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 89 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. Susan Ryder, LCSWMental Health Counselor1578815577
  2. Paul RyersonMental Health Counselor1972891968
  3. Jeffrey Ryg, PT, DPTOrthopedic Physical Therapist1346367091
  4. Dylan Sabb, MDFamily Medicine Physician1326675976
  5. Karly Saber, MFTCMarriage & Family Therapist1356220206
  6. Jessica Sabo, MAMental Health Counselor1730555160
  7. Lauren SaboSpecialist1518205707
  8. Elise Sachs, LAC, LCHAcupuncturist1396889762
  9. David Sadeghi, DCChiropractor1336279124
  10. Parisa Safdarzadeh HaghighiFamily Nurse Practitioner1952028797
  11. Elisa Safran, LMTMassage Therapist1013384940
  12. Mark Saggio, DDSGeneral Practice Dentistry1255497335
  13. Sina Saidi, M.D.Psychiatry Physician1952348161
  14. Lori Saige, P.T.Physical Therapist1205972379
  15. David SaintsingEmergency Medicine Physician1366556482
  16. Jan Sakamoto, M.A.Audiologist1619029774
  17. Michael Sakowich, DIPL. O.M.Acupuncturist1902083041
  18. Erica SalaisMental Health Counselor1407248040
  19. Karen SalamancaBehavior Technician1043977044
  20. Craig Salerno, MA, LPC, LACMental Health Counselor1023406865
  21. Julia Salinger, PHDPsychologist1992351373
  22. Taylor SalleeMental Health Counselor1396372462
  23. Marian Salley, LCSW LAC CGP ACSClinical Social Worker1538477351
  24. Kathleen Salmon, LCSWClinical Social Worker1982050027
  25. Mary Margaret Saltiel, MSW, LCSWClinical Social Worker1922741438
  26. Robin Saltonstall, PHDMechanotherapist1952574360
  27. Brenda Sampson, LPCCProfessional Counselor1437951407
  28. Cara SamsCounselor1538321443
  29. Laura SamuelsonMental Health Counselor1588234694
  30. Inigo San-Millan, PHDRehabilitation Practitioner1114435252
  31. Michelle SanayPsychiatric/Mental Health Nurse Practitioner1750895306
  32. Robert Sancetta, MDFamily Medicine Physician1154579589
  33. Alexandra SandersMental Health Counselor1639302102
  34. Donald SandersClinical Pharmacology Physician1104027119
  35. Holly SandersMental Health Counselor1164645032
  36. Julie Sanders, CD(DONA)Doula1356088298
  37. Kate SandersNurse's Aide1518492636
  38. Luke Sanders, DDSDentist1700467511
  39. Dominic Sandoval, MTMassage Therapist1073204152
  40. Michael Sandoval, PHARMDPharmacist1538443262
  41. Kolby Sands, FNP-CFamily Nurse Practitioner1043974165
  42. Guy Sandy, DCChiropractor1720246192
  43. Sarah Sandy, MNTNutritionist1588011308
  44. Eugenia Sanford, MA, LPCCMental Health Counselor1083341374
  45. Virginia SanfordMental Health Counselor1760909618
  46. Shelby SanichMental Health Counselor1902474059
  47. Rachel Sanqunetti, DPTPhysical Therapist1073436788
  48. Brittany Santeford, DCChiropractor1598440935
  49. Francisco SantiagoMental Health Counselor1750861803
  50. Gabriel Santiago, MAMental Health Counselor1659843829

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.