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.
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
- Caelin O'Brien, LCSWClinical Social Worker1497119119
- Brittany O'Hayre, RNRegistered Nurse1124348164
- Jamie ObergMassage Therapist1366774358
- Alvaro Ochoa, DDSGeneral Practice Dentistry1487875019
- Jennifer Oikle, PH DClinical Psychologist1508831249
- Johna OlioBehavior Technician1659964062
- Brianna OliverBehavior Technician1518700020
- Lisa Olson, R.D.Registered Dietitian1588100713
- Amity Onders, M.D.Family Medicine Physician1770970410
- Ndidi Onyema, PMHNPPsychiatric/Mental Health Nurse Practitioner1033986799
- Kelly OosterhousMental Health Counselor1326904814
- Megan OrmistonSpeech-Language Pathologist1114886272
- Emily Orscheln, PT, DPTOrthopedic Physical Therapist1962989426
- Yaritza Ortiz, LMTMassage Therapist1760337042
- Rebecca OrwigPharmacist1811542509
- Emily Osga, DPTPhysical Therapist1679071922
- Amy Ossian, PA-CMedical Physician Assistant1417283722
- Adria OwensPsychiatric/Mental Health Nurse Practitioner1144908914
- James Pacheco, DDSDentist1235706219
- Zac Packer, PT, DPTPhysical Therapist1497546949
- Rutvij Padhiar, DDSGeneral Practice Dentistry1154215127
- Gabriel Padron, CMTMassage Therapist1972707610
- Billy Page, DOOrthopaedic Hand Surgery Physician1912012733
- Kimberly Paine, NP-CFamily Nurse Practitioner1922400225
- Joan Palan, LCSW, LMFT, CAC IIIClinical Social Worker1750694857
- Anabella PalmerBehavior Technician1962076497
- Tonnya PalmerMassage Therapist1831416718
- Kimberly PanepintoRegistered Dietitian1639039316
- Deanna Panico, DPT, ATCPhysical Therapist1245968932
- David ParadaBehavior Technician1750018636
- Michael Parascand, D.D.S.General Practice Dentistry1467528901
- Sarita Parikh, MSPTPediatric Physical Therapist1134243025
- Amy Parker, PTPhysical Therapist1689783300
- Kyrzia ParkerClinical Social Worker1073032751
- Phillip Parker, M.D.Aerospace Medicine Physician1851340327
- Sarah Parkin, DOFamily Medicine Physician1972245017
- April ParmleySpeech-Language Pathologist1528810504
- Jamie Parsons-Archuletta, PT, DPT, OCSPhysical Therapist1932645454
- Amie PatelCase Manager/Care Coordinator1508515768
- Mihir Patel, M. D.Family Medicine Physician1619074382
- Megan Pattee, PA-CPhysician Assistant1730721770
- Jazmine PattersonBehavior Technician1750187936
- Lauren PaulBehavior Technician1518497387
- Manoj Pawar, MDFamily Medicine Physician1144277369
- Kendra Payne, FNP-BCPrimary Care Nurse Practitioner1407442882
- Jennifer Peck, MSW, LCSWClinical Social Worker1336760388
- Thomas Pedigo, PA-CPhysician Assistant1982786489
- Misty Peery, MSW, LCSWClinical Social Worker1881328185
- Justin PelkyBehavior Technician1942963871
- Caroline Pena, NURSE PRACTITIONERFamily Nurse Practitioner1649013814
The largest Colorado cities
- Denver25,068
- Colorado Springs19,771
- Aurora17,400
- Fort Collins6,928
- Boulder5,635
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.