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 37 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. Cheryl Gibbons, OTR/LPediatric Occupational Therapist1831733732
  2. Sara GibbonsMental Health Counselor1366876997
  3. Michelle Gibbs, NNPNeonatal Nurse Practitioner1629056478
  4. Ann GibsonNutrition Education Nutritionist1932406808
  5. Sarah Gibson, MA, LPC, CACIIProfessional Counselor1124519426
  6. Gwendolyn Gielow, LCSWClinical Social Worker1689730483
  7. Anne Giesen, DOGeriatric Medicine (Family Medicine) Physician1851408926
  8. Nathaniel Gilbert, MACounselor1437318656
  9. Brenda Gilchrist, O.D.Optometrist1326453978
  10. Richard Gildersleeve, MDAnesthesiology Physician1023044369
  11. Anne Giles, LPCCCounseling Psychologist1669273462
  12. Kelly GiliottiAcupuncturist1497082259
  13. Devinder Gill, LMTMassage Therapist1275056681
  14. Jasjit Gill, RPHPharmacist1790992550
  15. Kristi Gill, D.O.Neurology Physician1750514261
  16. Melissa GillespieEmergency Medicine Physician1649208471
  17. Kirby GillispieMental Health Counselor1932690518
  18. Gina Gills, MSW, LCSWClinical Social Worker1851604938
  19. Eliza Gilmore, LPCProfessional Counselor1144952987
  20. Tennyson Gilpatrick, PT,DPTPhysical Therapist1114554110
  21. Bernadette Gimpel, LMFTMarriage & Family Therapist1952573214
  22. Elise Ginsburg, PHD.Clinical Psychologist1942478425
  23. Steven Gioielli, PSYDClinical Psychologist1356782676
  24. John Gipple, MA, CAC IIIAddiction (Substance Use Disorder) Counselor1699165845
  25. Igor Giusti, MA, ABD, CAC IMental Health Counselor1518481746
  26. William GladneyInternal Medicine Physician1548722820
  27. Sharon Glass, NNPNeonatal Nurse Practitioner1760460539
  28. Marci Gleicher, NPPsychiatric/Mental Health Nurse Practitioner1447496393
  29. Marisa Glen, OTR/L, MPHOccupational Therapist1245682822
  30. Lesley GlennerMental Health Counselor1831419662
  31. Ben Glennon, RPHPharmacist1396022992
  32. Emily Glick, OTR/LPediatric Occupational Therapist1780394973
  33. Soma Glick, LIC.AC, D.O.M.Acupuncturist1679909519
  34. Lauren Glinsky, CCC-SLPSpeech-Language Pathologist1912418427
  35. Julia Glosserman, LPCCMental Health Counselor1447178223
  36. Yulia Glotzer, NUTRITIONIST, CNSNutritionist1447934393
  37. Leslie Glover, FNPRegistered Nurse1801043039
  38. Nicole GlowackiBehavior Technician1639744451
  39. Jason Glowney, MDSports Medicine (Orthopaedic Surgery) Physician1922264175
  40. Rachael GlustromSpeech-Language Pathologist1689527640
  41. Alisha GockeMental Health Counselor1245958925
  42. Caitlin Goddard, MA, LPCMental Health Counselor1922752849
  43. Daniel Godfrey, LPNLicensed Practical Nurse1558523639
  44. Candace Godwin, MPTPhysical Therapist1255498929
  45. Debra GoegleinMental Health Counselor1124302203
  46. David Goetz, CMTMassage Therapist1780310987
  47. Sheila Goetz, M.A. CCC-SLPSpeech-Language Pathologist1528046497
  48. Maya Golan, MA, LPCProfessional Counselor1558950675
  49. Charles Gold, PTPhysical Therapist1295717916
  50. Nancy Goldaper, LPCAddiction (Substance Use Disorder) Counselor1316040108

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.