Greg Flaker, M.D.
NPI 1851342299ActiveIndividual· Internal Medicine, Clinical Cardiac Electrophysiology· Columbia, MO
Internal Medicine, Clinical Cardiac Electrophysiology (M.D.) in Columbia, Missouri, trained at University of Missouri, Columbia School of Medicine (class of 1976). Their prescriptions cost Medicare Part D more than their services did: $622,906 for 2,356 claims, against $43,207 paid for services in 2024. Medtronic, Inc. was the largest of 4 companies reporting payments in 2025, $529.67 in all, mostly food and beverage.
Overview
| NPI | 1851342299 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 12, 2006 |
| Last updated in NPPES | Oct 2, 2024 |
| Certified by provider | Oct 2, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Clinical Cardiac Electrophysiology Primary | 207RC0001X | R8297 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiac Electrophysiology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,259 |
|---|---|
| Services billed | 1,892 across 21 procedure codes |
| Paid by Medicare | $43,207 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,356 · 5,645 30-day fills |
|---|---|
| Patients | 227 |
| Total drug cost | $622,906 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | University of Missouri, Columbia School of Medicine |
|---|---|
| Graduation year | 1976 |
| Medicare specialty | Cardiac Electrophysiology |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
Medical group
- The Curators of the University of MissouriColumbia, MO · 1,131 clinicians
Hospital affiliations
- Boone Hospital CenterColumbia, MO
- Moberly Regional Medical CenterMoberly, MO
- Northeast Regional Medical CenterKirksville, MO
- Phelps County Regional Medical CenterRolla, MO
- University of Missouri Health CareColumbia, MO
Industry payments (Open Payments)
- 2025$529.67 · 9 payments from 4 companies
- 2024$256.68 · 6 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $270.16 | 4 |
| Atricure, Inc. | $136.92 | 2 |
| Biosense Webster, Inc. | $85.33 | 1 |
| Siemens Medical Solutions USA, Inc. | $37.26 | 2 |
What the 2025 payments were for
- Food and Beverage$529.67 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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