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 23 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. Cynthia Dafler, MDPsychiatry Physician1669491940
  2. Rebekah Dahl, PHARMDPharmacist1104540939
  3. Alexis Dalager, AUDAudiologist1649050048
  4. Rachel Dale, PHDSpecialist1538221783
  5. Molly DalpesAudiologist1386823391
  6. Meredith DaltonSurgical Physician Assistant1750702981
  7. John DalyBehavior Technician1659197002
  8. Kathleen Daly, M.D.Psychiatry Physician1568781698
  9. Kyle Daniel, DDSGeneral Practice Dentistry1861632044
  10. Donna Daniell, LCSWClinical Social Worker1902080526
  11. Jamie Daniels, LPNPediatrics Physician1992913156
  12. Lynn Daniels, CERTIFIED MASSAGE THMassage Therapist1023151511
  13. Margaret Daniels, LCSWClinical Social Worker1033171897
  14. Gerald DankPsychiatry Physician1578883518
  15. Jeffrey Dann, PHD., L.AC.Acupuncturist1801927793
  16. Priscilla Dann-CourtneyPrescribing (Medical) Psychologist1538371042
  17. Maya Dansie, LCSWClinical Social Worker1528440765
  18. Brian Danziger, LPCProfessional Counselor1639809437
  19. Irma Danzl, RNPsychiatric/Mental Health Registered Nurse1760577803
  20. Paul Darby, LPCProfessional Counselor1801000492
  21. Catherine Dardis, OTROccupational Therapist1356552673
  22. Ashleigh Dark, OTR/LOccupational Therapist1437466091
  23. Melissa Darnell, PT, DPTPhysical Therapist1639708365
  24. Sidarth DasariNeurology Physician1497286421
  25. Patricia Dautremont, L.AC.Acupuncturist1033160130
  26. Corrine Daves, LACAcupuncturist1740809821
  27. Sofia Davies, DO, MSFamily Medicine Physician1679078059
  28. Alexander DavisMental Health Counselor1457894925
  29. Alison Davis, NP, RNFamily Nurse Practitioner1356990691
  30. Andrea Davis, M.A.Mental Health Counselor1992113138
  31. Ashley Davis, M.A., L.P.CMental Health Counselor1942425269
  32. Beth Davis, LMFTMarriage & Family Therapist1134459340
  33. Brian Davis, MDSports Medicine (Orthopaedic Surgery) Physician1124473194
  34. Charles Davis, M.A.Mental Health Counselor1568513554
  35. David Davis, MDFamily Medicine Physician1326175365
  36. Elizabeth DavisSocial Worker1376947150
  37. Flannery Davis, LSWClinical Social Worker1891551198
  38. Gregory Davis, RPHPharmacist1073820445
  39. Helen Davis, LCSWClinical Social Worker1053074435
  40. Linda DavisClinical Social Worker1023400850
  41. Mary Davis, DPTPhysical Therapist1316149693
  42. Otavaia DavisBehavior Technician1396318994
  43. Randolph Davis, N.P.Family Nurse Practitioner1841843026
  44. Rebekah Davis, M.DIV., MA, CAS, LPCProfessional Counselor1760871008
  45. Walter Davis, DDSGeneral Practice Dentistry1154331023
  46. Amanda DawsonMental Health Counselor1063731289
  47. Jill Dawson, LPCProfessional Counselor1457723678
  48. Peter Dawson, MDPediatrics Physician1346348711
  49. Ryan Dawson, MA, LPCCounselor1700935681
  50. Brooke Day, D.C.Chiropractor1417394008

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.