Marc David Grobman, D.O.
NPI 1063484442ActiveIndividual· Family Medicine· Wilmington, DE
Family Medicine (D.O.) in Wilmington, Delaware, trained at Des Moines University of Osteopathic Medicine and Health Sciences (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $971,646 for 6,617 claims, against $156,124 paid for services in 2024. Vanda Pharmaceuticals Inc. was the largest of 23 companies reporting payments in 2025, $1,982 in all, mostly food and beverage.
Overview
| NPI | 1063484442 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Feb 1, 2006 |
| Last updated in NPPES | Dec 19, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | C2-0003657 | DE |
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 - Internal Medicine (DE) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 314 |
|---|---|
| Services billed | 2,407 across 37 procedure codes |
| Paid by Medicare | $156,124 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,617 · 14,673 30-day fills |
|---|---|
| Patients | 430 |
| Total drug cost | $971,646 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Des Moines University of Osteopathic Medicine and Health Sciences |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliation
- Christiana HospitalNewark, DE
Other facilities
- Bayada Home Health Care, IncHome health agency · Wilmington, DE
- Christianacare HomehealthHome health agency · Wilmington, DE
Industry payments (Open Payments)
- 2025$1,982 · 106 payments from 23 companies
- 2024$1,838 · 111 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vanda Pharmaceuticals Inc. | $242.64 | 7 |
| Glaxosmithkline, LLC. | $218.33 | 9 |
| Lilly USA, LLC | $208.36 | 8 |
| Pfizer Inc. | $150.69 | 11 |
| Astrazeneca Pharmaceuticals LP | $143.65 | 11 |
What the 2025 payments were for
- Food and Beverage$1,951 · 104 payments
- Education$30.72 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 241 family medicine physicians in Wilmington · All family medicine physicians in Delaware