Mark E. Powis, MD
Gastroenterology Physician · Lone Tree, CO
Mark E. Powis, MD is a gastroenterology physician with a practice address in Lone Tree, Colorado, and NPI 1386771327, issued on Feb 27, 2007. Check the license (Colorado 34877, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark E. Powis
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 34877 CO
Self-reported in NPPES; status is on the state search - Practice location
- 10240 Park Meadows Dr, Lone Tree, CO 80124
- Phone
- (303) 338-4545
- Enumerated
- Feb 27, 2007
- Record last updated
- May 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 25982583 CO
- Medicare enrollment
- Enrolled (PECOS I20081117000031); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 334 in Colorado → Look up another NPI →
Also registered at 10240 Park Meadows Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicole Adams, NPAcute Care Nurse Practitioner1770711749
- Angela Allen, AU.DAudiologist1649307653
- Sara Alley, AU.DAudiologist1720104342
- Scott Andersen, MDDiagnostic Radiology Physician1851376347
- Mei Ling Anderson, RNRegistered Nurse1043194558
- Bradley Andrews, MDOtolaryngology Physician1891822896
Verify Mark E. Powis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 34877Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average gastroenterology physician in 2024
772 Medicare Part D claims for 465 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Gavilyte-C364 claims
- Omeprazole110 claims
- Mesalamine63 claims
- Budesonide Dr41 claims
- Pantoprazole Sodium40 claims
- Azathioprine24 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 PCLone Tree, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark E. Powis among 334 gastroenterology physician records in Colorado
Mark E. Powis, MD is one of 334 gastroenterology physician records with a practice address in Colorado. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 37% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1993 · median 2003 among the 258 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 gastroenterology physician records list a practice address in Lone Tree
They are 25 of the 1,405 NPPES records with a practice address in Lone Tree, and 334 gastroenterology physician records in Colorado.
All 334 in Colorado → Every provider in Lone Tree → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Vaman Jakribettuu, MDLone Tree, CO 801241487696043
- Geoffrey Jensen, MDLone Tree, CO 801241518013143
- Lawrence Kim, M.DLone Tree, CO 801241275647414
- Hanna Kraus, MDLone Tree, CO 801241659392793
- Tom Matzakos, MDLone Tree, CO 801241619004629
- Louis Morris, MDLone Tree, CO 801241407990294
- Matthew Nichols, M.DLone Tree, CO 801241952451379
- Cary Patt, M.DLone Tree, CO 801241801900048
Common questions
What is Mark E. Powis, MD's NPI number?
Mark E. Powis, MD's National Provider Identifier (NPI) is 1386771327, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark E. Powis, MD located?
The NPPES record lists a practice address at 10240 Park Meadows Dr, Lone Tree, CO, 80124. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.
How can I verify Mark E. Powis, MD's license?
NPPES lists Colorado license number 34877, 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 Mark E. Powis, MD prescribe under Medicare Part D?
In 2024, Mark E. Powis, MD had 772 Medicare Part D claims for 465 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.