Corey Siegel, M.D.
NPI 1699798322ActiveIndividual· Internal Medicine, Gastroenterology· Lebanon, NH
Internal Medicine, Gastroenterology (M.D.) in Lebanon, New Hampshire, trained at Tufts University School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $3,990,818 for 555 claims, against $23,321 paid for services in 2024. Celltrion USA Inc. was the largest of 8 companies reporting payments in 2025, $44,549 in all, mostly consulting fees.
Overview
| NPI | 1699798322 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 25, 2006 |
| Last updated in NPPES | Sep 9, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 11395 | NH |
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 (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 170 |
|---|---|
| Services billed | 345 across 29 procedure codes |
| Paid by Medicare | $23,321 |
Part D prescriptions in 2024
| Prescriptions (claims) | 555 · 968 30-day fills |
|---|---|
| Patients | 108 |
| Total drug cost | $3,990,818 |
| Generic share | 56% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical groups
- Dartmouth-Hitchcock ClinicLebanon, NH · 1,472 clinicians
- Mary Hitchcock Memorial HospitalManchester, NH · 1,280 clinicians
Hospital affiliations
- Cheshire Medical CenterKeene, NH
- Mary Hitchcock Memorial HospitalLebanon, NH
- New London HospitalNew London, NH
- Rutland Regional Medical CenterRutland, VT
Industry payments (Open Payments)
- 2025$44,549 · 29 payments from 8 companies
- 2024$126,721 · 52 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Celltrion USA Inc. | $15,513 | 9 |
| Napo Pharmaceuticals Inc | $9,000 | 3 |
| Abbvie Inc. | $8,991 | 7 |
| Janssen Biotech, Inc. | $5,091 | 5 |
| Takeda Pharmaceuticals U.S.A., Inc. | $3,164 | 1 |
What the 2025 payments were for
- Consulting Fee$28,642 · 12 payments
- Honoraria$15,504 · 3 payments
- Food and Beverage$402.97 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in Lebanon
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All 27 gastroenterologists in Lebanon · All gastroenterologists in New Hampshire