David Magier, M.D.
NPI 1285634196ActiveIndividual· Internal Medicine, Gastroenterology· Great Neck, NY
Internal Medicine, Gastroenterology (M.D.) in Great Neck, New York, trained at Icahn School of Medicine at Mount Sinai (class of 1979). Their prescriptions cost Medicare Part D more than their services did: $2,411,432 for 9,976 claims, against $573,926 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 11 companies reporting payments in 2025, $3,735 in all, mostly food and beverage.
Overview
| NPI | 1285634196 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 21, 2005 |
| Last updated in NPPES | Jul 16, 2026 |
| Certified by provider | Jul 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 142670 | NY |
| Internal Medicine | 207R00000X | 142670 | NY |
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 - Gastroenterology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,000 |
|---|---|
| Services billed | 7,842 across 52 procedure codes |
| Paid by Medicare | $573,926 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,976 · 19,836 30-day fills |
|---|---|
| Patients | 1,021 |
| Total drug cost | $2,411,432 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Icahn School of Medicine at Mount Sinai |
|---|---|
| Graduation year | 1979 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- New York UniversityNew York, NY · 6,134 clinicians
Hospital affiliations
- Long Island Jewish Medical CenterNew Hyde Park, NY
- NYU Langone HospitalsNew York, NY
Other facilities
- Americare Certified Special Services, Inc ChhaHome health agency · Brooklyn, NY
- North Shore Home Care ChhaHome health agency · Westbury, NY
- Vns of Ny Home Care ChhaHome health agency · New York, NY
Industry payments (Open Payments)
- 2025$3,735 · 99 payments from 11 companies
- 2024$3,122 · 106 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $1,318 | 22 |
| Gilead Sciences, Inc. | $515.31 | 8 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $466.56 | 31 |
| Ipsen Biopharmaceuticals, Inc | $319.22 | 5 |
| Abbvie Inc. | $267.03 | 6 |
What the 2025 payments were for
- Food and Beverage$3,735 · 99 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 34 gastroenterologists in Great Neck · All gastroenterologists in New York