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 22 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. Ty Shettron, FNPFamily Nurse Practitioner1659709574
  2. Kristin Shields, MDCritical Care Medicine (Obstetrics & Gynecology) Physician1174848154
  3. Greg Shim, L.AC., DIPL.O.M.Acupuncturist1992767743
  4. Samera Shim, LECommunity Health Worker1669041166
  5. Christy Short, PMHNP-BC, APRN, MSNPsychiatric/Mental Health Nurse Practitioner1497472955
  6. Nicholas Shriver, MDFamily Medicine Physician1669040713
  7. Amy Sides, DPTPhysical Therapist1730396797
  8. Rachel Sikkema, DPTPhysical Therapist1992306617
  9. Liliana SilvaBehavior Technician1922670637
  10. David Simon, M.D.Pediatrics Physician1205930302
  11. Laura Simon, M.D.General Practice Physician1346539954
  12. Tyler Simpson, DCChiropractor1851957237
  13. Jerleen Sinkes, LMFTMarriage & Family Therapist1124555248
  14. Alexio Sipiriano, REGISTERED NURSEHome Health Registered Nurse1376017491
  15. Theresa SirianniMassage Therapist1497087480
  16. Derick Skaggs, PROGRAM MANAGER SCCDay Training/Habilitation Specialist1619782737
  17. Katarina Skaggs, LPCCounselor1235968967
  18. Karen Skylar, M.S, CCC-SLPSpeech-Language Pathologist1497486039
  19. Barbara Slevin, CCC-SLPSpeech-Language Pathologist1427545581
  20. Teresa Smiley, LPC INTERNProfessional Counselor1154782860
  21. Adison SmithBehavior Technician1477476281
  22. Azure Smith, APRN, FNP-CFamily Nurse Practitioner1841766268
  23. C Paige Smith, LPCCCounselor1609222082
  24. Camilla Smith, LMFTMarriage & Family Therapist1558612440
  25. Haylee SmithBehavior Technician1730898750
  26. Heidi SmithMental Health Counselor1336843192
  27. Jennifer Smith, PTAPhysical Therapy Assistant1932452711
  28. Kristin Smith, MA CCC-SLPSpeech-Language Pathologist1538749361
  29. Megan SmithPhysical Therapist1124555784
  30. Natasha Smith, LMTMassage Therapist1619635935
  31. Shilo Smith, MDGeneral Practice Physician1114491784
  32. Tiffany SmithPharmacist1548127863
  33. Kelsey Smithart, DO, MPHOccupational Medicine Physician1780243519
  34. Irene Soesilo, DOHospitalist Physician1912062746
  35. Joshua Soldner, LPCCounseling Psychologist1992396451
  36. Barbara SolisStudent in an Organized Health Care Education/Training Program1144025933
  37. Filiberto SolisInterpreter1497569503
  38. Matthew Somerville, DPTPhysical Therapist1043555436
  39. Mary Sonnier, LPCCMental Health Counselor1184573396
  40. Teri Soto, RNMedical-Surgical Registered Nurse1548935091
  41. Shaun Soucie, D.D.S.Endodontics1780890608
  42. Myriam Spadafora, LCSWClinical Social Worker1396803094
  43. Edward Spark, PHARMDPharmacist1003100298
  44. Chelsea Spates, M.ED., BCBABehavior Analyst1891404570
  45. Sheila SpeightProfessional Counselor1174674287
  46. Stella Spencer, LPCCounselor1033899133
  47. Amy Spiegelberg, MS, CCC-SLPSpeech-Language Pathologist1265662399
  48. Katherine SpiresProfessional Counselor1720454416
  49. Ella StaceyBehavior Technician1497678262
  50. Alan Stage, MDPediatrics Physician1821044975

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.