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 52 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. Anne Kane, RNCommunity Health Registered Nurse1376257329
  2. Cynthia KaneStudent in an Organized Health Care Education/Training Program1962353367
  3. Krupaben KaneriaPhysical Therapist1790144632
  4. Jacob KannerMental Health Counselor1932450699
  5. Jeremiah Kaplan, M.D.Internal Medicine Physician1396872347
  6. Leah Kaplan, LPCProfessional Counselor1821468315
  7. Tanya KaplanClinical Social Worker1356586358
  8. Ramona Karam, MA, LPC-CMental Health Counselor1356583199
  9. Lydia KarbumSpeech-Language Pathologist1689220931
  10. Lauren Karcher, DNP, FNP-BC, IBCLCFamily Nurse Practitioner1144854795
  11. Brigitta Karelis, M.A., LPCProfessional Counselor1023339116
  12. Andre Karkamaz, MA, LPCProfessional Counselor1891469466
  13. Janet Karlicek, RDHDental Hygienist1619229796
  14. Shawn KarnsPhysician Assistant1275776700
  15. Matthew Karowe, M.D.Gastroenterology Physician1851310478
  16. Jenny KarpMassage Therapist1912239872
  17. Alexis Karris, M.A.Cognitive & Behavioral Psychologist1518176163
  18. Taylor Karty, ATCAthletic Trainer1184192262
  19. Rebecca Kasperbauer, PA-CPhysician Assistant1386983542
  20. Rebecca Kass, MDPsychiatry Physician1528696333
  21. Sarah Kassabian, PHDClinical Psychologist1932893492
  22. Gabrielle Kater, L.AC.Acupuncturist1437703824
  23. Adam Katz, MDStudent in an Organized Health Care Education/Training Program1578343851
  24. Cassandra Katz, LCSW CACIIIClinical Social Worker1336404367
  25. Evan Katz, DCChiropractor1649494600
  26. Eve Katz, LPCProfessional Counselor1871884767
  27. Samuel KatzMassage Therapist1710574843
  28. Seana Katz, DCChiropractor1588960306
  29. Kimberly KaufmanAddiction (Substance Use Disorder) Counselor1073901807
  30. Vyga Kaufmann, PHDPsychologist1467879908
  31. Stephanie KavonCounselor1043682198
  32. Michael Kawulok, DDSGeneral Practice Dentistry1336751213
  33. Ted Kawulok, D.D.S.Dentist1245223593
  34. Kathryn Kaye, PSY.D.Psychologist1811079494
  35. Peter Kaye, M.D., F.A.C.G.Gastroenterology Physician1114946639
  36. Carla Keahey, ACNS, FNPFamily Nurse Practitioner1750442323
  37. Brian Keating, LPCCounselor1306314620
  38. Mary Ann Keatley, PH.D.Speech-Language Pathologist1720035306
  39. Noah Keats SallMental Health Counselor1194230128
  40. Kaitlin KeeleyProfessional Counselor1447130984
  41. Tyler Keeter, DPT, MHAPhysical Therapist1821276486
  42. John Kefer, MD PHDUrology Physician1174799837
  43. Benjamin Keidan, MDInternal Medicine Physician1316032584
  44. Marybeth Keigher Mac., ACUPUNCTURE M.AC.Acupuncturist1669418653
  45. Amanda Keim, LPCProfessional Counselor1578642492
  46. Carole Keim, MDPediatrics Physician1598045346
  47. Amy Keleher, MAProfessional Counselor1457069544
  48. Sarah KeleherSpeech-Language Pathologist1255276093
  49. Donald Keller, MDOphthalmology Physician1275570038
  50. Jessie KellerMental Health Counselor1144653627

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.