NPPES file of Aug 9, 2026

Doctors and health care providers in Boulder, CO

5,635 individual NPPES records list a practice address in Boulder, 5th of 193 Colorado cities. The largest group is mental health counselor: 1,009, 18% of the city's records, against 6% across Colorado. Page 110 of 113.

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

The 8 largest groups in Boulder

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

Boulder in Colorado

  • Rank in Colorado5th of 193 cities by records
  • Share of the state3.8% of Colorado's records
  • Specialties present25 or more taxonomy codes
  • Top three groups29.4% of all records
  • Mental Health Counselor rank2nd of the 10 Colorado cities with the most

Compared with Colorado as a whole, Boulder has 3.9× the state's share of acupuncturist records and 0.47× its share of behavior technician records.

Providers in Boulder, alphabetically

  1. Lauren WilkinsMental Health Counselor1942590468
  2. Linda Wilkinson, PH.D, LPCProfessional Counselor1154429801
  3. Lindsey Wilkinson, LPCCMental Health Counselor1669028619
  4. Justin WillcoxsonChiropractor1073086567
  5. Allicia Williams, PHARMDPharmacist1841632700
  6. Andi WilliamsMental Health Counselor1285275453
  7. Angus Williams, PHARM DPharmacotherapy Pharmacist1780375568
  8. Annie Williams, PHARMDPharmacist1467805697
  9. Chad Williams, P.T.Physical Therapist1467614719
  10. Donald Williams, L.P.C.Professional Counselor1952568057
  11. Ephesia Williams, RBTBehavior Technician1144063173
  12. Erin Williams, MS CN LMPNutritionist1407258437
  13. Laura WilliamsMental Health Counselor1295138089
  14. Melissa WilliamsAudiologist1992430094
  15. Paris WilliamsBehavior Technician1558205658
  16. Sarah Williams, NCBTMBMechanotherapist1316284037
  17. William Williams, MDOrthopaedic Surgery Physician1770532905
  18. Carolyn Williams-Orlando, PHDMental Health Counselor1952941635
  19. Benjamin Williamson, NPAdult Health Nurse Practitioner1740905926
  20. Suzanne Williamson, D.C.Sports Physician Chiropractor1851339733
  21. Leandra Wills, MAMarriage & Family Therapist1669592820
  22. Bettina Willuhn, P.A.Physician Assistant1417016437
  23. Elizabeth WilmerMental Health Counselor1720452378
  24. Gillian Wilschke, MAMarriage & Family Therapist1356483853
  25. Carmen Wilson, MTMassage Therapist1023459070
  26. Donna Wilson, LCSWClinical Social Worker1750261244
  27. Heidi Wilson, MBA, MA, LPC, CACIIProfessional Counselor1275768285
  28. John Wilson, D.C.Nutrition Chiropractor1134340326
  29. Kaylee Wilson, RBTBehavior Technician1841899143
  30. Maryanne Wilson, PTPhysical Therapist1508567090
  31. Renee Wilson, MA, LPCMental Health Counselor1225161714
  32. Taylor Wilson, MFTCMarriage & Family Therapist1417816216
  33. Tracy Wilson, RNRegistered Nurse1265853055
  34. Amy Winchester, MA, LPCProfessional Counselor1841518503
  35. Cassidy WinchipSocial Worker1508239013
  36. Marc WindChiropractor1700086279
  37. Shari Wind, LPCMental Health Counselor1194236299
  38. Thomas Windham, PHDClinical Psychologist1467648113
  39. Lauren Winer, L.AC.Acupuncturist1437692365
  40. Robert Winer, MDPsychiatry Physician1689640542
  41. Meghan WingetSpeech-Language Pathologist1437685286
  42. Megan Wingfield, MDAnesthesiology Physician1073018222
  43. Lindy Winkelbauer, DCChiropractor1962591057
  44. Amy Winkelman, RDProfessional Counselor1043599921
  45. Brittany Winkler, LPCCMental Health Counselor1255111993
  46. Claudia WinklerMental Health Counselor1992012801
  47. Joel Winner, M.D.Psychiatry Physician1356550131
  48. Heidi Winquist, D.D.S.General Practice Dentistry1124097506
  49. Julian WinsteadMental Health Counselor1528375664
  50. Marshall Winter, LPCMental Health Counselor1861103699

The largest Colorado cities

  1. Denver25,068
  2. Colorado Springs19,771
  3. Aurora17,400
  4. Fort Collins6,928
  5. Lakewood4,944

All of Colorado →

How to read this directory

Boulder, Colorado appears in the CMS National Plan and Provider Enumeration System with 5,635 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 Boulder - 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 Boulder 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 Boulder is weighted toward Mental Health Counselor (1,009 clinicians, followed by Professional Counselor with 334 and Clinical Social Worker with 316). 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, Boulder reports roughly 95.9 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 Colorado's most common specialties, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Boulder practice address, a coverage gap Boulder patients typically fill by traveling to a larger nearby hub.

For Boulder 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 Boulder, CO?

There are 5,635 registered healthcare providers in Boulder, CO, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Boulder?

The most common specialties in Boulder are Mental Health Counselor, Professional Counselor, Clinical Social Worker, Physical Therapist, Behavior Technician. Mental Health Counselor has the most providers with 1,009.

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.