NPPES file of Aug 9, 2026

Doctors and health care providers in Whittier, CA

2,836 individual NPPES records list a practice address in Whittier, 80th of 812 California cities. The largest group is behavior technician: 272, 10% of the city's records, against 18% across California. Page 12 of 57.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Whittier

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Whittier in California

  • Rank in California80th of 812 cities by records
  • Share of the state0.3% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups19.8% of all records

Compared with California as a whole, Whittier has 19.1× the state's share of speech-language assistant records and 0.50× its share of mental health counselor records.

Providers in Whittier, alphabetically

  1. Maria De LeonSpeech-Language Pathologist1114614542
  2. Valerie De Los SantosSpeech-Language Assistant1447680640
  3. Daniel De Luna, DPTPhysical Therapist1679995476
  4. Nadina De Souza, DCChiropractor1932372992
  5. Nicole DegraciaOccupational Therapy Assistant1508452640
  6. Linda Dehaas, M.P.T.Physical Therapist1093816589
  7. Richard Del Pilar, B.C.B.ABehavior Analyst1861941411
  8. Evelyn Del Rosario, RPHPharmacist1053845511
  9. Alexandria DelaraBehavior Technician1770416687
  10. Angel Delgadillo, P.A.Medical Physician Assistant1821297482
  11. Brooke Delgadillo, RCSNSchool Registered Nurse1013671403
  12. Eduardo DelgadilloCase Manager/Care Coordinator1164556569
  13. Jeanette DelgadoSpeech-Language Assistant1376219824
  14. Jeselyn Delgado, OTOccupational Therapist1427385533
  15. Maria DelgadoBehavior Technician1356020838
  16. Monica DelgadoBehavior Technician1821827189
  17. Sarah Delgado, R.N., N.P.Acute Care Nurse Practitioner1538370564
  18. Marina Delgado Sanchez, PAPhysician Assistant1215745690
  19. Patrick Deligero, M.D.Internal Medicine Physician1427412451
  20. Kris Denholm, PA-CSurgical Physician Assistant1245971118
  21. Afsaneh DerakhshanChiropractor1306481825
  22. Sonia Derousse, L.C.S.W.Clinical Social Worker1629265426
  23. Beverly DerryStudent in an Organized Health Care Education/Training Program1992525844
  24. Amar Desai, M.D.Interventional Cardiology Physician1134564347
  25. Mary Desroches, D.C., B.P.E.Rehabilitation Chiropractor1730251596
  26. Amrit Pal Dhillon, PA-CPhysician Assistant1134759582
  27. Lauren Diab, PAPhysician Assistant1093166472
  28. Kevin Diao, MDRadiation Oncology Physician1578067260
  29. Itzzaiana DiazBehavior Technician1043839079
  30. Janice DiazBehavior Technician1548190739
  31. Luis DiazLicensed Vocational Nurse1518330091
  32. Tanya DiazClinical Psychologist1154639169
  33. Yaremi Diaz, MSAssistant Behavior Analyst1962090274
  34. Wendy DiegoOccupational Therapist1588499784
  35. P. Dillon, M.A., MFTMarriage & Family Therapist1548388242
  36. Rachel Dimacali, PA-CFamily Medicine Physician1881989846
  37. Charlene Dimas-Peinado, L.C.S.W.Clinical Social Worker1205960689
  38. Anthony Dinh, PHARM.D.Pharmacist1750013165
  39. Trung Dinh, PA-CMedical Physician Assistant1356718753
  40. Andrea DixonBehavior Technician1447993670
  41. Monica DixonAddiction (Substance Use Disorder) Counselor1144466871
  42. Rebecca DixonPharmacy Technician1861145237
  43. Caleb Dizon, FNP-CNurse Practitioner1518473552
  44. Andrew Djaya, DDSDentist1225641624
  45. Tantra Djaya, DDSDentist1699810325
  46. Anh DoPharmacist1093417792
  47. Kassie DoSchool Social Worker1760357461
  48. Kimberly Dawn DoctoleroPediatric Occupational Therapist1235682824
  49. Jean Doerfler, CA NHA 5826Nursing Home Administrator1609025147
  50. Elizabeth DominguezSpeech-Language Assistant1346607173

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

Whittier, California appears in the CMS National Plan and Provider Enumeration System with 2,836 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 Whittier - 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 Whittier 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 Whittier is weighted toward Behavior Technician (272 clinicians, followed by Clinical Social Worker with 149 and Speech-Language Assistant with 141). 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, Whittier reports roughly 7.3 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.

Of California's most common specialties, Case Manager/Care Coordinator is the most prominent one with no provider currently listing a Whittier practice address, a coverage gap Whittier patients typically fill by traveling to a larger nearby hub.

For Whittier 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 Whittier, CA?

There are 2,836 registered healthcare providers in Whittier, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Whittier?

The most common specialties in Whittier are Behavior Technician, Clinical Social Worker, Speech-Language Assistant, Marriage & Family Therapist, Pharmacist. Behavior Technician has the most providers with 272.

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.