Erin Megan Pettijohn, M.D.
NPI 1003101429ActiveIndividual· Internal Medicine, Hematology & Oncology· Grand Rapids, MI
Internal Medicine, Hematology & Oncology (M.D.) in Grand Rapids, Michigan, trained at Wayne State University School of Medicine (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $18,536,719 for 3,476 claims, against $1,775,394 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 39 companies reporting payments in 2025, $2,822 in all, mostly food and beverage.
Overview
| NPI | 1003101429 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 14, 2011 |
| Last updated in NPPES | Mar 13, 2020 |
| Certified by provider | Mar 13, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 4301111782 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 493 |
|---|---|
| Services billed | 112,411 across 174 procedure codes |
| Paid by Medicare | $1,775,394 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,476 · 4,065 30-day fills |
|---|---|
| Patients | 359 |
| Total drug cost | $18,536,719 |
| Generic share | 67% of claims |
Education and affiliations
| Medical school | Wayne State University School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Cancer and Hematology Centers of Western Mi, P.C.Holland, MI · 110 clinicians
Hospital affiliations
- Corewell Health Ludington HospitalLudington, MI
- Mercy Health Lakeshore CampusShelby, MI
- Mercy Health Saint Mary'sGrand Rapids, MI
- Spectrum HealthGrand Rapids, MI
- Trinity Health Muskegon HospitalMuskegon, MI
Industry payments (Open Payments)
- 2025$2,822 · 141 payments from 39 companies
- 2024$2,275 · 118 payments from 34 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $288.16 | 21 |
| Glaxosmithkline, LLC. | $232.23 | 18 |
| Merck Sharp & Dohme LLC | $208.33 | 7 |
| Abbvie Inc. | $165.12 | 8 |
| Janssen Biotech, Inc. | $163.16 | 8 |
What the 2025 payments were for
- Food and Beverage$2,822 · 141 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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