NPPES file of Aug 9, 2026

Doctors and health care providers in Westminster, CO

2,492 individual NPPES records list a practice address in Westminster, 14th of 193 Colorado cities. The largest group is family medicine physician: 192, 8% of the city's records, against 2% across Colorado. Page 28 of 50.

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 Colorado

  • Rank in Colorado14th of 193 cities by records
  • Share of the state1.7% of Colorado's records
  • Specialties present25 or more taxonomy codes
  • Top three groups18.9% of all records
  • Family Medicine Physician rank4th of the 10 Colorado cities with the most

Compared with Colorado as a whole, Westminster has 6.4× the state's share of interpreter records and 0.64× its share of behavior technician records.

Providers in Westminster, alphabetically

  1. Kylie Macdonald, BCBABehavior Analyst1417829193
  2. Alexandra Macias, LCSWClinical Social Worker1699460253
  3. Michael Macmillan, R.N.Registered Nurse1225573173
  4. Wesley MacmillanClinical Social Worker1720913247
  5. Colleen Madden, RNPsychiatric/Mental Health Registered Nurse1689793978
  6. Deanna Madrid, RNRegistered Nurse1659808095
  7. Gregory Maeder, MDFamily Medicine Physician1427387984
  8. Zoulfia Magaril, DDSGeneral Practice Dentistry1295031540
  9. Petrea Mah, LPCProfessional Counselor1457466401
  10. Kelly MahanaHealth Educator1982447363
  11. John Mahoney, M.D.Internal Medicine Physician1730223512
  12. Marianne Mahoney, LCPClinical Psychologist1629105697
  13. Leila MaisonneuveDoula1891062154
  14. Meilani Makhni, DPTPhysical Therapist1669101689
  15. Trisha Maki, CAC IIIAddiction (Substance Use Disorder) Counselor1205188703
  16. Adriana Maldonado, DPTPhysical Therapist1497453039
  17. Justin Male, M.A.Mental Health Counselor1184985731
  18. Jennifer Mallory, LMTMassage Therapist1134894082
  19. Kaitlin Malloy, BCBABehavior Analyst1730753583
  20. Triscia Malmstrom, NPFamily Nurse Practitioner1548390396
  21. Karen Maloney, D.O.Obstetrics & Gynecology Physician1063535946
  22. Ryan Mangrum, D.M.D.General Practice Dentistry1003147521
  23. Natalie ManigaultProfessional Counselor1508739137
  24. Thomas Mann, M.D.Orthopaedic Surgery Physician1457308447
  25. Edvin Manniko, O.D.Optometrist1326182544
  26. Jill Manning, R.N., N.P.Obstetrics & Gynecology Nurse Practitioner1386663995
  27. Kristy Manning, CMTMassage Therapist1861700635
  28. Bryn Manns, M.A.Student in an Organized Health Care Education/Training Program1528901808
  29. Monica Maquignaz, OTR/LOccupational Therapist1063900454
  30. Erin Marcum, M.D.Hospitalist Physician1932361706
  31. Emese Marczin, PHARMDPharmacist1801251277
  32. Connie Maring, R.M.T.Mechanotherapist1083921449
  33. Joanne Marion, RPHPharmacist1750603601
  34. Marisa MarottaStudent in an Organized Health Care Education/Training Program1306672928
  35. Matthew Marrington, D.O.Physical Medicine & Rehabilitation Physician1689021339
  36. Arturo MarroquinInterpreter1114347390
  37. Kim MarsdenSpecialist1124361225
  38. Felicia Marsh, MA LPCProfessional Counselor1407370430
  39. Maria Marshall, CRNACertified Registered Nurse Anesthetist1871128736
  40. Timothy Marshall, PAMedical Physician Assistant1023145091
  41. James Martau, MDGeriatric Medicine (Internal Medicine) Physician1053335166
  42. Jordan Martell, PHDCounseling Psychologist1811501315
  43. Ashley Martin, M.S. CCC-SLPSpeech-Language Pathologist1720418494
  44. Faith MartinBehavior Technician1538867304
  45. Mary MartinMental Health Counselor1477028298
  46. Rachel Martin, DOStudent in an Organized Health Care Education/Training Program1700724416
  47. Shannaw Martin, LMTMassage Therapist1508393380
  48. Jessica Martineau, PAPhysician Assistant1518361096
  49. Alejandra MartinezClinical Social Worker1215731732
  50. Carmen MartinezInterpreter1578237632

The largest Colorado cities

  1. Denver25,068
  2. Colorado Springs19,771
  3. Aurora17,400
  4. Fort Collins6,928
  5. Boulder5,635

All of Colorado →

How to read this directory

Westminster, Colorado appears in the CMS National Plan and Provider Enumeration System with 2,492 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 Family Medicine Physician (192 clinicians, followed by Physical Therapist with 151 and Behavior Technician with 129). 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 Colorado's population, Westminster reports roughly 42.4 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.

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, CO?

There are 2,492 registered healthcare providers in Westminster, CO, 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 Family Medicine Physician, Physical Therapist, Behavior Technician, Clinical Social Worker, Professional Counselor. Family Medicine Physician has the most providers with 192.

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.