Aristotle J. Damianos, M.D.
NPI 1811994171ActiveIndividual· Internal Medicine, Gastroenterology· Somersworth, NH
Internal Medicine, Gastroenterology (M.D.) in Somersworth, New Hampshire, trained at Geisel School of Medicine at Dartmouth (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $1,029,083 for 950 claims, against $281,662 paid for services in 2024. Phathom Pharmaceuticals, Inc. was the largest of 8 companies reporting payments in 2025, $422.02 in all, mostly food and beverage.
Overview
| NPI | 1811994171 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 1, 2005 |
| Last updated in NPPES | Oct 2, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 8615 | NH |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 1,066 |
|---|---|
| Services billed | 7,484 across 62 procedure codes |
| Paid by Medicare | $281,662 |
Part D prescriptions in 2024
| Prescriptions (claims) | 950 · 1,952 30-day fills |
|---|---|
| Patients | 416 |
| Total drug cost | $1,029,083 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | Geisel School of Medicine at Dartmouth |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Atlantic Digestive Specialists PLLCSomersworth, NH · 17 clinicians
Hospital affiliations
- Exeter Hospital IncExeter, NH
- Frisbie Memorial HospitalRochester, NH
- Portsmouth Regional HospitalPortsmouth, NH
- Wentworth-Douglass HospitalDover, NH
- York HospitalYork, ME
Industry payments (Open Payments)
- 2025$422.02 · 16 payments from 8 companies
- 2024$807.69 · 34 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $118.11 | 4 |
| Abbvie Inc. | $91.96 | 4 |
| Genzyme Corporation | $61.96 | 1 |
| Gilead Sciences, Inc. | $42.87 | 2 |
| Pfizer Inc. | $39.43 | 2 |
What the 2025 payments were for
- Food and Beverage$422.02 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Gastroenterology providers in New Hampshire →