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 47 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. Nicholas HopperKinesiotherapist1952239253
  2. Robert Hopper, PH.D.Clinical Psychologist1477661213
  3. Jennifer Hoppert, CNTPNutritionist1225510720
  4. Sara Horn, MA, LPCProfessional Counselor1881205466
  5. Georgia HorneClinical Social Worker1285500587
  6. Evalie Horner, MA, LPCMental Health Counselor1801392931
  7. Jillian Horner, MDFamily Medicine Physician1265567952
  8. Phillip Horner, LCSWClinical Social Worker1003285719
  9. Rachel Horner, L.ACAcupuncturist1568004273
  10. Charles Horowitz, PH.D.Mental Health Counselor1265055784
  11. Emily Horowitz, MAProfessional Counselor1760646103
  12. Esther Horowitz, LPCMental Health Counselor1013731835
  13. Hannah Horowitz, MAMental Health Counselor1942879499
  14. Giles Horrocks, DDSPeriodontics1720137110
  15. Nancy Horstmann, PHDClinical Psychologist1184669343
  16. Adam Horwitz, DNPPsychiatric/Mental Health Nurse Practitioner1386175107
  17. Elizabeth Hosaka, NPAcute Care Nurse Practitioner1912710344
  18. Karin Hoskin, CPMMidwife1932315033
  19. Laurie Houde, RNRegistered Nurse1649458084
  20. Roman Hought, DMDOral and Maxillofacial Pathology Dentistry1700949708
  21. Teresa House, B. S.Social Worker1851441125
  22. Catherine Houston, LPCProfessional Counselor1679706287
  23. Abby Howard, MSW, LCSWClinical Social Worker1316290398
  24. Brian Howard, DDSGeneral Practice Dentistry1427274380
  25. Gary HowardMental Health Counselor1356530679
  26. Kevin Howard, DPTPhysical Therapist1821526070
  27. Bill HowePsychologist1932325099
  28. Christine Howell, PHDPsychologist1528334307
  29. Rebecca HowieMental Health Counselor1508255845
  30. Ashley HowiseyStudent in an Organized Health Care Education/Training Program1275484149
  31. Anne Howland, M.A.Mental Health Counselor1679964563
  32. Sara Howland, RNRegistered Nurse1265246219
  33. William Howland, M.D.Anatomic Pathology & Clinical Pathology Physician1134189319
  34. Marc HoyleRegistered Nurse1962537001
  35. Emily HoytMental Health Counselor1033760590
  36. Rebecca HoytClinical Social Worker1780752790
  37. Jeanette Hrubes, P.T.Physical Therapist1851405963
  38. Madeline HubbardNurse's Aide1538613484
  39. Mayasa Hubbard, LCSWMental Health Counselor1780943183
  40. Susan Hubbard, L.C.S.W.Clinical Social Worker1578744686
  41. Dina Huber, MA, LPCC, NCCMental Health Counselor1538811666
  42. Marie-Luise HuberHealth & Wellness Coach1144158056
  43. Gary Hubiak, DDSGeneral Practice Dentistry1770835118
  44. Katherine Huckabee, PAPhysician Assistant1437492063
  45. Mathew Hudgens, CMT, LACAcupuncturist1558540302
  46. Kellie HudsonHome Modifications Contractor1336501154
  47. Susan Hudson, NPPsychiatric/Mental Health Nurse Practitioner1396390480
  48. Aaron Hudyma, PH.D.Psychologist1730847146
  49. Elizabeth Huebner, PA-CPhysician Assistant1437622289
  50. Benjamin HueftleOccupational Therapy Assistant1548550205

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.