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 46 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
- Katherine DellaferaClinical Social Worker1578137329
- Melissa Dellens, M.A., LMFTMarriage & Family Therapist1053906693
- Joseph Dellinger, MDInternal Medicine Physician1740691377
- Shakiyla DeloneBehavior Technician1720724552
- Ryan Delos Santos, LVNLicensed Vocational Nurse1992944102
- Rudy DemanettAddiction (Substance Use Disorder) Counselor1184125205
- Marie-Helene DemersMarriage & Family Therapist1275992430
- Karen Demott, M.F.C.T.Marriage & Family Therapist1275742876
- Amy Demyan, PHDClinical Psychologist1922606888
- David Denenholz, M.D.Specialist1801837331
- Angela Deng, MDFamily Medicine Physician1184365280
- Iris DengStudent in an Organized Health Care Education/Training Program1376227306
- Jeffrey Denham, M.D.Internal Medicine Physician1477592806
- Paula Denney, M.F.T.Marriage & Family Therapist1467519090
- Anjanette DennisMental Health Counselor1588781074
- Elena DennisStudent in an Organized Health Care Education/Training Program1033849971
- Isla Dennis, MA, AMFTMarriage & Family Therapist1457006751
- Lindsay Dennis, B.A.Rehabilitation Practitioner1760504831
- Whittney DennisCase Manager/Care Coordinator1457827446
- Lauren Denoia, LEP, BCBABehavior Analyst1184047201
- Elizabeth Deoliveira, MDPediatric Cardiology Physician1265414833
- Michael Depinto, AMFTMental Health Counselor1427885367
- Rene Der Gregorian, D.M.D.Dentist1285612416
- Setareh Derakhshan, D.C.Chiropractor1467722231
- Joann DerasCase Manager/Care Coordinator1043965536
- Varastad DerbedrosianAddiction (Substance Use Disorder) Counselor1831024256
- Jennifer Dergregorian, PSY.DClinical Psychologist1952650038
- Arbi Derian, D.C.Chiropractor1144415266
- Marc Derome, P.T.Physical Therapist1881748663
- Zorik Deryaghoobian, FNP, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1629754510
- Rohan DesaiStudent in an Organized Health Care Education/Training Program1841691458
- Sana DesaiStudent in an Organized Health Care Education/Training Program1265278881
- Ping Deseo, RNPsychiatric/Mental Health Registered Nurse1801506621
- Olivia DesiletsBehavior Technician1902565500
- Gabriella DesotoStudent in an Organized Health Care Education/Training Program1891620449
- Tana Desouza, M.A. LMFTMarriage & Family Therapist1215265087
- Theresa Destito, LCSWClinical Social Worker1467592550
- Mary Devan, LCSWClinical Social Worker1043427537
- Aimee DeveneyBehavior Technician1164230033
- Jeanne Devi, DDSGeneral Practice Dentistry1316122989
- Greggory Devore, M.D.Maternal & Fetal Medicine Physician1851305312
- Cristina Dezan, PH.D.Psychologist1073735106
- Ravi DhruvAddiction (Substance Use Disorder) Counselor1194354167
- Paul Di Flauro, NPFamily Medicine Physician1114400959
- Rose Di NardoBehavior Technician1023959012
- Christine DiabMarriage & Family Therapist1831821271
- Fatimata Diakite, RNCritical Care Medicine Registered Nurse1386153542
- Camille DialMarriage & Family Therapist1023589215
- Lisa DiamondMarriage & Family Therapist1144968306
- Ana DiazBehavior Technician1548938178
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.