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 108 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. Bert LiuPulmonary Disease Physician1437511607
  2. David Liu, L.AC.Acupuncturist1982075263
  3. June LiuPhysician Assistant1801520960
  4. Kuei Ku LiuAcupuncturist1275939431
  5. Shirley Liu, RPHPharmacist1932512597
  6. Tammy Liu, D.O.Family Medicine Physician1740540970
  7. Yan LiuAcupuncturist1851975122
  8. Tina LivingsAddiction (Substance Use Disorder) Counselor1457826687
  9. Charlotte LivingstonBehavior Technician1205544848
  10. Carmen LizarragaLicensed Vocational Nurse1215329347
  11. Jennifer Lizarraga, M.A.Marriage & Family Therapist1639352503
  12. Omar LizarragaAddiction (Substance Use Disorder) Counselor1316325459
  13. Rosa Lizarraga, BA, MS, PPS, CWAMarriage & Family Therapist1407987183
  14. Monique LizzetteBehavior Technician1194322230
  15. Marie Felyn Llacuna, RNRegistered Nurse1720618952
  16. Gloria LlamasRehabilitation Practitioner1689066839
  17. Jamie LlamasAddiction (Substance Use Disorder) Counselor1396322384
  18. Jonathan Llamas, DNP, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1578104568
  19. Martin Lawerence LlamasStudent in an Organized Health Care Education/Training Program1104296763
  20. Michelle LlamasCase Manager/Care Coordinator1255968921
  21. Oscar LlamasBehavior Technician1336810522
  22. Priscilla Llanos, M.S.Assistant Behavior Analyst1881299196
  23. Natalia Llarena, MDReproductive Endocrinology Physician1083005300
  24. Gina LlevaStudent in an Organized Health Care Education/Training Program1407045537
  25. Strider LloydCase Manager/Care Coordinator1801397906
  26. Lucy Lo, M.D.Internal Medicine Physician1083645725
  27. Tracy Lo, MAStudent in an Organized Health Care Education/Training Program1962660894
  28. Vianna LoMental Health Counselor1740754233
  29. Gabby LobbyBehavior Technician1922692557
  30. Maria Lobodzinski, D.D.S.Prosthodontics1023288768
  31. Nicholas LockeStudent in an Organized Health Care Education/Training Program1922783844
  32. Dajah LockettCommunity Health Worker1356882245
  33. Fernando LodevicoCase Manager/Care Coordinator1144602848
  34. Nicole Loebach, LCSW, MPHClinical Social Worker1710135892
  35. Casey Loebs, CADC-CASAddiction (Substance Use Disorder) Counselor1396179644
  36. Alexander Loera, M.A.Marriage & Family Therapist1194266130
  37. Irene Loewen, PH.D.Psychologist1942478813
  38. Miles LofgrenCase Manager/Care Coordinator1578118733
  39. Susan Lofgren, LMFTMarriage & Family Therapist1235728692
  40. Jamie LoftonRehabilitation Practitioner1447489315
  41. Aki Logg, CGCGenetic Counselor (M.S.)1063871481
  42. Catherine LohrRehabilitation Practitioner1134242266
  43. Robert Loitz, MDPediatric Cardiology Physician1225010077
  44. Rodney LomackPeer Specialist1578343315
  45. Carol Lomas, L.C.S.W.Clinical Social Worker1578695318
  46. Donald Lomas, PH.D.Clinical Social Worker1649378803
  47. Forreste Lombard, BCBABehavior Analyst1306342340
  48. Alita Lombardo, PH.D.Clinical Psychologist1447419239
  49. Alexandria LomeliBehavior Technician1518558121
  50. Karen LomeliBehavior Technician1881456192

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.