Michael J. Mangan, M. D.
NPI 1245280106ActiveIndividual· Internal Medicine, Gastroenterology· Tallahassee, FL
Internal Medicine, Gastroenterology (M. D.) in Tallahassee, Florida, trained at Johns Hopkins University School of Medicine (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $288,572 for 1,446 claims, against $102,772 paid for services in 2024. Abbvie Inc. was the largest of 8 companies reporting payments in 2025, $470.72 in all, mostly food and beverage.
Overview
| NPI | 1245280106 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M. D. |
| Sole proprietor | No |
| NPI issued | May 11, 2006 |
| Last updated in NPPES | Jul 10, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | ME 62304 | FL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 377 |
|---|---|
| Services billed | 2,008 across 45 procedure codes |
| Paid by Medicare | $102,772 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,446 · 2,623 30-day fills |
|---|---|
| Patients | 484 |
| Total drug cost | $288,572 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Johns Hopkins University School of Medicine |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Gastroenterology |
Medical group
- Stockwell Reisman Paulk and Taylor PATallahassee, FL · 16 clinicians
Hospital affiliations
- Doctors Memorial Hospital IncPerry, FL
- Tallahassee Memorial HealthcareTallahassee, FL
Industry payments (Open Payments)
- 2025$470.72 · 27 payments from 8 companies
- 2024$531.69 · 31 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $257.02 | 14 |
| Pfizer Inc. | $96.09 | 5 |
| Ardelyx, Inc. | $31.21 | 2 |
| Genzyme Corporation | $22.98 | 1 |
| Phathom Pharmaceuticals, Inc. | $19.00 | 2 |
What the 2025 payments were for
- Food and Beverage$470.72 · 27 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 20 gastroenterologists in Tallahassee · All gastroenterologists in Florida