Samuel Mast, M.D.
NPI 1780970426 · Internal Medicine Physician · Fort Collins, CO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samuel Mast, M.D. is a Internal Medicine Physician provider in Fort Collins, CO (NPI 1780970426).
Provider details
- NPI number
- 1780970426
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0053404 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% 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 | 454 | 133 |
| Levothyroxine Sodium | 353 | 99 |
| Lisinopril | 271 | 77 |
| Amlodipine Besylate | 247 | 74 |
| Losartan Potassium | 228 | 62 |
| Rosuvastatin Calcium | 226 | 78 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-06-21
- Last updated
- 2021-04-16
- Certified
- 2021-04-16
Frequently asked questions
- What is Samuel Mast's NPI number?
- Samuel Mast's National Provider Identifier (NPI) is 1780970426, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samuel Mast's specialty?
- Samuel Mast is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Samuel Mast located?
- Samuel Mast's practice location on file with NPPES is 2950 E Harmony Rd, Fort Collins, CO 80528-3419.
- What is Samuel Mast's phone number?
- The practice phone number listed in the NPPES registry for Samuel Mast is (303) 338-4545.
- Does Samuel Mast accept Medicare?
- Samuel Mast is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Samuel Mast's NPI active?
- Yes — Samuel Mast's NPI (1780970426) is active in the NPPES registry as of the last update on 2021-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.