Gillian F. Grafton Gzym, D.O.
NPI 1043475148ActiveIndividual· Internal Medicine, Advanced Heart Failure and Transplant Cardiology· Detroit, MI
Internal Medicine, Advanced Heart Failure and Transplant Cardiology (D.O.) with Henry Ford Health System and 1 other group, practicing in Detroit, Michigan. Their prescriptions cost Medicare Part D more than their services did: $4,363,100 for 1,754 claims, against $36,411 paid for services in 2024. Abbott Laboratories was the largest of 3 companies reporting payments in 2025, $441.68 in all, mostly food and beverage. Lists Henry Ford Allegiance Health and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1043475148 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Jul 28, 2008 |
| Last updated in NPPES | May 29, 2026 |
| Certified by provider | May 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Advanced Heart Failure and Transplant Cardiology Primary | 207RA0001X | 5101019651 | MI |
| Internal Medicine | 207R00000X | 5101019651 | MI |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 5101019651 | MI |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 5101019651 | MI |
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) (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 171 |
|---|---|
| Services billed | 516 across 26 procedure codes |
| Paid by Medicare | $36,411 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,754 · 3,246 30-day fills |
|---|---|
| Patients | 233 |
| Total drug cost | $4,363,100 |
| Generic share | 65% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Critical Care (Intensivists), Internal Medicine |
Medical groups
- Henry Ford Health SystemDetroit, MI · 2,570 clinicians
- W.A. Foote Memorial HospitalJackson, MI · 476 clinicians
Hospital affiliations
- Henry Ford Allegiance HealthJackson, MI
- Henry Ford Health HospitalDetroit, MI
- Henry Ford Health West Bloomfield HospitalW Bloomfield, MI
- Henry Ford Macomb HospitalClinton Township, MI
- Wyandotte Hospital and Medical CenterWyandotte, MI
Industry payments (Open Payments)
- 2025$441.68 · 10 payments from 3 companies
- 2024$2,162 · 29 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $388.98 | 8 |
| Procyrion, Inc. | $33.24 | 1 |
| Pfizer Inc. | $19.46 | 1 |
What the 2025 payments were for
- Food and Beverage$441.68 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Advanced Heart Failure and Transplant Cardiology providers in Detroit
- 1164816476
- 1386762565
- 1265561518
All Internal Medicine, Advanced Heart Failure and Transplant Cardiology providers in Michigan →