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 88 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. Maria Rotter, INTERPRETERInterpreter1336764380
  2. Elizabeth Rottman, LPCMental Health Counselor1225636236
  3. Debbie Roubal, DDSDentist1760566533
  4. Joshua Rouch, M.D.Plastic and Reconstructive Surgery Physician1801153572
  5. Robert Rountree, MDFamily Medicine Physician1205945813
  6. Amanda RovereMassage Therapist1184900532
  7. Hillary Rowenhorst, D.C.Chiropractor1568781490
  8. Chris RowinskiSpeech-Language Pathologist1013373729
  9. Caroline Roy, LCSWClinical Social Worker1275947269
  10. Christina Roy, DIPL. O.M., LISC. ACAcupuncturist1588997076
  11. Julian Royce, MAMental Health Counselor1225653017
  12. Jason RozeskiEmergency Medicine Physician1225055270
  13. Brittany Rubin, PSYDClinical Psychologist1447920434
  14. Deborah Rubin, LCSWClinical Social Worker1720806011
  15. Alana RubinskyCase Manager/Care Coordinator1669118790
  16. Emily Rucker, D.C.Orthopedic Chiropractor1891849360
  17. Alyssa Rudawsky, LCSWClinical Social Worker1073336350
  18. Tammy Ruddick, PHARM. DPharmacist1740210384
  19. Jo RuderAddiction (Substance Use Disorder) Counselor1548206758
  20. Karen Rudy, APRN, PMHNP- BCPsychiatric/Mental Health Nurse Practitioner1629881040
  21. Suzanne Rudy, N.P.Adult Health Nurse Practitioner1407831936
  22. Nicole Rue, PSY.D.Mental Health Counselor1417323981
  23. Riley RuehlmannBehavior Technician1437963691
  24. Natalie Rufa, CCC-SLPSpeech-Language Pathologist1043082993
  25. Olivia Ruggiano, AU.DAudiologist-Hearing Aid Fitter1962388082
  26. Angela RuizMental Health Counselor1578896569
  27. Brooke RundleMental Health Counselor1710626510
  28. Melissa RupertPhysical Therapist1396160081
  29. Ilene Rusk, PH.D.Rehabilitation Psychologist1114222320
  30. Molly RuskayMental Health Counselor1407104847
  31. Derek Rusnak, MA, LPCCMental Health Counselor1851141915
  32. Maureen RussSpeech-Language Pathologist1124654546
  33. Catherine RussellMental Health Counselor1437544962
  34. George Russell, MDDermatology Physician1932178241
  35. Gillian Russell, PH.D., NCPSYAPsychoanalyst1568855369
  36. Jenevieve Russell, MA, LPC, CDProfessional Counselor1336447630
  37. Joseph RussellMental Health Counselor1710210612
  38. Sarah Russo, MA, LPCC, R-DMTMental Health Counselor1285506709
  39. Cynthia Rutledge, ED.D., CACIIIAddiction (Substance Use Disorder) Psychologist1558767764
  40. Deborah Rutt, PHD, LCSW, MSClinical Social Worker1003257015
  41. Camille Ruybal, LPCProfessional Counselor1265189864
  42. Jakki RuzichOccupational Therapist1033472394
  43. Catherine Ryan, M.D.Gynecology Physician1730295940
  44. Larry Ryan, LARRY RYAN, M.D.Psychiatry Physician1245368018
  45. Melanie Ryan, M.D.Internal Medicine Physician1356448369
  46. Michele Ryan, CACII, CPSIIAddiction (Substance Use Disorder) Counselor1134535420
  47. Susan Ryan, PHDClinical Psychologist1922260249
  48. Grace RychwalskiStudent in an Organized Health Care Education/Training Program1134088636
  49. Frances Ryder, M.A.Mental Health Counselor1114367661
  50. Scott Ryder, M.A., L.P.C., C.F.T.Professional Counselor1871641357

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.