Gregory Douglas Chapman, MD
NPI 1588641070ActiveIndividual· Internal Medicine, Cardiovascular Disease· Alabaster, AL
Internal Medicine, Cardiovascular Disease (MD) in Alabaster, Alabama, trained at University of Alabama School of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $1,036,145 for 5,763 claims, against $162,335 paid for services in 2024. Novo Nordisk Inc was the largest of 5 companies reporting payments in 2025, $257.35 in all, mostly food and beverage.
Overview
| NPI | 1588641070 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 27, 2005 |
| Last updated in NPPES | Jun 29, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 16442 | AL |
| Internal Medicine, Interventional Cardiology | 207RI0011X | 16442 | AL |
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 - Cardiovascular Disease (Cardiology) (AL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,254 |
|---|---|
| Services billed | 3,327 across 31 procedure codes |
| Paid by Medicare | $162,335 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,763 · 15,055 30-day fills |
|---|---|
| Patients | 870 |
| Total drug cost | $1,036,145 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | University of Alabama School of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Interventional Cardiology |
Medical group
- University of Alabama Health Services Foundation, PCBirmingham, AL · 2,814 clinicians
Hospital affiliation
- University of Alabama HospitalBirmingham, AL
Industry payments (Open Payments)
- 2025$257.35 · 11 payments from 5 companies
- 2024$120.14 · 6 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $176.43 | 7 |
| Inspire Medical Systems, Inc. | $28.16 | 1 |
| Novartis Pharmaceuticals Corporation | $19.15 | 1 |
| Tactile Systems Technology Inc | $17.88 | 1 |
| Amgen Inc. | $15.73 | 1 |
What the 2025 payments were for
- Food and Beverage$257.35 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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