Gregg Cognac, P.A.-C
NPI 1467409508ActiveIndividual· Physician Assistant· McHenry, IL
Physician Assistant (P.A.-C) with Northwestern Medical Faculty Foundation, practicing in McHenry, Illinois. 259 Medicare patients in 2024, $25,360 paid; nearly all of their 113 Part D prescriptions were generic (93%). Lists Northwestern Medicine McHenry as a hospital affiliation.
Overview
| NPI | 1467409508 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A.-C |
| Sole proprietor | No |
| NPI issued | May 27, 2006 |
| Last updated in NPPES | May 5, 2021 |
| Certified by provider | May 5, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 085001346 | IL |
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 - Physician Assistant (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 259 |
|---|---|
| Services billed | 291 across 26 procedure codes |
| Paid by Medicare | $25,360 |
Part D prescriptions in 2024
| Prescriptions (claims) | 113 · 113 30-day fills |
|---|---|
| Patients | 90 |
| Total drug cost | $2,333 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
Hospital affiliation
- Northwestern Medicine McHenryMcHenry, IL
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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