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 39 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. Debbie Gould, MS, LCSWMental Health Counselor1962640185
  2. Miranda Gould, LSW #0009925525Social Worker1861214777
  3. Regina Gould, MA,CCC-AAudiologist-Hearing Aid Fitter1457757379
  4. Marc Goulet, MA, NCC, LPCCMental Health Counselor1780383703
  5. Maxine GowerClinical Social Worker1407025778
  6. Jordan Gozdzialski, M.D.Anesthesiology Physician1083029011
  7. Gwendolyn Grace, M.D.Psychiatry Physician1194925594
  8. Brian Gradisek, D.P.M.Podiatrist1700178092
  9. James Grady, M.D.Pulmonary Disease Physician1144204850
  10. Leslie Grady, P.A.Medical Physician Assistant1114902640
  11. Colleen Grady Yuskewich, OTRSpecialist1770702565
  12. Julie Graff, LCSWMental Health Counselor1457797524
  13. Joseph GraffagninoBehavior Technician1699484691
  14. Samantha Graffeo Gardner, DDSPediatric Dentistry1952954620
  15. Andrew GrahamParamedic1063375210
  16. Brad Graham, M.ED., LPCProfessional Counselor1770350605
  17. Connor Graham, M.D.Internal Medicine Physician1669421301
  18. Joanne GrahamPediatric Occupational Therapist1043427461
  19. McKenna Graham, PA-CPhysician Assistant1982459707
  20. Trevor Graham, PSY.D.Clinical Psychologist1063571180
  21. Vicky Graham, O.D.Optometrist1649319237
  22. Vivienne GramzaBehavior Technician1003610882
  23. Johanna Granger, LACAcupuncturist1518482413
  24. Dayna Granston, RN, RXN, CNS, APRNAdult Psychiatric/Mental Health Clinical Nurse Specialist1639199235
  25. Raegan GrantMental Health Counselor1174134647
  26. Amber GranthamMental Health Counselor1255870572
  27. John Grantham, M.D.Diagnostic Radiology Physician1992789614
  28. Andrea Grasmick, LPCCMental Health Counselor1477224707
  29. Cheryl Grasmick, P.A.Physician Assistant1417930314
  30. Mark Grassman, MSWClinical Social Worker1922121003
  31. Devon GratsonMental Health Counselor1790670859
  32. Susan GravesMarriage & Family Therapist1114379583
  33. Timothy Graves, PA-CPhysician Assistant1780865824
  34. James Gray, LCSWMental Health Counselor1467138131
  35. Keaton Gray, LCSWClinical Social Worker1952078701
  36. Regina Gray, MSWClinical Social Worker1295846491
  37. Mark Graycar, D.C., D.N.F.T.Chiropractor1013130830
  38. Janet GraysenCase Manager/Care Coordinator1346459054
  39. Amelia Greacen, LIC AC, DIPL AC, CHAcupuncturist1346294410
  40. Kelly Grebe, B.S.Mental Health Counselor1083039424
  41. Alan Green, DDSGeneral Practice Dentistry1174645345
  42. Christina Green, MASpecialist1972831097
  43. Daniel GreenMental Health Counselor1447649124
  44. Justin Green, M.D.Physical Medicine & Rehabilitation Physician1841355971
  45. Melissa GreenCounselor1093120628
  46. Oleander Green, AUDAudiologist1821839028
  47. Stacy Green, M.D.General Practice Physician1558686162
  48. Holly Greenberg, MSW, LCSWClinical Social Worker1477862746
  49. Jalen Greene, RBTBehavior Technician1699507152
  50. Julie Greene, LPCProfessional Counselor1063535920

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.