Michael Y. Choi, MD
NPI 1922083344ActiveIndividual· Internal Medicine, Gastroenterology· Worcester, MA
Internal Medicine, Gastroenterology (MD) with Umass Memorial Medical Group Inc and 1 other group, practicing in Worcester, Massachusetts. Medicare paid $6,071 for services to 32 patients in 2024. Penumbra, Inc. was the largest of 2 companies reporting payments in 2025, $173.03 in all, mostly food and beverage. Lists Exeter Hospital Inc and 1 other hospital as hospital affiliations.
Overview
| NPI | 1922083344 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 8, 2005 |
| Last updated in NPPES | Jun 24, 2026 |
| Certified by provider | Jun 24, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 217235 | MA |
| Internal Medicine, Gastroenterology | 207RG0100X | MD18573 | ME |
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 (MA); Practitioner - Gastroenterology (ME); Practitioner - Gastroenterology (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 32 |
|---|---|
| Services billed | 41 across 9 procedure codes |
| Paid by Medicare | $6,071 |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical groups
- Umass Memorial Medical Group IncWorcester, MA · 2,516 clinicians
- Core Physicians LLCExeter, NH · 289 clinicians
Hospital affiliations
- Exeter Hospital IncExeter, NH
- Mainehealth Mid Coast HospitalBrunswick, ME
Industry payments (Open Payments)
- 2025$173.03 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Penumbra, Inc. | $148.66 | 1 |
| Solventum Corporation | $24.37 | 1 |
What the 2025 payments were for
- Food and Beverage$173.03 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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