William Jhonghoon Yoon, M.D.
NPI 1720368657ActiveIndividual· Surgery, Vascular Surgery· Skokie, IL
Surgery, Vascular Surgery (M.D.) in Skokie, Illinois, trained at Virginia Commonwealth University, School of Medicine (class of 2011). 488 Medicare patients in 2024, $70,557 paid; nearly all of their 61 Part D prescriptions were generic (98%). Bolton Medical Inc was the largest of 10 companies reporting payments in 2025, $17,001 in all, mostly travel and lodging.
Overview
| NPI | 1720368657 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 23, 2011 |
| Last updated in NPPES | Apr 27, 2021 |
| Certified by provider | Apr 4, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery, Vascular Surgery Primary | 2086S0129X | 036139697 | IL |
| Surgery | 208600000X | A157256 | CA |
| Surgery, Vascular Surgery | 2086S0129X | A157256 | CA |
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 - Vascular Surgery (CA); Practitioner - Vascular Surgery (DC); Practitioner - Vascular Surgery (IL); Practitioner - Vascular Surgery (MD); Practitioner - Vascular Surgery (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 488 |
|---|---|
| Services billed | 753 across 84 procedure codes |
| Paid by Medicare | $70,557 |
Part D prescriptions in 2024
| Prescriptions (claims) | 61 · 113 30-day fills |
|---|---|
| Patients | 19 |
| Total drug cost | $774.28 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | Virginia Commonwealth University, School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Vascular Surgery |
| Telehealth | Offers telehealth |
Medical groups
- Medstar Medical Group II LLCWashington, DC · 3,767 clinicians
- University Hospitals Medical Group IncCleveland, OH · 2,294 clinicians
Hospital affiliations
- Medstar Washington Hospital CenterWashington, DC
- Parma Community General HospitalParma, OH
- Uh Cleveland Medical CenterCleveland, OH
- University Hospitals Ahuja Medical CenterBeachwood, OH
- University Hospitals Samaritan Medical CenterAshland, OH
Industry payments (Open Payments)
- 2025$17,001 · 42 payments from 10 companies
- 2024$4,509 · 39 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bolton Medical Inc | $10,765 | 5 |
| Wilson Cook Medical Incorporated | $3,100 | 1 |
| Medtronic, Inc. | $1,049 | 5 |
| Cook Medical LLC | $1,048 | 12 |
| Abbott Laboratories | $200.67 | 5 |
What the 2025 payments were for
- Travel and Lodging$11,819 · 4 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$3,100 · 1 payment
- Food and Beverage$2,081 · 37 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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