NPPES file of Aug 9, 2026

Doctors and health care providers in Castle Rock, CO

1,319 individual NPPES records list a practice address in Castle Rock, 27th of 193 Colorado cities. The largest group is behavior technician: 140, 11% of the city's records, against 8% across Colorado. Page 10 of 27.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in Castle Rock

  1. Behavior Technician140
  2. Speech-Language Pathologist120
  3. Physical Therapist99
  4. Professional Counselor65
  5. Occupational Therapist51
  6. Pharmacist47
  7. Family Medicine Physician45
  8. Clinical Social Worker44

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Castle Rock in Colorado

  • Rank in Colorado27th of 193 cities by records
  • Share of the state0.9% of Colorado's records
  • Specialties present25 or more taxonomy codes
  • Top three groups27.2% of all records

Compared with Colorado as a whole, Castle Rock has 3.2× the state's share of speech-language pathologist records and 0.47× its share of registered nurse records.

Providers in Castle Rock, alphabetically

  1. Tammy Gustafson, LPCProfessional Counselor1861791303
  2. Amanda Gutierrez, MA, CCC-SLPSpeech-Language Pathologist1396495156
  3. Michael Guzzetta, MS CCC-SLPSpeech-Language Pathologist1922887678
  4. Allison Guzzo, BCBABehavior Analyst1326462029
  5. Jennifer HaberkornSpeech-Language Pathologist1104684687
  6. David Hahn, MDDermatology Physician1811031685
  7. Nathan Haines, LPCC, LACAddiction (Substance Use Disorder) Counselor1700615200
  8. Tracy Haines, M.D.Dermatology Physician1316129356
  9. Emilie HallBehavior Technician1386385128
  10. Emily Hall, MSOT, OTR/LOccupational Therapist1841183480
  11. Jason Hall, D.D.S.Dentist1750505434
  12. Sarah Hallett, P.T.Physical Therapist1376684225
  13. Belton Hallmark, M.D.Family Medicine Physician1225018633
  14. Hugh Hallmark, MDHospitalist Physician1154317006
  15. Michelle Hammar, MA, LPCCMental Health Counselor1457136988
  16. Mary Hammond, OTROccupational Therapist1831343177
  17. Sandra Hammond, LPCMental Health Counselor1851713226
  18. Chad Hancock, PTPhysical Therapist1699747782
  19. Sean Hannon, DCChiropractor1952896516
  20. Jamie Hanosh, MSN, APN, FNP-BCFamily Nurse Practitioner1497471197
  21. Carrie HansenProfessional Counselor1316678469
  22. Jacob Hansen, DCChiropractor1548568629
  23. Scott Harford, D.C.Chiropractor1639677321
  24. Jessica HarnessUrology Physician1598027336
  25. Allison Harris, LPCProfessional Counselor1871173013
  26. Renna HarrisRegistered Nurse1063340826
  27. Denise Harris-FrazierMassage Therapist1902425085
  28. Kristopher Hart, DDSOral & Maxillofacial Surgery (D.M.D.)1811960388
  29. Sierra HartfelderBehavior Technician1245195155
  30. Carolyn Harvey, PHARMDPharmacist1326320029
  31. Michele Harvey, R.D.Registered Dietitian1861608523
  32. Jennifer Hathaway, NP-CNurse Practitioner1467957555
  33. Raymond Hatzenbeller, DDSGeneral Practice Dentistry1255262002
  34. Sparrow HawkeBehavior Technician1366307043
  35. Larry Haws, DDSDentist1295067452
  36. Christopher Haydek, MDGastroenterology Physician1164963336
  37. Maegan Hayes, SWC, MSSWClinical Social Worker1982448817
  38. Shelah Hayes, MDEmergency Medicine Physician1699279687
  39. Christopher Healey, M.D.Pediatrics Physician1497708341
  40. Brianna HeckelmannMental Health Counselor1447809363
  41. Douglas Heckenkamp, M.P.T.Physical Therapist1285856062
  42. Jill Hefti Breed, ARNPFamily Nurse Practitioner1255438255
  43. Austin Hein, NREMT-PParamedic1306787189
  44. Kristin Heins, FNP-BC, CNMAdvanced Practice Midwife1457079196
  45. Helena Hejazi, LE, LMTMassage Therapist1932945516
  46. Erik Hekkert, DDSGeneral Practice Dentistry1437157385
  47. Anna Helfrich, RDNRegistered Dietitian1548856347
  48. Anne Hellstrom, M.S.ED., LPCMental Health Counselor1316089949
  49. Ryan Helms, D.C.Chiropractor1588875033
  50. Anneka Helsabeck, M.A., CCC-SLPSpeech-Language Pathologist1861259848

The largest Colorado cities

  1. Denver25,068
  2. Colorado Springs19,771
  3. Aurora17,400
  4. Fort Collins6,928
  5. Boulder5,635

All of Colorado →

How to read this directory

Castle Rock, Colorado appears in the CMS National Plan and Provider Enumeration System with 1,319 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 Castle Rock - 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 Castle Rock 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 Castle Rock is weighted toward Behavior Technician (140 clinicians, followed by Speech-Language Pathologist with 120 and Physical Therapist with 99). 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, Castle Rock reports roughly 22.4 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 Castle Rock practice address, a coverage gap Castle Rock patients typically fill by traveling to a larger nearby hub.

For Castle Rock 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 Castle Rock, CO?

There are 1,319 registered healthcare providers in Castle Rock, CO, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Castle Rock?

The most common specialties in Castle Rock are Behavior Technician, Speech-Language Pathologist, Physical Therapist, Professional Counselor, Occupational Therapist. Behavior Technician has the most providers with 140.

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.