Mark Powis, MD
NPI 1386771327 · Gastroenterology Physician · Lone Tree, CO
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Powis, MD is a Gastroenterology Physician provider in Lone Tree, CO (NPI 1386771327).
Provider details
- NPI number
- 1386771327
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 34877 (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
19 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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 364 | 358 |
| Omeprazole | 110 | 49 |
| Mesalamine | 63 | 17 |
| Budesonidebrand: Budesonide Dr | 41 | 17 |
| Pantoprazole Sodium | 40 | 18 |
| Azathioprine | 24 | — |
| Adalimumab-Attobrand: Amjevita(cf) Autoinjector | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-27
- Last updated
- 2021-05-23
- Certified
- 2021-05-23
Frequently asked questions
- What is Mark Powis's NPI number?
- Mark Powis's National Provider Identifier (NPI) is 1386771327, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Powis's specialty?
- Mark Powis is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Powis located?
- Mark Powis's practice location on file with NPPES is 10240 Park Meadows Dr, Lone Tree, CO 80124-5425.
- What is Mark Powis's phone number?
- The practice phone number listed in the NPPES registry for Mark Powis is (303) 338-4545.
- Does Mark Powis accept Medicare?
- Mark Powis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Powis's NPI active?
- Yes — Mark Powis's NPI (1386771327) is active in the NPPES registry as of the last update on 2021-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.