Michael F. Grimm, MD
NPI 1467521930ActiveIndividual· Internal Medicine, Cardiovascular Disease· Okemos, MI
Internal Medicine, Cardiovascular Disease (MD) in Okemos, Michigan, trained at St. Louis College of Physicians and Surgeons (class of 1981). Their prescriptions cost Medicare Part D more than their services did: $291,581 for 1,346 claims, against $66,231 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 14 companies reporting payments in 2025, $1,025 in all, mostly food and beverage.
Overview
| NPI | 1467521930 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 7, 2006 |
| Last updated in NPPES | Jun 8, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 4301052584 | MI |
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 - Cardiovascular Disease (Cardiology) (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 378 |
|---|---|
| Services billed | 969 across 23 procedure codes |
| Paid by Medicare | $66,231 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,346 · 3,333 30-day fills |
|---|---|
| Patients | 430 |
| Total drug cost | $291,581 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | St. Louis College of Physicians and Surgeons |
|---|---|
| Graduation year | 1981 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Nuclear Medicine |
Medical group
- Lansing Cardiovascular Consultants PCHolt, MI · 10 clinicians
Hospital affiliations
- Edward W Sparrow HospitalLansing, MI
- McLaren Greater LansingLansing, MI
Industry payments (Open Payments)
- 2025$1,025 · 49 payments from 14 companies
- 2024$756.81 · 35 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $225.26 | 9 |
| Novartis Pharmaceuticals Corporation | $171.31 | 12 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $148.95 | 7 |
| E.R. Squibb & Sons, L.L.C. | $90.47 | 5 |
| Alnylam Pharmaceuticals Inc. | $90.17 | 4 |
What the 2025 payments were for
- Food and Beverage$1,025 · 49 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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