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 71 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. Sara Gross, DPTPhysical Therapist1497413231
  2. Stephanie Gross, MS COUNSELINGBehavior Technician1720558984
  3. Zerri GrossMarriage & Family Therapist1861630568
  4. Lauren Grossman, M.S., CCC-SLPSpeech-Language Pathologist1114567070
  5. Katlyn Grossnickle, PT, DPTPhysical Therapist1467883017
  6. Arianne Groth, LMFTMarriage & Family Therapist1215790233
  7. Julia GroverRehabilitation Practitioner1568704773
  8. Lee Grund, DDSGeneral Practice Dentistry1093922775
  9. Tiffany Gu, OTR/LOccupational Therapist1992274807
  10. Janny GuadarramaBehavior Technician1225789423
  11. Diana GuadianBehavior Analyst1649889296
  12. Herminia Guadiana, LMFTMarriage & Family Therapist1033406632
  13. Steven Guadiz, P.T.Physical Therapist1245288216
  14. Toni Guajardo-Gonzalez, PH.D.Clinical Psychologist1902965445
  15. Annie Guan, MSN, APRN, AGACNP-BCAcute Care Nurse Practitioner1326815341
  16. Zhe GuangTechnician1720926330
  17. Alexis GuardadoBehavior Analyst1861086266
  18. Sage GuardadoCase Manager/Care Coordinator1063970382
  19. Inna GubernikPharmacist1396038147
  20. Lillian GudaitisBehavior Technician1023774684
  21. Dalton Gudelmann, RRWAddiction (Substance Use Disorder) Counselor1063608578
  22. Melanie GudinoRehabilitation Practitioner1295589398
  23. Hannah GueitBehavior Technician1417622903
  24. Michael Guenoun, MD, MPHStudent in an Organized Health Care Education/Training Program1336087683
  25. Claudia GuerraBehavior Technician1174289755
  26. Andrea GuerreroMental Health Counselor1093299174
  27. Angelica GuerreroRehabilitation Practitioner1780107250
  28. Anthony Guerrero, LVNLicensed Practical Nurse1902318462
  29. Cathleen GuerreroMarriage & Family Therapist1144903212
  30. Diane Guerrero, RNCObstetrics & Gynecology Nurse Practitioner1811225782
  31. Emiley GuerreroBehavior Technician1730925694
  32. Kaitlyn GuerreroBehavior Technician1063171700
  33. Lance Christopher Guerrero, C.R.N.ACertified Registered Nurse Anesthetist1336450741
  34. Mayra GuerreroClinical Social Worker1376978890
  35. Yadira Guerrero, REGISTER NURSESchool Registered Nurse1609610260
  36. Celia Guerrero-MezaCase Manager/Care Coordinator1821543679
  37. Tania Guerrier Castor, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1134762917
  38. Esteban GuevaraRehabilitation Practitioner1275929341
  39. Michelle GuevaraClinical Social Worker1184741241
  40. Joseph GuiffreRehabilitation Practitioner1952085532
  41. Belen GuillenMental Health Counselor1356918148
  42. Brenda GuillenBehavior Technician1669187001
  43. Christopher GuillenBehavior Technician1205692779
  44. Suzette GuillenRehabilitation Practitioner1174655484
  45. Lorraine GuillermoCommunity Health Worker1851131619
  46. Maricela Guillermo, PHARM.D.Ambulatory Care Pharmacist1134673809
  47. Katherinne GuineaMarriage & Family Therapist1780332122
  48. Karen Guinn, DDSOrthodontics and Dentofacial Orthopedics Dentistry1225168446
  49. Elizabeth GuizarRehabilitation Practitioner1851055347
  50. Amanda GulatiBehavior Technician1851009880

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.