NPPES file of Aug 9, 2026

Doctors and health care providers in Westminster, CA

1,306 individual NPPES records list a practice address in Westminster, 162nd of 812 California cities. The largest group is pharmacist: 151, 12% of the city's records, against 3% across California. Page 19 of 27.

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

The 8 largest groups in Westminster

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

Westminster in California

  • Rank in California162nd of 812 cities by records
  • Share of the state0.1% of California's records
  • Specialties present25 or more taxonomy codes
  • Top three groups24.1% of all records

Compared with California as a whole, Westminster has 4.4× the state's share of other technician records and 0.26× its share of behavior technician records.

Providers in Westminster, alphabetically

  1. Hai Pham, M.D.Internal Medicine Physician1548223712
  2. Huan PhamPhysician Assistant1366256166
  3. Hung Pham, LCSWClinical Social Worker1174613913
  4. Huong Pham, MA, CCC-SLPSpeech-Language Pathologist1831517309
  5. John Pham, PHARM D.Pharmacist1053698720
  6. Kelly Pham, ODOptometrist1891368593
  7. Kevin Pham, DDSDentist1972388411
  8. Khanh Pham, MDFamily Medicine Physician1437160439
  9. Khoa PhamOphthalmology Physician1972879427
  10. Kim Nguyen Pham, OMD, LA.CAcupuncturist1467692871
  11. Lan PhamRehabilitation Practitioner1437295425
  12. Lan Pham, D.D.S.General Practice Dentistry1114056868
  13. Loan Anh Pham, RNCommunity Health Registered Nurse1407037062
  14. Minh-Duc Pham, D.D.SDentist1891723839
  15. Nam PhamPharmacist1104462076
  16. Natalie Pham, DDSGeneral Practice Dentistry1689654873
  17. Natalie Pham, DCChiropractor1124857917
  18. Ngan PhamSocial Worker1619230026
  19. Nghia Pham, DMDGeneral Practice Dentistry1053498410
  20. Ngoc Pham, DDSDentist1578765178
  21. Paul Pham, M.D.Anesthesiology Physician1316972144
  22. Paul Pham, DDSGeneral Practice Dentistry1740408657
  23. Queenie Pham, RPHPharmacist1598084402
  24. Sean Pham, P.TPhysical Therapist1437462264
  25. Sy PhamPharmacist1174038442
  26. Thi Pham, O.D.Optometrist1801984315
  27. Thuananh PhamPharmacist1619802741
  28. Thuy Pham, RDHAPDental Hygienist1093506511
  29. Thuy-Vy Pham, FNPFamily Nurse Practitioner1336852680
  30. To Uyen Pham, DDSDentist1376688622
  31. Tran Pham, DDSGeneral Practice Dentistry1851432447
  32. Trung Pham, M.D.Family Medicine Physician1851355101
  33. Vivian PhamCounselor1114214137
  34. Carolyn Phan, PT, DPTPhysical Therapist1023770146
  35. Christine PhanLicensed Vocational Nurse1356078752
  36. Derek Phan, M.D.Internal Medicine Physician1073729588
  37. Henry PhanPharmacist1356625032
  38. Hoa Phan, MDFamily Medicine Physician1255869566
  39. Huy PhanStudent in an Organized Health Care Education/Training Program1437087079
  40. Kenny PhanAcupuncturist1295184810
  41. Phuong-Chi Phan, M.D.Internal Medicine Physician1063478402
  42. Quyen Phan, RNCommunity Health Registered Nurse1225101140
  43. Quynh Phan, DDSGeneral Practice Dentistry1396876322
  44. Susan PhanPharmacist1538617006
  45. Tuan Phan, MDFamily Medicine Physician1396799672
  46. Tuyet-Mai Phan, M.D.Ophthalmology Physician1710900477
  47. Van Thu Phan, DDSDentist1871585984
  48. Vu PhanDentist1730781808
  49. Kathy Phi, OTR/LOccupational Therapist1376932905
  50. Linda Phi, DDSOrthodontics and Dentofacial Orthopedics Dentistry1598241432

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

Westminster, California appears in the CMS National Plan and Provider Enumeration System with 1,306 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 Westminster - 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 Westminster 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 Westminster is weighted toward Pharmacist (151 clinicians, followed by General Practice Dentistry with 94 and Dentist with 70). 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, Westminster reports roughly 3.4 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, Addiction (Substance Use Disorder) Counselor is the most prominent one with no provider currently listing a Westminster practice address, a coverage gap Westminster patients typically fill by traveling to a larger nearby hub.

For Westminster 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 Westminster, CA?

There are 1,306 registered healthcare providers in Westminster, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Westminster?

The most common specialties in Westminster are Pharmacist, General Practice Dentistry, Dentist, Behavior Technician, Marriage & Family Therapist. Pharmacist has the most providers with 151.

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.