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 18 of 27.

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

The 8 largest groups in Castle Rock

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. Caelin O'Brien, LCSWClinical Social Worker1497119119
  2. Brittany O'Hayre, RNRegistered Nurse1124348164
  3. Jamie ObergMassage Therapist1366774358
  4. Alvaro Ochoa, DDSGeneral Practice Dentistry1487875019
  5. Jennifer Oikle, PH DClinical Psychologist1508831249
  6. Johna OlioBehavior Technician1659964062
  7. Brianna OliverBehavior Technician1518700020
  8. Lisa Olson, R.D.Registered Dietitian1588100713
  9. Amity Onders, M.D.Family Medicine Physician1770970410
  10. Ndidi Onyema, PMHNPPsychiatric/Mental Health Nurse Practitioner1033986799
  11. Kelly OosterhousMental Health Counselor1326904814
  12. Megan OrmistonSpeech-Language Pathologist1114886272
  13. Emily Orscheln, PT, DPTOrthopedic Physical Therapist1962989426
  14. Yaritza Ortiz, LMTMassage Therapist1760337042
  15. Rebecca OrwigPharmacist1811542509
  16. Emily Osga, DPTPhysical Therapist1679071922
  17. Amy Ossian, PA-CMedical Physician Assistant1417283722
  18. Adria OwensPsychiatric/Mental Health Nurse Practitioner1144908914
  19. James Pacheco, DDSDentist1235706219
  20. Zac Packer, PT, DPTPhysical Therapist1497546949
  21. Rutvij Padhiar, DDSGeneral Practice Dentistry1154215127
  22. Gabriel Padron, CMTMassage Therapist1972707610
  23. Billy Page, DOOrthopaedic Hand Surgery Physician1912012733
  24. Kimberly Paine, NP-CFamily Nurse Practitioner1922400225
  25. Joan Palan, LCSW, LMFT, CAC IIIClinical Social Worker1750694857
  26. Anabella PalmerBehavior Technician1962076497
  27. Tonnya PalmerMassage Therapist1831416718
  28. Kimberly PanepintoRegistered Dietitian1639039316
  29. Deanna Panico, DPT, ATCPhysical Therapist1245968932
  30. David ParadaBehavior Technician1750018636
  31. Michael Parascand, D.D.S.General Practice Dentistry1467528901
  32. Sarita Parikh, MSPTPediatric Physical Therapist1134243025
  33. Amy Parker, PTPhysical Therapist1689783300
  34. Kyrzia ParkerClinical Social Worker1073032751
  35. Phillip Parker, M.D.Aerospace Medicine Physician1851340327
  36. Sarah Parkin, DOFamily Medicine Physician1972245017
  37. April ParmleySpeech-Language Pathologist1528810504
  38. Jamie Parsons-Archuletta, PT, DPT, OCSPhysical Therapist1932645454
  39. Amie PatelCase Manager/Care Coordinator1508515768
  40. Mihir Patel, M. D.Family Medicine Physician1619074382
  41. Megan Pattee, PA-CPhysician Assistant1730721770
  42. Jazmine PattersonBehavior Technician1750187936
  43. Lauren PaulBehavior Technician1518497387
  44. Manoj Pawar, MDFamily Medicine Physician1144277369
  45. Kendra Payne, FNP-BCPrimary Care Nurse Practitioner1407442882
  46. Jennifer Peck, MSW, LCSWClinical Social Worker1336760388
  47. Thomas Pedigo, PA-CPhysician Assistant1982786489
  48. Misty Peery, MSW, LCSWClinical Social Worker1881328185
  49. Justin PelkyBehavior Technician1942963871
  50. Caroline Pena, NURSE PRACTITIONERFamily Nurse Practitioner1649013814

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.