Zachary Byington, PA-C
NPI 1093568487ActiveIndividual· Physician Assistant, Surgical· Oak Lawn, IL
Physician Assistant, Surgical (PA-C) with Cardiothoracic and Vascular Surgical Associates S C, practicing in Oak Lawn, Illinois. Mostly services rather than prescriptions: Medicare paid $1,922 for 23 patients in 2024, with only 40 Part D claims. Chiesi USA, Inc. reported $27.21 in payments in 2025, mostly food and beverage. Lists Advocate Sherman Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1093568487 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Apr 8, 2024 |
| Last updated in NPPES | Sep 24, 2025 |
| Certified by provider | Sep 24, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | 085010555 | IL |
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 - Physician Assistant (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 23 |
|---|---|
| Services billed | 24 across 4 procedure codes |
| Paid by Medicare | $1,922 |
Part D prescriptions in 2024
| Prescriptions (claims) | 40 · 42 30-day fills |
|---|---|
| Patients | 29 |
| Total drug cost | $267.84 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2024 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Cardiothoracic and Vascular Surgical Associates S CChicago, IL · 48 clinicians
Hospital affiliations
- Advocate Sherman HospitalElgin, IL
- Uchicago Medicine Adventhealth BolingbrookBolingbrook, IL
- Uchicago Medicine Adventhealth HinsdaleHinsdale, IL
- Uchicago Medicine Adventhealth la GrangeLa Grange, IL
Industry payments (Open Payments)
- 2025$27.21 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Chiesi USA, Inc. | $27.21 | 1 |
What the 2025 payments were for
- Food and Beverage$27.21 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 surgical physician assistants in Oak Lawn · All surgical physician assistants in Illinois