NPPES file of Aug 9, 2026

Doctors and health care providers in West Covina, CA

2,450 individual NPPES records list a practice address in West Covina, 94th of 812 California cities. The largest group is behavior technician: 820, 33% of the city's records, against 18% across California. Page 32 of 49.

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 West Covina

  1. Behavior Technician820
  2. Marriage & Family Therapist112
  3. Clinical Social Worker72
  4. Family Medicine Physician69
  5. Pharmacist69
  6. Dentist66
  7. Behavior Analyst66
  8. Family Nurse Practitioner62

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

West Covina in California

  • Rank in California94th of 812 cities by records
  • Share of the state0.3% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups41% of all records

Compared with California as a whole, West Covina has 4.9× the state's share of speech-language assistant records and 0.37× its share of mental health counselor records.

Providers in West Covina, alphabetically

  1. Jemimah Ndungu, RNRegistered Nurse1114492790
  2. Lesley NegreteBehavior Technician1063126605
  3. Armen Nercessian, D.O.General Practice Physician1679534374
  4. Darlene NerizBehavior Technician1124742283
  5. Kimberly NevarezSpeech-Language Pathologist1043721046
  6. Martha NevensBehavior Technician1275469074
  7. Sylvia Ng, NPFamily Nurse Practitioner1679076855
  8. Philip Ngai, M.D.Glaucoma Specialist (Ophthalmology) Physician1649614215
  9. Nathan Alexander Ngo, DPTPhysical Therapist1447015482
  10. Anna NguyenPharmacist1073147583
  11. Bac Nguyen, MDOtolaryngology Physician1851400527
  12. Catherine NguyenPhysician Assistant1336665975
  13. Catherine Nguyen, DDSDentist1326541996
  14. Hang NguyenBehavior Technician1053028852
  15. Huy Nguyen, D.C.Chiropractor1376709964
  16. Huy Nguyen, D.O.Family Medicine Physician1518271964
  17. Jarvis NguyenPhysical Therapy Assistant1316643844
  18. Jennifer NguyenOccupational Therapy Assistant1073382107
  19. Jenny Nguyen, DOFamily Medicine Physician1992496996
  20. Jessica NguyenSpeech-Language Pathologist1265907281
  21. Kristina Nguyen, PA-CMedical Physician Assistant1831802552
  22. Linh-Chi NguyenStudent in an Organized Health Care Education/Training Program1154202208
  23. Lisa NguyenBehavior Technician1053125997
  24. Marie NguyenDentist1093192817
  25. Michelle Nguyen, DDSGeneral Practice Dentistry1457432148
  26. Nhi Nguyen, BCBABehavior Analyst1740778273
  27. Phong Nguyen, O.D.Optometrist1710972195
  28. Phuong Nguyen, PHARMDPharmacist1578079349
  29. Quang Nguyen, MDStudent in an Organized Health Care Education/Training Program1851225650
  30. Richard NguyenBehavior Technician1629713995
  31. Teresa Nguyen, PA-CPhysician Assistant1255097283
  32. Tiffnay Nguyen, D.C.Acupuncturist1316066160
  33. Tina NguyenBehavior Technician1508712639
  34. Tram Nguyen, O.D.Optometrist1316196389
  35. Trevor-Trung NguyenStudent in an Organized Health Care Education/Training Program1033965975
  36. Tuoc NguyenFamily Nurse Practitioner1487416913
  37. Myemouna NgwegniBehavior Technician1316650898
  38. Angela Ni, MDGeneral Practice Physician1962467423
  39. Charmaine NiFamily Nurse Practitioner1497648422
  40. Natasha Nichols, MFTIMental Health Counselor1053518043
  41. Edmund Nichter, M.D.Emergency Medicine Physician1184897910
  42. Matthew NiehOrthopedic Physical Therapist1417787276
  43. Misook Nierodzik, PSY. D.Clinical Psychologist1033252283
  44. Leticia NietoClinical Social Worker1235884149
  45. Pui NipPharmacist1811478621
  46. Edward Nodal, MFT INTERNMarriage & Family Therapist1972768463
  47. Catherine Noel-Uyloan, MDGeneral Practice Physician1891891537
  48. Ariana NogueraBehavior Technician1902559438
  49. Marisol NolanBehavior Technician1275356776
  50. Brian NorwoodBehavior Technician1902793870

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

West Covina, California appears in the CMS National Plan and Provider Enumeration System with 2,450 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 West Covina - 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 West Covina 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 West Covina is weighted toward Behavior Technician (820 clinicians, followed by Marriage & Family Therapist with 112 and Clinical Social Worker with 72). 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, West Covina reports roughly 6.3 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.

For West Covina 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 West Covina, CA?

There are 2,450 registered healthcare providers in West Covina, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in West Covina?

The most common specialties in West Covina are Behavior Technician, Marriage & Family Therapist, Clinical Social Worker, Family Medicine Physician, Pharmacist. Behavior Technician has the most providers with 820.

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.