Andrew J. Hsu, M.D.
NPI 1003270471ActiveIndividual· Internal Medicine, Gastroenterology· Portland, ME
Internal Medicine, Gastroenterology (M.D.) in Portland, Maine, trained at New York University School of Medicine (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $168,356 for 478 claims, against $36,990 paid for services in 2024. Ovesco Endoscopy USA, Inc. was the largest of 2 companies reporting payments in 2025, $751.03 in all, mostly travel and lodging.
Overview
| NPI | 1003270471 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 11, 2016 |
| Last updated in NPPES | Aug 23, 2023 |
| Certified by provider | Aug 23, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD27103 | ME |
| Internal Medicine, Gastroenterology | 207RG0100X | 22622 | 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 (ME) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 182 |
|---|---|
| Services billed | 372 across 45 procedure codes |
| Paid by Medicare | $36,990 |
Part D prescriptions in 2024
| Prescriptions (claims) | 478 · 844 30-day fills |
|---|---|
| Patients | 169 |
| Total drug cost | $168,356 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Gastroenterology |
Medical group
- Mercy HospitalPortland, ME · 301 clinicians
Hospital affiliations
- Mainehealth Maine Medical CenterPortland, ME
- Northern Light Mercy HospitalPortland, ME
Industry payments (Open Payments)
- 2025$751.03 · 3 payments from 2 companies
- 2024$35.46 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ovesco Endoscopy USA, Inc. | $581.31 | 1 |
| Boston Scientific Corporation | $169.72 | 2 |
What the 2025 payments were for
- Travel and Lodging$581.31 · 1 payment
- Food and Beverage$169.72 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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