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 106 of 211.

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).

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. Jennifer Li, MDGeriatric Medicine (Internal Medicine) Physician1457844839
  2. Jenny Li, M.D.Family Medicine Physician1598812133
  3. Jianyin LiStudent in an Organized Health Care Education/Training Program1336791375
  4. Joseph Li, M.D.Obstetrics & Gynecology Physician1770573941
  5. Kevin Li, M.D.Pain Medicine (Anesthesiology) Physician1083863690
  6. Lu LiRehabilitation Practitioner1316254824
  7. Man Yi Christine LiBehavior Technician1083373690
  8. Matthew Li, D.O.Anesthesiology Physician1376075895
  9. Matthew Li, MD, MPHInternal Medicine Physician1609337617
  10. Mingxin LiLicensed Vocational Nurse1134052525
  11. Mudi Li, MAStudent in an Organized Health Care Education/Training Program1770418311
  12. Tangchen Li, BCBABehavior Analyst1497312102
  13. Tony Li, DDS, MD.Oral and Maxillofacial Surgery (Dentist)1972941292
  14. Wendy Li, PHARMDPharmacist1649942137
  15. Xiaohui LiLicensed Psychiatric Technician1962656637
  16. Ya Xin LiStudent in an Organized Health Care Education/Training Program1205459849
  17. Yuanxiaojiao LiStudent in an Organized Health Care Education/Training Program1942934468
  18. Yunjie LiStudent in an Organized Health Care Education/Training Program1972242055
  19. Libna LiahutBehavior Analyst1275407355
  20. Alexander LiangStudent in an Organized Health Care Education/Training Program1285560268
  21. Elaine LiangStudent in an Organized Health Care Education/Training Program1386487585
  22. Felice LiangStudent in an Organized Health Care Education/Training Program1518698984
  23. Garrick LiangCertified Registered Nurse Anesthetist1780365098
  24. Keene LiangOccupational Therapist1003584731
  25. Winnie Liang, DDSGeneral Practice Dentistry1225512551
  26. Jingyi Liao, L.ACAcupuncturist1699010330
  27. Li Juin LiaoRehabilitation Counselor1609132695
  28. Martha Liao, M.D.Obstetrics & Gynecology Physician1518161728
  29. Yi Ting LiaoAcupuncturist1417403486
  30. Yun-Ting Tiffany LiaoCommunity Health Worker1609446038
  31. Shawn Libaw, M.D.Emergency Medicine Physician1518226307
  32. Brandon Libby, MDEmergency Medicine Physician1699099242
  33. Ricardo Liberman, M.D.Neonatal-Perinatal Medicine Physician1083679856
  34. Giancarlo Licata, D.C.Chiropractor1285803080
  35. Deborah Liddi Brown, PH.D.Psychologist1043691975
  36. Brenda Lien, ODOptometrist1285746420
  37. Heather LienPhysical Therapist1215668959
  38. Peter Liepmann, MDFamily Medicine Physician1568415701
  39. Terry Liepmann, MS LMFTMarriage & Family Therapist1063622074
  40. Oteja LightheartStudent in an Organized Health Care Education/Training Program1134915705
  41. Clarice Lii, DDSGeneral Practice Dentistry1215706916
  42. Frankie LilesAddiction (Substance Use Disorder) Counselor1598407231
  43. Constance Lillas, RN, MFT, PHDMarriage & Family Therapist1962066563
  44. Aaron Lim, PHDClinical Neuropsychologist1073398004
  45. Amy Lim, M.D.Pediatrics Physician1861624165
  46. Hillary LimBehavior Technician1194316315
  47. Welman Lim, D.P.M.Podiatrist1215902457
  48. Brenda LimaRehabilitation Practitioner1588794705
  49. Vanesa LimaAssistant Behavior Analyst1649051079
  50. Antoinette Lima-WashingtonRehabilitation Practitioner1215326723

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.