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 20 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. Sonia GutierrezAssistant Behavior Analyst1275344160
  2. Gabriela Gutierrez Corrales, DDSDentist1881110674
  3. Adrienne GuzmanSpeech-Language Assistant1336892249
  4. Bonnie GuzmanBehavior Technician1538085691
  5. Denise Guzman, SLPASpeech-Language Assistant1548510506
  6. Grace GuzmanMarriage & Family Therapist1740578236
  7. Samantha GuzmanBehavior Analyst1518704287
  8. Sandra GuzmanMarriage & Family Therapist1962829077
  9. Tatyana Guzman, SLPASpeech-Language Assistant1659173235
  10. Sara Guzman OlanoMassage Therapist1043011778
  11. Lien Ha, MDStudent in an Organized Health Care Education/Training Program1205776515
  12. Romy Haas LauprechtDoula1891031407
  13. Mojan Habibi, M.D.Hospitalist Physician1326591322
  14. Amira HaddadBehavior Technician1477134310
  15. Debra Hadden, PSY.D.Clinical Psychologist1679725360
  16. Ali Hafezi, MDPain Medicine (Psychiatry & Neurology) Physician1245257948
  17. Arev Hagopian, RDRegistered Dietitian1881546323
  18. Christine Hahm, RN, NPNurse Practitioner1124585666
  19. Mehek Haider, OTR/LOccupational Therapist1124527627
  20. Elisabeth Haile, MSWClinical Social Worker1407988769
  21. Victoria HainsBehavior Technician1144955410
  22. T'Naya HallBehavior Technician1013643022
  23. Christy HalliburtonAddiction (Substance Use Disorder) Counselor1104366251
  24. Lana HamburgerHearing Instrument Specialist1346288388
  25. Debbie Hamilton, CNMAdvanced Practice Midwife1932258431
  26. Gia Hamilton, M.S., LMFTMarriage & Family Therapist1902226145
  27. Aileen HanBehavior Technician1053029009
  28. Gary Hana, PHARMDPharmacist1134724453
  29. Helen Hanna, M.D.Internal Medicine Physician1174054639
  30. Thea Hanna, RNCommunity Health Registered Nurse1265897334
  31. Darlene HansonSpeech-Language Pathologist1972126555
  32. Claire HaraOccupational Therapist1750750022
  33. Lynda Harbert, M.F.T.Marriage & Family Therapist1356471809
  34. April HardySpeech-Language Pathologist1881373116
  35. Rebekah Harman, COTA/LOccupational Therapy Assistant1730322777
  36. Indika Harmon, MDFamily Medicine Physician1508515867
  37. Jennifer Harmon, SLPASpeech-Language Assistant1437561305
  38. Brittany HarperOccupational Therapist1063135424
  39. Edward Harris, M.D.Rheumatology Physician1780730838
  40. Erin Harris, PSYCHOLOGISTPsychologist1174855191
  41. Michael Harris, PHDPsychologist1134200959
  42. Stephanie HarrisonHearing Instrument Specialist1588150361
  43. Zariah HarrisonBehavior Technician1659216133
  44. Sheila Harrod, DCChiropractor1689794877
  45. Raffi Hartounian, RPHPharmacist1639283773
  46. Mohammed Hassan, DPMPodiatrist1679001564
  47. Nathan HauckGeneral Practice Dentistry1518249861
  48. Glenn HeapMarriage & Family Therapist1477763399
  49. Thomas Heiman, M.D.Anesthesiology Physician1801865266
  50. Paul Helfgott, M.D.Neurology Physician1316922107

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.