Ryan Peterson, MD
NPI 1912434432 · Family Medicine Physician · Castle Rock, CO
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Peterson, MD is a Family Medicine Physician provider in Castle Rock, CO (NPI 1912434432).
Provider details
- NPI number
- 1912434432
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 438 | 148 |
| Rosuvastatin Calcium | 288 | 100 |
| Levothyroxine Sodium | 288 | 91 |
| Lisinopril | 244 | 86 |
| Tamsulosin Hcl | 211 | 75 |
| Amlodipine Besylate | 195 | 65 |
| Meloxicam | 190 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-05-15
- Last updated
- 2021-06-17
- Certified
- 2021-06-17
Frequently asked questions
- What is Ryan Peterson's NPI number?
- Ryan Peterson's National Provider Identifier (NPI) is 1912434432, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Peterson's specialty?
- Ryan Peterson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Peterson located?
- Ryan Peterson's practice location on file with NPPES is 4318 Trail Boss Dr Ste 100, Castle Rock, CO 80104-7512.
- What is Ryan Peterson's phone number?
- The practice phone number listed in the NPPES registry for Ryan Peterson is (303) 338-4545.
- Does Ryan Peterson accept Medicare?
- Ryan Peterson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Peterson's NPI active?
- Yes — Ryan Peterson's NPI (1912434432) is active in the NPPES registry as of the last update on 2021-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.