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 86 of 211.
The 8 largest groups in Pasadena
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
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
- Sidra IslamStudent in an Organized Health Care Education/Training Program1780561225
- Tasnim IslamBehavior Technician1780281253
- Denise Island, LVNLicensed Vocational Nurse1780924852
- Alejandra IslasBehavior Technician1518736529
- Rebecca IslasBehavior Technician1376378935
- Dunia IsmailPharmacist1245584929
- Christian IspeckyAddiction (Substance Use Disorder) Counselor1033940333
- Imaan Issa, PHARMD, RPHPharmacist1518773845
- John Itamura, MDOrthopaedic Surgery Physician1164476719
- Alan Itano, DDSDentist1871789776
- Caitlin Ito, MA, OTR/LOccupational Therapist1710357876
- Ashley Itzhakian, PH.D.Psychologist1477987865
- Dakota IversonOccupational Therapy Assistant1316573637
- Paul Iwahashi, RNPsychiatric/Mental Health Registered Nurse1184146425
- Carly Iwasa, LAC.Acupuncturist1760298137
- Shunpei Iwata, M.D.Internal Medicine Physician1396931309
- Silvia IxtepanBehavior Technician1104617885
- Kriti IyerBehavior Analyst1457068942
- Alejandra IzaguirreHealth Service Psychologist1457971459
- Katrin IzumiOccupational Therapist1306103817
- Nahid JabalameliRehabilitation Practitioner1265660088
- Corinne JabbaStudent in an Organized Health Care Education/Training Program1013804236
- Marcia Jablon, MDInternal Medicine Physician1477640332
- Julia JackmanStudent in an Organized Health Care Education/Training Program1417791013
- Aaron JacksonRehabilitation Practitioner1588146724
- Alexander JacksonRehabilitation Practitioner1932334505
- Allwyne JacksonRehabilitation Practitioner1518280494
- Brittany JacksonPhysician Assistant1376971457
- Charmaine Jackson, LCSWClinical Social Worker1407181712
- Cynthia Jackson, PHDClinical Psychologist1235185653
- Demara JacksonRehabilitation Counselor1548538044
- Fatima Jackson, BSRehabilitation Practitioner1003437922
- Katelyn JacksonStudent in an Organized Health Care Education/Training Program1902733157
- Kayla JacksonBehavior Technician1801550462
- Kellie JacksonSocial Worker1538604673
- Kirstine-Priscille JacksonCase Manager/Care Coordinator1881452902
- Leequan JacksonBehavior Technician1851012140
- Makalah JacksonStudent in an Organized Health Care Education/Training Program1487575965
- Michael Jackson, MFTMental Health Counselor1740478155
- Peter Jackson, M.D.Pediatric Adolescent Medicine Physician1366536328
- Precioustoni JacksonClinical Social Worker1790250116
- Rick Jackson, MFTMarriage & Family Therapist1730682824
- Roy Jackson, M.D.Internal Medicine Physician1669424982
- Sara Jackson, M.A.Counselor1063681732
- Timothy Jackson, M.D.Orthopaedic Surgery Physician1245481266
- Joshua Jacobi, M.D.Cardiovascular Disease Physician1710109509
- Jamie JacoboBehavior Technician1114505302
- Abigail Jacobs, MDSurgery Physician1164112322
- Shanna Jacobsen, CCAPPAddiction (Substance Use Disorder) Counselor1609241777
- William Jacobson, D.C.Chiropractor1578559795
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
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.