Mayer Zayan, M.D.
NPI 1619064151ActiveIndividual· Internal Medicine· Northbrook, IL
Internal Medicine (M.D.) in Northbrook, Illinois, licensed in IL, with an NPI issued in October 2006. Their prescriptions cost Medicare Part D more than their services did: $395,841 for 4,664 claims, against $19,330 paid for services in 2024.
Overview
| NPI | 1619064151 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Oct 6, 2006 |
| Last updated in NPPES | Aug 23, 2022 |
| Certified by provider | Aug 23, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036060803 | 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 - Internal Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 60 |
|---|---|
| Services billed | 156 across 2 procedure codes |
| Paid by Medicare | $19,330 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,664 · 6,146 30-day fills |
|---|---|
| Patients | 142 |
| Total drug cost | $395,841 |
| Generic share | 87% of claims |
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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All 49 internal medicine physicians in Northbrook · All internal medicine physicians in Illinois