentistry1730578923
  9. Stephanie Lee, DDSGeneral Practice Dentistry1740530849
  10. Susie Lee, LMFTMarriage & Family Therapist1598881880
  11. Thomas Lee, BARehabilitation Counselor1558485128
  12. Tracy LeeMarriage & Family Therapist1205263357
  13. Warren Lee, MD, MHSEndocrinology, Diabetes & Metabolism Physician1942696448
  14. William LeeOrthopedic Physical Therapist1982040614
  15. Young Lee, M.D.Anesthesiology Physician1720024383
  16. Hasani LeffallBehavior Analyst1356920870
  17. Halle LefkowitzStudent in an Organized Health Care Education/Training Program1902720626
  18. Michele Lefkowitz, MDInternal Medicine Physician1033262407
  19. John Legault, MDPediatrics Physician1184697690
  20. Margaret Legault, MDPediatrics Physician1538132048
  21. Gregory LeggettRehabilitation Practitioner1366783227
  22. Lashunda LeggettBehavior Technician1982367371
  23. Max Lehfeldt, M.D.Plastic and Reconstructive Surgery Physician1881712131
  24. Stefanie Lehfeldt, M.DAnesthesiology Physician1750497616
  25. Edith Lei, MFTMarriage & Family Therapist1841322690
  26. Freda Hio Tong Lei, LCSWClinical Social Worker1326520404
  27. Victor Lei, MDEmergency Medicine Physician1477174258
  28. Rachel LeiderStudent in an Organized Health Care Education/Training Program1275310021
  29. Jenna Lemon, DCChiropractor1043547490
  30. Claudia Lemus, ASWRehabilitation Practitioner1780005769
  31. Izel LemusBehavior Technician1912705609
  32. Jazmin LemusBehavior Technician1558073890
  33. Maria LemusBehavior Technician1972317071
  34. Nery LemusMental Health Counselor1386766608
  35. Corey LenahanAddiction (Substance Use Disorder) Counselor1548894421
  36. Qamar LenonBehavior Technician1578221073
  37. Ashley LeonBehavior Technician1114868254
  38. Christopher Leon, RBTBehavior Technician1134739261
  39. Daniel Leon, L.C.S.W.Clinical Social Worker1932376753
  40. Jazmin LeonBehavior Technician1871256560
  41. Nicole LeonSocial Worker1407596489
  42. Tricia Leon, NPNurse Practitioner1326231580
  43. Victor LeonBehavior Technician1457211294
  44. Aimee Leonard, ASWSocial Worker1174860910
  45. Amy LeongBehavior Technician1588275796
  46. Gustavo LeorCertified Registered Nurse Anesthetist1316628563
  47. Jazmin Leos, LVNLicensed Vocational Nurse1104476365
  48. Amanda Lepore, ET/PCounselor1427760388
  49. Christine LeroyBehavior Technician1730753419
  50. Adam LessingStudent in an Organized Health Care Education/Training Program1326722414

The largest California cities

  1. Los Angeles69,537
  2. San Diego52,937
  3. San Francisco38,143
  4. Sacramento33,083
  5. San Jose20,925

All of California →

How to read this directory

Pasadena, California appears in the CMS National Plan and Provider Enumeration System with 10,525 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 Pasadena - 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 Pasadena 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 Pasadena is weighted toward Behavior Technician (1,617 clinicians, followed by Marriage & Family Therapist with 1,082 and Rehabilitation Practitioner with 924). 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, Pasadena reports roughly 27 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.

For Pasadena 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 Pasadena, CA?

There are 10,525 registered healthcare providers in Pasadena, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Pasadena?

The most common specialties in Pasadena are Behavior Technician, Marriage & Family Therapist, Rehabilitation Practitioner, Student in an Organized Health Care Education/Training Program, Clinical Social Worker. Behavior Technician has the most providers with 1,617.

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.