Ann Marie Mauer, M.D.
NPI 1891705463ActiveIndividual· Specialist· Chicago, IL
Specialist (M.D.) in Chicago, Illinois, licensed in IL, with an NPI issued in August 2006. Their prescriptions cost Medicare Part D more than their services did: $489,664 for 814 claims, against $35,833 paid for services in 2024. Ipsen Biopharmaceuticals, Inc reported $79.00 in payments in 2025, mostly education.
Overview
| NPI | 1891705463 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 8, 2006 |
| Last updated in NPPES | Dec 20, 2021 |
| Certified by provider | Dec 17, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | 036-090420 | 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 - Hematology/Oncology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 184 |
|---|---|
| Services billed | 453 across 16 procedure codes |
| Paid by Medicare | $35,833 |
Part D prescriptions in 2024
| Prescriptions (claims) | 814 · 1,872 30-day fills |
|---|---|
| Patients | 220 |
| Total drug cost | $489,664 |
| Generic share | 95% of claims |
Industry payments (Open Payments)
- 2025$79.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ipsen Biopharmaceuticals, Inc | $79.00 | 1 |
What the 2025 payments were for
- Education$79.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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