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 86 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. Trevor RizorBehavior Technician1780386250
  2. Jamie Rizzo, MPTPhysical Therapist1902933088
  3. Constance Roark, R.D.N.Registered Dietitian1639521941
  4. Tomas RobaPhysical Therapist1093421380
  5. Jenna RobbertMental Health Counselor1659605764
  6. David Robbins, MAMental Health Counselor1114156908
  7. Ina Robbins, ED. D.Counseling Psychologist1952434433
  8. Martha Robbins, RNRegistered Nurse1326752825
  9. Constance RobertsClinical Social Worker1215606876
  10. Grace RobertsBehavior Technician1558093807
  11. Martin Roberts, D.D.S.General Practice Dentistry1730474727
  12. Sara Roberts, ACNPC-AGCritical Care Medicine Nurse Practitioner1851119291
  13. Stacia Roberts, CNMTMassage Therapist1356671937
  14. Stephanie Roberts, LPCProfessional Counselor1386969095
  15. Susan Roberts, MSW, LICSWClinical Social Worker1659548386
  16. William Roberts, M.D.Ophthalmology Physician1598876948
  17. Zachary Roberts, D.C.Chiropractor1861858284
  18. Alexander RobertsonProfessional Counselor1619839966
  19. Tanya Robertson, PTAPhysical Therapy Assistant1265980031
  20. Teresa Robertson, CNM RNMidwife1407966062
  21. Pamela Robichaud, DPTPhysical Therapist1023232899
  22. Abigail Robinson, LCSWClinical Social Worker1033300595
  23. Kelly Robinson, MACounselor1104143684
  24. Margaret Robinson, LCSWSocial Worker1043399652
  25. Sallie Robinson Ward, PH.D., LPCMental Health Counselor1265759286
  26. Wesley RobisonHealth & Wellness Coach1790656007
  27. Deborah Roby, RPHPharmacist1992090518
  28. Tiffany Roby, OTD, OTR/LOccupational Therapist1407629462
  29. Bryan RodriguezAcupuncturist1760981443
  30. Ivonne RodriguezBehavior Technician1437920667
  31. Marisol Rodriguez, PSYCHOTHERAPIST, CFICounselor1902240450
  32. Michele Rodriguez, MSOM, LAC, LMTAcupuncturist1154929636
  33. Yessenia Rodriguez, MAMental Health Counselor1093250409
  34. Clara Rodriguez CisnerosBehavior Technician1841116456
  35. Anna Roe, PA-CSurgical Physician Assistant1962408021
  36. Travis RoelfsMental Health Counselor1205215860
  37. Nathan Roesner, D.O.Surgery Physician1598886483
  38. C. Jack Roffis, O.D.Corneal and Contact Management Optometrist1881633352
  39. Dominik Rog, M.D.Orthopaedic Hand Surgery Physician1679863112
  40. Gregg Rogers, DDSPeriodontics1568585479
  41. Jason RogersSocial Worker1265721732
  42. Kelley Rogers, NPWomen's Health Nurse Practitioner1245408111
  43. Michael Rogers, PTPhysical Therapist1497806103
  44. Nina Rogers, M.D.Family Medicine Physician1194992198
  45. Paige Rogers, RNRegistered Nurse1720247935
  46. Keesha RohloffBehavior Technician1770397820
  47. Arrow Rojas, MA, LPC, LAC, R-DMTProfessional Counselor1083488332
  48. Jennifer Roland, P.A.Medical Physician Assistant1275675993
  49. Charles Rollins, M.D.Anesthesiology Physician1447315684
  50. Haylee Romans, BSN, RNRegistered Nurse1235806647

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.