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 99 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. Edith Stone, M.A., L.P.C.Professional Counselor1386898534
  2. Jennifer StoneMassage Therapist1922368950
  3. Judith Stone, M.A. PSYCHOLOGYCounselor1124273347
  4. Kathleen Stone, REGISTERED NURSERegistered Nurse1871981266
  5. Lisa Stone, LPCMental Health Counselor1497264790
  6. Mark StoneMental Health Counselor1093009300
  7. Rhiannon Stone-Miller, MAProfessional Counselor1578202206
  8. Catherine Stonecash, CMTMassage Therapist1164122883
  9. Sheri Stoneman, RDHDental Hygienist1093113110
  10. Janet Stonington, P.A.Medical Physician Assistant1457317174
  11. Joseph StoopsProfessional Counselor1437529658
  12. Scott Storrie, DC, L.AC, CTN, NEChiropractor1194813063
  13. Judith Story, L.AC.,Acupuncturist1902172851
  14. Otsic Stowell, DCChiropractor1750497152
  15. Elise StraderMarriage & Family Therapist1689502890
  16. Jenna StrahanSurgical Physician Assistant1669889879
  17. Virgina Strange, RNRegistered Nurse1649458092
  18. Diane Strassberg, MNTNutrition Education Nutritionist1386482586
  19. Julie Stratmeyer, OTRHand Occupational Therapist1073725842
  20. Bettina Straub, MAMental Health Counselor1902295843
  21. Meredith Strauss, MS SLP-CCCSpeech-Language Pathologist1558919720
  22. Kimberly Strenge, RNRegistered Nurse1073776845
  23. Suzanne Stricker, LACAcupuncturist1841583481
  24. Samantha Strife, PH.D.Counseling Psychologist1285410597
  25. Tyler Stroebel, L.ACAcupuncturist1790802551
  26. Macy Stromer, RBTBehavior Technician1295564292
  27. Lindsey Stuart, CNMAdvanced Practice Midwife1659793008
  28. Aaron Stuber, RNRegistered Nurse1972493609
  29. Cassidi Stuckman, LPCCMental Health Counselor1033098678
  30. Jade Studee, OTR/LOccupational Therapist1528626827
  31. Crista Studer, MS, LPC, RDN, CEDS-SMental Health Counselor1437621265
  32. Kathleen StumpfPediatric Occupational Therapist1003079096
  33. Jonathan SturtzMental Health Counselor1235382268
  34. Jennifer Su, R.PH.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1750553483
  35. Richard Suddath, M.D.Psychiatry Physician1194772996
  36. Dawn Suitts, LPCCProfessional Counselor1275335887
  37. Ann Sullivan, MSWSocial Worker1760538391
  38. Clare Sullivan, MAMental Health Counselor1457978314
  39. David Sullivan, LCSW, LACClinical Social Worker1952550402
  40. Emma SullivanPhysical Therapist1225868557
  41. Kathryn SullivanPhysician Assistant1518758689
  42. Adrienne Sulser, NDNaturopath1033833983
  43. Karen Sumey, LCSWClinical Social Worker1003579533
  44. Cathy Summer, LCSWClinical Social Worker1609426469
  45. Corbett Summers, DDSGeneral Practice Dentistry1548480486
  46. Jason SummersMassage Therapist1255773982
  47. Suzanne Sundheim, MDChild & Adolescent Psychiatry Physician1609891779
  48. Patricia Sunfield, MACounselor1710049853
  49. Amy Suplee, LACAcupuncturist1205063427
  50. Kenneth Suslak, PH.D.Clinical Psychologist1962628636

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.