Youngsook Yoon, M.D.
NPI 1023004272ActiveIndividual· Internal Medicine, Pulmonary Disease· Toledo, OH
Internal Medicine, Pulmonary Disease (M.D.) with University of Toledo Physicians LLC, practicing in Toledo, Ohio. In 2024 Medicare paid $71,316 for 258 patients, and Part D covered 59 of their prescriptions, 34% of them generic. Baxter Healthcare was the largest of 10 companies reporting payments in 2025, $282.92 in all, mostly food and beverage. Lists Mercy St Vincent Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1023004272 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 23, 2005 |
| Last updated in NPPES | Feb 5, 2026 |
| Certified by provider | Feb 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 35078566 | OH |
| Internal Medicine | 207R00000X | 35.078566 | OH |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 35.078566 | OH |
| Internal Medicine, Sleep Medicine | 207RS0012X | 35.078566 | OH |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Pulmonary Disease (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 258 |
|---|---|
| Services billed | 777 across 34 procedure codes |
| Paid by Medicare | $71,316 |
Part D prescriptions in 2024
| Prescriptions (claims) | 59 · 75 30-day fills |
|---|---|
| Patients | 20 |
| Total drug cost | $12,925 |
| Generic share | 34% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Pulmonary Disease |
Medical group
- University of Toledo Physicians LLCToledo, OH · 403 clinicians
Hospital affiliations
- Mercy St Vincent Medical CenterToledo, OH
- Promedica Toledo HospitalToledo, OH
- University of Toledo Medical CenterToledo, OH
Industry payments (Open Payments)
- 2025$282.92 · 12 payments from 10 companies
- 2024$416.22 · 10 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Baxter Healthcare | $54.51 | 1 |
| United Therapeutics Corporation | $44.68 | 2 |
| Insmed, Inc. | $36.04 | 2 |
| Astrazeneca Pharmaceuticals LP | $28.18 | 1 |
| Genzyme Corporation | $24.65 | 1 |
What the 2025 payments were for
- Food and Beverage$282.92 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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