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 100 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. Karin Susskind, M.D.Family Medicine Physician1093799694
  2. Lillian SutcliffeRegistered Nurse1629675921
  3. Philip Sutton, PH.D.Psychologist1376561555
  4. Tiara SuttonBehavior Technician1679089791
  5. Shawna SuzynMental Health Counselor1942855044
  6. Jeffrey Swail, M. D.Plastic Surgery Physician1245312982
  7. Kimberley Swalec, PHARMDPharmacist1235572439
  8. Paige Swales, ARNP,CNMAdvanced Practice Midwife1962640532
  9. Stephen SwanPhysician Assistant1326012618
  10. Nora Swan-Foster, MA, ATR-BC, LPCProfessional Counselor1942419437
  11. Nicholas SwannBehavior Analyst1134617780
  12. Malia Swanson, MDFamily Medicine Physician1548754419
  13. Tahnee Swanton, MA, LPCCMental Health Counselor1902505399
  14. Mark Swart, MAProfessional Counselor1487935011
  15. Mary Swayze, DPTPhysical Therapist1821418872
  16. Erik Sween, PSY.DClinical Psychologist1073991295
  17. Katrina SweeneyNutritionist1275298002
  18. Emily Sweetwine, LCSWClinical Social Worker1437847456
  19. Alicia Sweezy, M.A., L.P.C.Professional Counselor1891933990
  20. Emma Swenson, RDRegistered Dietitian1679128938
  21. Nilda SwensonMental Health Counselor1366843906
  22. Christina SwiftMental Health Counselor1508271172
  23. Leilani Swift, RN, MSN, WHCNPWomen's Health Nurse Practitioner1609063924
  24. Kristine Swisher, RNRegistered Nurse1376833798
  25. Sharon Switzer, MS PTOrthopedic Physical Therapist1659469369
  26. Patti Swope, LMFTMarriage & Family Therapist1063436400
  27. Melanie SyMental Health Counselor1891033759
  28. Lisa Sydow, M.A.Mental Health Counselor1700835402
  29. Nicole SylvestreMental Health Counselor1144690751
  30. Kristina SytaMental Health Counselor1275924375
  31. Caryn Szameitat, PTPhysical Therapist1740595214
  32. Darwin TaPharmacist1114641768
  33. Carolyn Tabak, M.D., M.P.H.Family Medicine Physician1922407170
  34. Susan Takemoto, D.D.S.General Practice Dentistry1689849440
  35. Kazuhiko Takeuchi, M.A.Mental Health Counselor1285841734
  36. Christine Talaga Morgan, M.A., L.P.C.Professional Counselor1275782096
  37. Jennifer TalagrandMental Health Counselor1265823413
  38. Pamela Talley, MDFamily Medicine Physician1346370111
  39. Elizabeth TamarenSurgical Physician Assistant1104594183
  40. Melissa TangneyBehavior Technician1083221873
  41. David Tanner, DONeuromusculoskeletal Medicine & OMM Physician1609897578
  42. Diana TanneyPediatrics Physician1477511657
  43. Tamora Tanniehill, MAProfessional Counselor1235890872
  44. Seneca Tantum, PTPhysical Therapist1982803045
  45. Yangchan TanzinNurse's Aide1891116786
  46. Mackai TapleshayMental Health Counselor1225990740
  47. Lane Taplin, LPC, ATRMental Health Counselor1346088697
  48. Judy TaubClinical Social Worker1861792319
  49. Hannah Taxman, LPCProfessional Counselor1669355806
  50. River TayaBehavior Technician1922747179

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.