NPPES file of Aug 9, 2026

Greg Flaker, M.D.

Clinical Cardiac Electrophysiology Physician · Columbia, MO

Greg Flaker, M.D. is a clinical cardiac electrophysiology physician with a practice address in Columbia, Missouri, and NPI 1851342299, issued on May 12, 2006. Check the license (Missouri R8297, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; 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
1851342299
Name
Greg Flaker
Credential
M.D.
Primary taxonomy
Clinical Cardiac Electrophysiology Physician 207RC0001X
License number
R8297 MO
Self-reported in NPPES; status is on the state search
Practice location
500 N Keene St Ste 406, Columbia, MO 65201
Phone
(573) 884-3278
Enumerated
May 12, 2006
Record last updated
Oct 2, 2024
Fax
(573) 884-1351
Medicaid ID
201509908 MO
Medicare enrollment
Enrolled (PECOS I20070511000204); accepts Medicare assignment
Medical or professional school
University Of Missouri, Columbia School Of Medicine, 1976
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 500 N Keene St Ste 406

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

  1. Deepa Baswaraj, MBBSCardiovascular Disease Physician1033604053
  2. Chirag Bavishi, M.D., M.P.H.Cardiovascular Disease Physician1518224476
  3. Brian Bostick, M.D.Cardiovascular Disease Physician1790097541
  4. Mary Dohrmann, MDCardiovascular Disease Physician1912959412
  5. Robert Eden, MDMaternal & Fetal Medicine Physician1558473298
  6. Mary Fisher, D.O.Cardiovascular Disease Physician1467834341

Verify Greg Flaker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license R8297
    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 Missouri license search

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38% more Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024

2,356 Medicare Part D claims for 227 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Greg Flaker2,356
  2. Specialty average1,710

Most prescribed

  1. Atorvastatin Calcium220 claims
  2. Eliquis215 claims
  3. Metoprolol Succinate138 claims
  4. Amlodipine Besylate118 claims
  5. Lisinopril104 claims
  6. Spironolactone96 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 practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $256.68

6 payments; by number, the most common kind was food and beverage; the largest payer was Biosense Webster, Inc. The 3,167 providers of this specialty with any payment received $10,651.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Greg Flaker$257
  2. Specialty average$10,651

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. The Curators OF The University OF MissouriColumbia, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Greg Flaker among 73 clinical cardiac electrophysiology physician records in Missouri

Greg Flaker, M.D. is one of 73 clinical cardiac electrophysiology physician records with a practice address in Missouri. 96% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 51% newer
  • In a Medicare fileYes · 96% of these records are
  • In the CMS Doctors and Clinicians fileYes · 89% of these records are
  • Graduated1976 · median 2003 among the 65 with a school on file
  • Record last updated2024 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Cardiac Electrophysiology Physician providers in Missouri

There are 73 clinical cardiac electrophysiology physician records in Missouri.

The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes

  1. Dan Pierce, M.D.Columbia, MO 652011215920541
  2. John Verbsky, MDColumbia, MO 652011760693873
  3. Hemant Godara, M.D.Columbia, MO 652121417184029
  4. Rahul Jain, M.D.Columbia, MO 652121003018201
  5. Sathish Kodali, M.D.Columbia, MO 652121972536555
  6. Zhenguo Liu, M.D.Columbia, MO 652121538173166
  7. Tyler Alderson, MDJefferson City, MO 651091639521750
  8. Rafael Gaytan, MDJoplin, MO 648041376602649

Common questions

What is Greg Flaker, M.D.'s NPI number?

Greg Flaker, M.D.'s National Provider Identifier (NPI) is 1851342299, issued on May 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Greg Flaker, M.D. located?

The NPPES record lists a practice address at 500 N Keene St Ste 406, Columbia, MO, 65201. Phone: (573) 884-3278. Providers update this record themselves, so call before visiting.

How can I verify Greg Flaker, M.D.'s license?

NPPES lists Missouri license number R8297, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Greg Flaker, M.D. prescribe under Medicare Part D?

In 2024, Greg Flaker, M.D. had 2,356 Medicare Part D claims for 227 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. Part D covers Medicare prescriptions only.

What is Greg Flaker, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. 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.