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 27 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. Laura Downer, RDNRegistered Dietitian1922736230
  2. Brittany Downing, D.C.Chiropractor1104254697
  3. Elisha Doyen, M.A., CCC-SLPSpeech-Language Pathologist1285772749
  4. Jennifer Doyle, NNPNeonatal Nurse Practitioner1104983998
  5. Megan Doyle, PT,DPTPhysical Therapist1841918117
  6. Brittany Drach, LSW, SWCSocial Worker1003777236
  7. Joshua Drake, L.ACAcupuncturist1215280169
  8. Rebecca Drake, MS,CCC-SLPSpeech-Language Pathologist1346782661
  9. William (bill) DrakeMental Health Counselor1376774117
  10. Katherine Draper, NCCounselor1013251768
  11. Diane DrapkinSocial Worker1790191971
  12. Desiree Draws, D.C.Chiropractor1639611346
  13. Riley Dreher, D.C., M.S.Chiropractor1629965405
  14. Sabrina DreilingBehavior Technician1851862783
  15. Chester Dreiman, MDInternal Medicine Physician1013983196
  16. Elizabeth DriscollMental Health Counselor1508255282
  17. Alpha DriverMental Health Counselor1861945701
  18. Sofia Drobinskaya, MA, LPCCCounselor1255172854
  19. Karen Drucker, PSYDClinical Psychologist1154478600
  20. Rebekah DrumChiropractor1609469733
  21. Michelle Drury, MDFamily Medicine Physician1437240025
  22. Kevin Dryden, MDFamily Medicine Physician1285731240
  23. Clarissa DuboseSocial Worker1003213018
  24. Elena DuboseCounselor1144747718
  25. Sherry Dubuisson, NURSE PRACTITIONERNurse Practitioner1578517900
  26. Betsy DuckettRegistered Nurse1932315777
  27. Kelly DudaPhysical Therapist1033117320
  28. Karin Dudek, MAMental Health Counselor1922405380
  29. Braxton DudleyMental Health Counselor1962997304
  30. Marilyn DueyInternal Medicine Physician1417084484
  31. Alexander Duff, DCChiropractor1205398732
  32. Benjamen DuffyProfessional Counselor1558255919
  33. Emma Duffy, MA, CCC-SLPSpeech-Language Pathologist1659911725
  34. Shannon Duffy, MMSC, PA-CPhysician Assistant1902577604
  35. Caitlin DugganOccupational Therapist1851858633
  36. Edward Duggan, D.C.Chiropractor1952522153
  37. Coco Dughi, M.D.Internal Medicine Physician1356325013
  38. Christine DuivenMental Health Counselor1427342898
  39. Darian Duke, PHARMDPharmacist1881382588
  40. Jane Dunbar-Suwalski, RPHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1720014327
  41. Riley DuncanBehavior Technician1831660711
  42. Madeline DunganAddiction (Substance Use Disorder) Counselor1740788850
  43. Robert Dunham-Orth, LPCC.0018908Professional Counselor1588335376
  44. David Dunlap, M.A.Mental Health Counselor1336512482
  45. Leslie DunlapAthletic Trainer1922607068
  46. Malia Dunn, R.D.N.Registered Dietitian1821491382
  47. Charles Dunnell, LMT, PFTMassage Therapist1942925482
  48. Dennis Dupuis, O.D.Optometrist1467450213
  49. Laisha Duran EsparzaBehavior Technician1730055138
  50. Rosalie DurandMental Health Counselor1114389715

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.