NPPES file of Aug 9, 2026

Mark Ward Keller, MD

Cardiovascular Disease Physician · Aurora, CO

Mark Ward Keller, MD is a cardiovascular disease physician with a practice address in Aurora, Colorado, and NPI 1720074578, issued on Sep 26, 2005. Check the license (Colorado 31782, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1720074578
Name
Mark Ward Keller
Credential
MD
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
31782 CO
Self-reported in NPPES; status is on the state search
Practice location
12605 E 16TH Ave, Aurora, CO 80045
Phone
(720) 848-4000
Enumerated
Sep 26, 2005
Record last updated
Oct 4, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicaid ID
01317825 CO
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 12605 E 16TH Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Benjamin Aakre, MDAnesthesiology Physician1407140395
  2. Alec Aaronson, DOPsychiatry Physician1972065233
  3. Mona Abaza, MDOtolaryngology Physician1043313844
  4. Meagan AbbagnaroAnesthesiologist Assistant1851254262
  5. Jean Abbott, MDEmergency Medicine Physician1578672820
  6. Adam Abraham, MDInternal Medicine Physician1720178304

Verify Mark Ward Keller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license 31782
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

29% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

2,175 Medicare Part D claims for 289 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Mark Keller2,175
  2. Specialty average3,078

Most prescribed

  1. Atorvastatin Calcium203 claims
  2. Metoprolol Succinate166 claims
  3. Eliquis132 claims
  4. Rosuvastatin Calcium123 claims
  5. Amlodipine Besylate118 claims
  6. Metoprolol Tartrate106 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.

The MIPS final score for 2023 (Medicare payment program): 97.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score86.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Mark Ward Keller among 332 cardiovascular disease physician records in Colorado

Mark Ward Keller, MD is one of 332 cardiovascular disease 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 82% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 67% of these records are
  • Record last updated2012 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Colorado

There are 332 cardiovascular disease physician records in Colorado.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Barbara Abrahams, MDAurora, CO 800451487621918
  2. Jose Banchs, MDAurora, CO 800451952389041
  3. Peter Buttrick, MDAurora, CO 800451629182175
  4. William Fabian, M.D.Aurora, CO 800451740221886
  5. Edward Gill, MDAurora, CO 800451518046275
  6. Clifford Greyson, MDAurora, CO 800451508824384
  7. Brack Hattler, M.D.Aurora, CO 800451376511923
  8. David Kao, MDAurora, CO 800451982620076

Common questions

What is Mark Ward Keller, MD's NPI number?

Mark Ward Keller, MD's National Provider Identifier (NPI) is 1720074578, issued on Sep 26, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark Ward Keller, MD located?

The NPPES record lists a practice address at 12605 E 16TH Ave, Aurora, CO, 80045. Phone: (720) 848-4000. Providers update this record themselves, so call before visiting.

How can I verify Mark Ward Keller, MD's license?

NPPES lists Colorado license number 31782, 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 Ward Keller, MD prescribe under Medicare Part D?

In 2024, Mark Ward Keller, MD had 2,175 Medicare Part D claims for 289 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.

What is Mark Ward Keller, MD's MIPS final score?

The 2023 MIPS final score is 97.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.