Eric Geiser, MD
NPI 1316007503ActiveIndividual· Internal Medicine, Pulmonary Disease· Grand Rapids, MI
Internal Medicine, Pulmonary Disease (MD) with Advantage Health/Saint Mary's Medical Group, practicing in Grand Rapids, Michigan. Their prescriptions cost Medicare Part D more than their services did: $439,449 for 1,072 claims, against $33,890 paid for services in 2024. United Therapeutics Corporation was the largest of 7 companies reporting payments in 2025, $459.67 in all, mostly food and beverage. Lists Mercy Health Saint Mary's and 1 other hospital as hospital affiliations.
Overview
| NPI | 1316007503 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 11, 2006 |
| Last updated in NPPES | Dec 14, 2023 |
| Certified by provider | Dec 14, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 9999999 | MI |
| Emergency Medicine | 207P00000X | 00027008 | AL |
| Internal Medicine | 207R00000X | A96549 | CA |
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 - Critical Care (Intensivists) (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 237 |
|---|---|
| Services billed | 556 across 28 procedure codes |
| Paid by Medicare | $33,890 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,072 · 1,494 30-day fills |
|---|---|
| Patients | 243 |
| Total drug cost | $439,449 |
| Generic share | 38% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Critical Care (Intensivists) |
| Secondary specialties | Pulmonary Disease |
| Telehealth | Offers telehealth |
Medical group
- Advantage Health/Saint Mary's Medical GroupCaledonia, MI · 505 clinicians
Hospital affiliations
- Mercy Health Saint Mary'sGrand Rapids, MI
- Spectrum HealthGrand Rapids, MI
Industry payments (Open Payments)
- 2025$459.67 · 12 payments from 7 companies
- 2024$91.76 · 6 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| United Therapeutics Corporation | $159.21 | 3 |
| Intuitive Surgical, Inc. | $154.81 | 2 |
| Takeda Pharmaceuticals U.S.A., Inc. | $46.07 | 2 |
| Grifols USA, LLC | $32.82 | 1 |
| Insmed, Inc. | $32.70 | 2 |
What the 2025 payments were for
- Food and Beverage$442.29 · 11 payments
- Education$17.38 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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