Fred Grunseid, M.D.
NPI 1023036613ActiveIndividual· Internal Medicine· Brooklyn, NY
Internal Medicine (M.D.) in Brooklyn, New York, trained at Icahn School of Medicine at Mount Sinai (class of 1984). Their prescriptions cost Medicare Part D more than their services did: $1,901,530 for 11,389 claims, against $271,644 paid for services in 2024. Novo Nordisk Inc was the largest of 15 companies reporting payments in 2025, $1,180 in all, mostly food and beverage.
Overview
| NPI | 1023036613 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 18, 2006 |
| Last updated in NPPES | Aug 17, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 166169 | NY |
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 - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 523 |
|---|---|
| Services billed | 9,512 across 40 procedure codes |
| Paid by Medicare | $271,644 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,389 · 24,233 30-day fills |
|---|---|
| Patients | 702 |
| Total drug cost | $1,901,530 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Icahn School of Medicine at Mount Sinai |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Allied Medical Associates PCBrooklyn, NY · 2 clinicians
Hospital affiliation
- Maimonides Medical CenterBrooklyn, NY
Other facilities
- Girling Health Care of New YorkHome health agency · Brooklyn, NY
- Revival Home Health CareHome health agency · Staten Island, NY
- Vns of Ny Home Care ChhaHome health agency · New York, NY
Industry payments (Open Payments)
- 2025$1,180 · 67 payments from 15 companies
- 2024$1,099 · 59 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $278.68 | 11 |
| Abbvie Inc. | $161.51 | 14 |
| Astrazeneca Pharmaceuticals LP | $137.45 | 10 |
| Lilly USA, LLC | $109.08 | 9 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $92.51 | 5 |
What the 2025 payments were for
- Food and Beverage$1,180 · 67 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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