Ryan Dean Peterson, MD
Family Medicine Physician · Castle Rock, CO
Ryan Dean Peterson, MD is a family medicine physician with a practice address in Castle Rock, Colorado, and NPI 1912434432, issued on May 15, 2017. Check the license (Colorado DR.0063473, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ryan Dean Peterson
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- DR.0063473 CO
Self-reported in NPPES; status is on the state search - Practice location
- 4318 Trail Boss Dr Ste 100, Castle Rock, CO 80104
- Phone
- (303) 338-4545
- Enumerated
- May 15, 2017
- Record last updated
- Jun 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 9000147952 CO
- Medicare enrollment
- Enrolled (PECOS I20200813003106); accepts Medicare assignment
- Medical or professional school
- University Of Arizona College Of Medicine, 2017
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,563 in Colorado → Look up another NPI →
Also registered at 4318 Trail Boss Dr Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ryan Dean Peterson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0063473Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% more Medicare Part D claims than the average family medicine physician in 2024
6,820 Medicare Part D claims for 1,039 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 290 claims were for opioids.
Most prescribed
- Atorvastatin Calcium438 claims
- Levothyroxine Sodium288 claims
- Rosuvastatin Calcium288 claims
- Lisinopril244 claims
- Tamsulosin Hcl211 claims
- Amlodipine Besylate195 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Colorado Permanente Medical Group PCCastle Rock, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Dean Peterson among 3,563 family medicine physician records in Colorado
Ryan Dean Peterson, MD is one of 3,563 family medicine physician records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 82% of them.
- NPI issued2017 · 82% of these records are older, 16% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2017 · median 2008 among the 2,077 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 family medicine physician records list a practice address in Castle Rock
They are 45 of the 1,319 NPPES records with a practice address in Castle Rock, and 3,563 family medicine physician records in Colorado.
All 3,563 in Colorado → Every provider in Castle Rock → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- John Campbell, M.D.Castle Rock, CO 801041053373415
- Christopher Carpenter, M.D.Castle Rock, CO 801041508846023
- Ann Engel, M.D.Castle Rock, CO 801041285743385
- Jack England, D.O.Castle Rock, CO 801041609856749
- Deborah Fromm, MDCastle Rock, CO 801041467492090
- Belton Hallmark, M.D.Castle Rock, CO 801041225018633
- Louis Kasunic, D.O.Castle Rock, CO 801041912083296
- Doris Kleinert, M.D.Castle Rock, CO 801041861474751
Common questions
What is Ryan Dean Peterson, MD's NPI number?
Ryan Dean Peterson, MD's National Provider Identifier (NPI) is 1912434432, issued on May 15, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Dean Peterson, MD located?
The NPPES record lists a practice address at 4318 Trail Boss Dr Ste 100, Castle Rock, CO, 80104. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.
How can I verify Ryan Dean Peterson, MD's license?
NPPES lists Colorado license number DR.0063473, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ryan Dean Peterson, MD prescribe under Medicare Part D?
In 2024, Ryan Dean Peterson, MD had 6,820 Medicare Part D claims for 1,039 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
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.