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 29 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. David Lin, MDEmergency Medicine Physician1942241187
  2. Edwin Lin, M.D.Hematology & Oncology Physician1477755288
  3. Gene Lin, M.D.Dermatology Physician1932299252
  4. Grace Lin, M.D.Nephrology Physician1114167178
  5. Henry Lin, M.D.Neurology Physician1720104383
  6. Ivy Lin, O.D.Optometrist1255325809
  7. Simon Lin, M.D.Anesthesiology Physician1609882851
  8. Tracy Lin, PHARM.D.Pharmacist1447805239
  9. Yu Yen (kari) Lin-LiuSpeech-Language Pathologist1508114182
  10. Kirk Linn, D.D.S., M.S.Orthodontics and Dentofacial Orthopedics Dentistry1174648406
  11. Jeffrey Linsangan, MDStudent in an Organized Health Care Education/Training Program1619679651
  12. Ofelia LiraBehavior Technician1548809718
  13. Marvin Liu, MA MS LACAcupuncturist1649349382
  14. Tianci Liu, MDEmergency Medicine Physician1467016139
  15. Yolanda Liu, RDRegistered Dietitian1740102425
  16. Esther Lively, PA-CPhysician Assistant1063160711
  17. Ma. Jenny Liwag, B.A., SLPASpeech-Language Assistant1558742155
  18. Marest LlamasOccupational Therapist1881118644
  19. Eloisa LlanesClinical Nurse Specialist1366316812
  20. Simon LoPharmacist1295341345
  21. Yen-Ting Lo, MDStudent in an Organized Health Care Education/Training Program1447108626
  22. Natalie LockwoodSpeech-Language Assistant1942658992
  23. Brittney Loera, MAMarriage & Family Therapist1497267488
  24. Susan Loghmanpour, M.D.Anesthesiology Physician1225011737
  25. Dianka LohayClinical Social Worker1487580197
  26. Hon LoiSpeech-Language Assistant1821426420
  27. Patricia Lombardi, PHYSICAL THERAPYPhysical Therapist1063749000
  28. Erika LomeliBehavior Technician1164061560
  29. Esmeralda LomeliClinical Social Worker1679765515
  30. Monica LomeliMarriage & Family Therapist1780965517
  31. Megan Long, MDEmergency Medicine Physician1639344005
  32. Kwor Loo, D.D.S.Endodontics1235356551
  33. Jocelyn Loong, BCBABehavior Analyst1477905487
  34. Albina Lopez, M.A.Marriage & Family Therapist1760501951
  35. Allan Lopez, MSMarriage & Family Therapist1679000418
  36. Amanda LopezBehavior Technician1437618089
  37. Arturo Lopez, M.D.Family Medicine Physician1174560171
  38. Celina LopezBehavior Technician1043038136
  39. Diana Lopez, L.C.S.W.Clinical Social Worker1528232188
  40. Efren Lopez, MSWClinical Social Worker1578962460
  41. Elio LopezCase Manager/Care Coordinator1518560507
  42. Elysse Lopez, STUDENTStudent in an Organized Health Care Education/Training Program1558225029
  43. Faviola Lopez, LCSWClinical Social Worker1679607154
  44. Graciela LopezAssistant Behavior Analyst1922697606
  45. Heidi Lopez, RNCommunity Health Registered Nurse1124484910
  46. Jaenett LopezSpeech-Language Assistant1316248834
  47. Jaime Lopez, MDObstetrics & Gynecology Physician1205940723
  48. Jonelle LopezBehavior Technician1922722255
  49. Karen LopezStudent in an Organized Health Care Education/Training Program1972334126
  50. Kimberly Lopez, RDNRegistered Dietitian1386594141

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.