Michael Casey Flanagan, M.D.
NPI 1275516320ActiveIndividual· Internal Medicine, Advanced Heart Failure and Transplant Cardiology· Falls Church, VA
Internal Medicine, Advanced Heart Failure and Transplant Cardiology (M.D.) in Falls Church, Virginia, trained at Temple University School of Medicine (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $2,371,006 for 1,241 claims, against $47,674 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 3 companies reporting payments in 2025, $28,387 in all, mostly speaking and faculty fees.
Overview
| NPI | 1275516320 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 22, 2005 |
| Last updated in NPPES | Oct 25, 2021 |
| Certified by provider | Oct 25, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Advanced Heart Failure and Transplant Cardiology Primary | 207RA0001X | 0101238627 | VA |
| Internal Medicine | 207R00000X | 0101238627 | VA |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 0101238627 | VA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Advanced Heart Failure and Transplant Cardiology (DC); Practitioner - Cardiovascular Disease (Cardiology) (MD); Practitioner - Advanced Heart Failure and Transplant Cardiology (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 187 |
|---|---|
| Services billed | 437 across 14 procedure codes |
| Paid by Medicare | $47,674 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,241 · 3,011 30-day fills |
|---|---|
| Patients | 145 |
| Total drug cost | $2,371,006 |
| Generic share | 68% of claims |
Education and affiliations
| Medical school | Temple University School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Advanced Heart Failure And Transplant Cardiology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Inova Health Care ServicesAlexandria, VA · 1,817 clinicians
- Mary Washington Hospital IncFredericksburg, VA · 53 clinicians
Hospital affiliations
- Inova Alexandria HospitalAlexandria, VA
- Inova Fair Oaks HospitalFairfax, VA
- Inova Fairfax HospitalFalls Church, VA
- Inova Loudoun HospitalLeesburg, VA
- Mary Washington HospitalFredericksburg, VA
Industry payments (Open Payments)
- 2025$28,387 · 25 payments from 3 companies
- 2024$139.15 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $28,307 | 22 |
| Abiomed | $53.85 | 2 |
| Recor Medical Inc | $25.76 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$24,360 · 4 payments
- Travel and Lodging$3,161 · 8 payments
- Food and Beverage$865.86 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Advanced Heart Failure and Transplant Cardiology providers in Falls Church
- 1740068402
- 1659765089
- 1447419924
- 1134156151
- 1407078694
- 1205256013
- 1336313717
- 1275633679
All Internal Medicine, Advanced Heart Failure and Transplant Cardiology providers in Virginia →