David Hyungjun Yi, MD
NPI 1003808197ActiveIndividual· Ophthalmology· Chelmsford, MA
Ophthalmology (MD) in Chelmsford, Massachusetts, trained at Baylor College of Medicine (class of 1997). In 2024 Medicare paid $350,999 for 1,466 patients, and Part D covered 2,950 of their prescriptions, 68% of them generic. Alcon Vision LLC was the largest of 3 companies reporting payments in 2025, $197.13 in all, mostly food and beverage.
Overview
| NPI | 1003808197 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 16, 2005 |
| Last updated in NPPES | Sep 29, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 209741 | MA |
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 (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,466 |
|---|---|
| Services billed | 3,291 across 33 procedure codes |
| Paid by Medicare | $350,999 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,950 · 6,114 30-day fills |
|---|---|
| Patients | 667 |
| Total drug cost | $443,038 |
| Generic share | 68% of claims |
Education and affiliations
| Medical school | Baylor College of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Ophthalmology |
Medical group
- Massachusetts Eye Associates PCChelmsford, MA · 13 clinicians
Hospital affiliation
- Lowell General HospitalLowell, MA
Industry payments (Open Payments)
- 2025$197.13 · 6 payments from 3 companies
- 2024$182.52 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $127.46 | 4 |
| Johnson & Johnson Surgical Vision, Inc. | $38.79 | 1 |
| Abbvie Inc. | $30.88 | 1 |
What the 2025 payments were for
- Food and Beverage$197.13 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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