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 30 of 57.

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).

The 8 largest groups in Whittier

  1. Behavior Technician272
  2. Clinical Social Worker149
  3. Speech-Language Assistant141
  4. Marriage & Family Therapist137
  5. Pharmacist108
  6. Students in training98
  7. Chiropractor94
  8. Speech-Language Pathologist90

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. Krystal LopezOccupational Therapist1306317607
  2. Leslye LopezOccupational Therapist1518532191
  3. Lizet LopezSpeech-Language Assistant1417774365
  4. Maribelle Lopez, OT/LOccupational Therapist1306249271
  5. Maritza LopezBehavior Technician1912467127
  6. Melissa LopezPhysician Assistant1386134542
  7. Ninred LopezAssistant Behavior Analyst1265022701
  8. Rosanna Lopez, A.A.Speech-Language Assistant1851759336
  9. Yasmin LopezMarriage & Family Therapist1538414289
  10. Vanessa Lord, MA, BCBABehavior Analyst1003365644
  11. Elaine LouiePharmacist1013334531
  12. Kaleia LoveBehavior Technician1477145878
  13. Marcela Lowe, D.C.Chiropractor1568686848
  14. Oariona Lowe, D.D.S.Pediatric Dentistry1508927393
  15. Rene LozanoRehabilitation Practitioner1376904565
  16. Jacob LozoyaAddiction (Substance Use Disorder) Counselor1487570743
  17. Samantha LuBehavior Technician1962245134
  18. David LuafatasagaBehavior Technician1861086191
  19. Alyssa LuceroBehavior Technician1831818244
  20. Arelis LuceroBehavior Analyst1427703479
  21. Gladys LuceroSpeech-Language Assistant1265950786
  22. Philip LuiBehavior Technician1780476853
  23. Stanton Lum, M.D.Anesthesiology Physician1972653327
  24. Maria LunaRegistered Nurse1821956749
  25. Siouxsie LunaStudent in an Organized Health Care Education/Training Program1376220566
  26. Sylvia LunaRehabilitation Practitioner1083745616
  27. Charles Lundin, DCChiropractor1326242553
  28. Olivia LunginStudent in an Organized Health Care Education/Training Program1366306821
  29. Khanh Luong, PHARMDPharmacist1083402432
  30. Sofia Lupian Hernandez, MSW, PPSClinical Social Worker1003161803
  31. Nadia Lutfi-Orozco, MS, LMFTMarriage & Family Therapist1356550552
  32. Jessica LuttrellBehavior Analyst1740899723
  33. Justin Luu, DOStudent in an Organized Health Care Education/Training Program1114866654
  34. Phu LuuMarriage & Family Therapist1558792473
  35. Adrienne Ly, D.CChiropractor1740401785
  36. Anh Ly, RNRegistered Nurse1497110977
  37. Jonathan Ly, PSYDMental Health Counselor1104295831
  38. Helen Huong Ma, FNPFamily Nurse Practitioner1497002257
  39. Jian Ma, M.D., DC, D.A.C.B.RChiropractor1265658017
  40. Carole Maa, MAHearing Instrument Specialist1407884836
  41. William Macdonald, M.D.Anatomic Pathology & Clinical Pathology Physician1679512149
  42. Stephanie Machado, LCSWClinical Social Worker1205968278
  43. Natalia MaciasSpeech-Language Assistant1982378964
  44. Natalie Macias, LCSWClinical Social Worker1619489291
  45. Robert MaciasBehavior Technician1679205017
  46. Shawna Macias, CATCAddiction (Substance Use Disorder) Counselor1154783124
  47. Veronica MaciasClinical Psychologist1821118092
  48. Sakshi Madan, PA-CPhysician Assistant1518474816
  49. Yesenia MaderaMarriage & Family Therapist1952786600
  50. Aryatna Madera-Reber, LCSWClinical Social Worker1912021478

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.