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 95 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. Bonnie SlaterDoula1932537974
  2. Gerald SlavecPharmacist1124364153
  3. Mary Slaven, OTHand Occupational Therapist1548022825
  4. Jennifer Sleek, MAProfessional Counselor1124318621
  5. Jennifer Sleeper, M.A., SLP, CCCSpeech-Language Pathologist1871840629
  6. Angela Sloan, CSFASurgical Physician Assistant1689147555
  7. Julia Slomovic, NONEBehavior Technician1114665445
  8. Abbigail Smajda, PA-CSurgical Physician Assistant1326697673
  9. Stephanie Small, LCSWSocial Worker1285855825
  10. Jamie Smalley, MA, LPCSchool Counselor1104223239
  11. Lauren Smart, LPCProfessional Counselor1962774562
  12. Brigitte Smit, RDNRegistered Dietitian1215520200
  13. Alexis SmithPsychiatric/Mental Health Nurse Practitioner1922356278
  14. Amanda Smith, LCSWClinical Social Worker1316291230
  15. Amy Smith, PHD, LMFTMarriage & Family Therapist1598342354
  16. Anna Smith, MSW, RP, RYT500Social Worker1336799196
  17. Benjamin SmithCommunity Health Worker1487804787
  18. Beth Smith, M.A.Mental Health Counselor1104946953
  19. Cameron SmithMental Health Counselor1760609051
  20. Cameron Smith, CNIMElectroneurodiagnostic Specialist/Technologist1932645215
  21. Cindy Smith, LCSWClinical Social Worker1003257973
  22. Cristin Smith, MSWClinical Social Worker1730550369
  23. Dade Smith, PT, DPTOrthopedic Physical Therapist1174818132
  24. Danielle SmithCase Manager/Care Coordinator1619616489
  25. Darvin Smith, MDEmergency Medicine Physician1760546808
  26. Elizabeth Smith, M.A., CCC-SLPSpeech-Language Pathologist1922030691
  27. Elizabeth SmithRegistered Nurse1003736968
  28. Emma SmithBehavior Technician1215669643
  29. Forrest SmithBehavior Technician1093385130
  30. Holly Smith, M.AMental Health Counselor1437555281
  31. Hunter Smith, M.D.Pulmonary Disease Physician1174616130
  32. Jeffrey Smith, O.D.Optometrist1730229170
  33. Jessica SmithCounselor1962557660
  34. Jonathan Smith, DDSDentist1659712206
  35. Joshua SmithMental Health Counselor1013209477
  36. Karissa Smith, L.A.C. , RNAcupuncturist1316585045
  37. Kathleen Smith, LPCMental Health Counselor1720429012
  38. Ki SmithMental Health Counselor1194493098
  39. Laura Smith, M.P.T.Physical Therapist1356641641
  40. Laura Smith, PA-CPhysician Assistant1629329487
  41. Maggie SmithSpecialist1285005496
  42. Matthew Smith, DPTPhysical Therapist1447646781
  43. Michelle SmithMental Health Counselor1578710034
  44. Ora-Louise SmithMental Health Counselor1437602042
  45. Raeann Smith, NPAdult Health Nurse Practitioner1720719578
  46. Vassi SmithMental Health Counselor1154848851
  47. Zach SmithBehavior Technician1053270058
  48. Jason Smouse, M.D.Anatomic Pathology & Clinical Pathology Physician1578597225
  49. Victoria SnellPhysical Therapist1265949069
  50. Dan Snider, PTAPhysical Therapy Assistant1528461696

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.