Moonyoung S. Chung, M.D.
NPI 1689685463ActiveIndividual· Ophthalmology· Saginaw, MI
Ophthalmology (M.D.) in Saginaw, Michigan, trained at University of Michigan Medical School (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $680,819 for 3,019 claims, against $69,410 paid for services in 2024. Bausch & Lomb Americas Inc. was the largest of 2 companies reporting payments in 2025, $211.60 in all, mostly food and beverage.
Overview
| NPI | 1689685463 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 10, 2006 |
| Last updated in NPPES | Sep 19, 2023 |
| Certified by provider | Sep 19, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 4301067674 | MI |
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 - Ophthalmology (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 646 |
|---|---|
| Services billed | 1,194 across 28 procedure codes |
| Paid by Medicare | $69,410 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,019 · 4,877 30-day fills |
|---|---|
| Patients | 896 |
| Total drug cost | $680,819 |
| Generic share | 58% of claims |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Ophthalmology |
Medical group
- Great Lakes Eye InstituteSaginaw, MI · 13 clinicians
Hospital affiliation
- Mymichigan Medical Center MidlandMidland, MI
Industry payments (Open Payments)
- 2025$211.60 · 18 payments from 2 companies
- 2024$123.08 · 7 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bausch & Lomb Americas Inc. | $197.12 | 17 |
| Amgen Inc. | $14.48 | 1 |
What the 2025 payments were for
- Food and Beverage$211.60 · 18 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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