Sang Yoon Lee, MD
NPI 1649474792ActiveIndividual· Internal Medicine, Gastroenterology· Mount Kisco, NY
Internal Medicine, Gastroenterology (MD) in Mount Kisco, New York, trained at Tufts University School of Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $430,026 for 935 claims, against $187,949 paid for services in 2024. Abbvie Inc. was the largest of 4 companies reporting payments in 2025, $197.77 in all, mostly food and beverage.
Overview
| NPI | 1649474792 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 13, 2007 |
| Last updated in NPPES | Nov 11, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 224804 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (NV); Practitioner - Gastroenterology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 410 |
|---|---|
| Services billed | 2,790 across 75 procedure codes |
| Paid by Medicare | $187,949 |
Part D prescriptions in 2024
| Prescriptions (claims) | 935 · 2,061 30-day fills |
|---|---|
| Patients | 318 |
| Total drug cost | $430,026 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Kim Chen PLLCLas Vegas, NV · 18 clinicians
Hospital affiliation
- Saint Rose Dominican Hospitals - Siena CampusHenderson, NV
Industry payments (Open Payments)
- 2025$197.77 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $148.82 | 2 |
| Takeda Pharmaceuticals U.S.A., Inc. | $17.63 | 1 |
| Genzyme Corporation | $16.04 | 1 |
| Novo Nordisk Inc | $15.28 | 1 |
What the 2025 payments were for
- Food and Beverage$197.77 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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