Dr. Mark E. Powis, MD
- Part D claims, 2024
- 772
- Industry payments
- $257
- Affiliated sites
- 2
- Medical groups
- 3
- State license
- 1
- Practice address
- 10240 Park Meadows Dr, Lone Tree, CO 80124
- Practice phone
- Call (303) 649-5623
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kasier Permanente
Lone Tree, Colorado
Find Dr. Powis' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark E. Powis is a gastroenterologist in Lone Tree, Colorado
Dr. Powis practices at Kasier Permanente in Lone Tree, Colorado.
Dr. Powis' NPI, 1386771327, was assigned on February 27, 2007. Dr. Powis holds Colorado license 34877.
- NPI
- 1386771327NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436219896
- NPI enumeration date
- February 27, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (303) 649-5623
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark E. Powis practices at Kasier Permanente in Lone Tree, Colorado
Dr. Powis' primary practice is Kasier Permanente, at 10240 Park Meadows Dr, Lone Tree, CO 80124 in Douglas County. The practice phone is (303) 649-5623.
- Kasier Permanente10240 Park Meadows Dr, Lone Tree, CO 80124 · Douglas CountyPhone(303) 649-5623
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark E. Powis is affiliated with 3 sites of care and 3 medical groups
Dr. Powis' primary practice is Kasier Permanente in Lone Tree, Colorado. The medical group on file is Colorado Permanente Medical Group. Dmand AI also links Dr. Powis to 2 more medical groups, 1 group practice or clinic and 1 ambulatory surgery center, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark E. Powis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Powis practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kasier Permanente | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark E. Powis is one of 282 gastroenterologists in Colorado
Gastroenterology is Dr. Powis' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Powis is licensed in Colorado.
Specialties and state licenses
- Gastroenterology, ColoradoPrimary
Gastroenterologists near Dr. Powis
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark E. Powis' patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Powis' median patient age at 62, with 62% women.
Dr. Powis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women62%
- Men37%
Source: Dmand AI Patient Panel Data
Dr. Mark E. Powis wrote 772 Medicare Part D claims in 2024
In 2024, Dr. Powis wrote 772 Medicare Part D claims for 465 patients. 95% of them were for generic drugs. CMS names the drug for 672 of them, across 8 drugs with 11 or more claims each, at $66,290 in total drug cost. In 2023, CMS named 633 claims across 10 drugs.
Dr. Powis' Part D claims by kind of drug, 2024
- Generic730 claims95%
- Brand-name42 claims5%
Dr. Powis' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6332024: 6726%
Drugs named by CMS: 8 in 2024, 10 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Mark E. Powis takes part in Medicare
Dr. Powis accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark E. Powis received $257 in industry payments from 2017 to 2019
CMS Open Payments shows 2 general payments to Dr. Powis from 2 drug and device companies from 2017 to 2019. Food and beverage make up the largest share, 100% of the total. Olympus America Inc. paid the most, $134.
General payments to Dr. Powis by program year, 2017 to 2019
Companies that paid Dr. Powis the most, 2017 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark E. Powis's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark E. Powis
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mark E. Powis' NPI number?
Dr. Mark E. Powis' NPI number is 1386771327. It was assigned on February 27, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark E. Powis?
Dr. Mark E. Powis is a gastroenterologist in Lone Tree, Colorado. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Mark E. Powis practice?
Dr. Powis practices at 10240 Park Meadows Dr, Lone Tree, CO 80124. Dr. Powis' primary practice is Kasier Permanente in Lone Tree, Colorado. Dmand AI also links Dr. Powis to 2 medical groups, 1 group practice or clinic and 1 ambulatory surgery center.
What is Dr. Mark E. Powis' office phone number?
The practice phone on file for Dr. Powis is (303) 649-5623.
What is Dr. Mark E. Powis' medical license number?
Dr. Powis holds Colorado license 34877.
What medical group is Dr. Mark E. Powis part of?
Dr. Powis is linked to Colorado Permanente Medical Group. Dmand AI links Dr. Powis to 2 more medical groups.
Does Dr. Mark E. Powis accept Medicare?
Yes. CMS lists Dr. Powis as accepting Medicare assignment.
What drugs does Dr. Mark E. Powis prescribe most?
In 2024 Medicare Part D data, Dr. Powis' most prescribed drugs by claims were Gavilyte-C, Omeprazole and Mesalamine.
Has Dr. Mark E. Powis received payments from drug or device companies?
CMS Open Payments shows $257 in general payments to Dr. Powis from 2 companies from 2017 to 2019. The largest total came from Olympus America Inc.
How long has Dr. Mark E. Powis been practicing?
Dr. Powis graduated from medical school in 1993, 33 years ago.
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