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 43 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. Catherine Harrell, OTR/LGerontology Occupational Therapist1528453149
  2. Afsaneh HarrisPhysical Therapist1386838985
  3. Brooklyn HarrisCase Manager/Care Coordinator1396242608
  4. Jane HarrisMental Health Counselor1518237783
  5. Kelsey Harris, AU.D.Audiologist1790503266
  6. Krista HarrisMental Health Counselor1427816719
  7. Michael Harris, MAMental Health Counselor1356460117
  8. Michelle Harris, PTPhysical Therapist1437148343
  9. Paige Harris, MA, LPC, NCCMental Health Counselor1861118911
  10. Susie HarrisPsychiatry Physician1215037239
  11. Tramyna HarrisMental Health Counselor1427410604
  12. John Harrison, M.D.Anesthesiology Physician1093706723
  13. Lukas HarrisonBehavior Technician1134734544
  14. Mark Harrison, MDNephrology Physician1508236910
  15. Mitzi Harrison, PHYSICAL THERAPISTPhysical Therapist1790772630
  16. Sharon Harrison, MSN, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1760243042
  17. Jennifer Harrod, RXN , CNSMental Health Counselor1740314111
  18. Neville Harson, M.A.Mental Health Counselor1154538155
  19. Jennifer Hart, FNP-CFamily Nurse Practitioner1154146413
  20. Michele Hart, LPCMental Health Counselor1932951662
  21. Pamela Hart, DCChiropractor1720106503
  22. Kelly Hartig, RDNRegistered Dietitian1285112110
  23. Michael Hartin, LMTMassage Therapist1205153103
  24. Claudia Hartke, PH.D., SEPPsychologist1003241480
  25. Ronald Hartley, MDPlastic and Reconstructive Surgery Physician1649208646
  26. Sarah HartleyMental Health Counselor1457700288
  27. Whitney Haruf, MAMental Health Counselor1568613636
  28. Charla HarveyMental Health Counselor1013759869
  29. Phillip Harwood, D.D.S.General Practice Dentistry1871614651
  30. Lauren Hassan, MSWCounselor1245491893
  31. Julia Hatch, LCSWMental Health Counselor1548406861
  32. Carol Hathaway-Clark, PH.D.Psychologist1649467663
  33. Khailie HatterBehavior Technician1083380158
  34. Cassandra HauchBehavior Technician1659228823
  35. Katherine Hauge, PTPhysical Therapist1760590533
  36. Martina Hauptmann, PTPhysical Therapist1952554875
  37. Natalie HauschildBehavior Technician1558950642
  38. Monika Hauser, PHDPsychologist1659993095
  39. Ayal Hausfeld, M.A.Professional Counselor1467690776
  40. Nina Hausfeld, LPCProfessional Counselor1609377001
  41. Devin HavenerCounselor1861065864
  42. Marley Hawkins, LMTMassage Therapist1497415954
  43. Matthew Hawkins, M.D.Pulmonary Disease Physician1972621100
  44. Debbie Hayes, CMTMassage Therapist1053826446
  45. Deborah Hayes, M.A.-CCC-SLPSpeech-Language Pathologist1861513418
  46. Richard HayesSpeech-Language Pathologist1215812136
  47. Lori Hayne, P.T.Physical Therapist1366546012
  48. Jason HaysMental Health Counselor1902041056
  49. Nina HaysMental Health Counselor1043524382
  50. Zoe HaysMental Health Counselor1568914208

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.