Aaron Benjamin, MD
NPI 1699954537ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Skokie, IL
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Skokie, Illinois, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $1,833,858 for 3,261 claims, against $61,552 paid for services in 2024. Corcept Therapeutics reported $17.09 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1699954537 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 28, 2007 |
| Last updated in NPPES | Sep 18, 2026 |
| Certified by provider | Sep 18, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 036116952 | 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 - Endocrinology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 287 |
|---|---|
| Services billed | 2,296 across 20 procedure codes |
| Paid by Medicare | $61,552 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,261 · 6,667 30-day fills |
|---|---|
| Patients | 466 |
| Total drug cost | $1,833,858 |
| Generic share | 30% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Advocate Health and Hospitals CorporationChicago, IL · 3,118 clinicians
Hospital affiliations
- Advocate Illinois Masonic Medical CenterChicago, IL
- Advocate Lutheran General HospitalPark Ridge, IL
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
Industry payments (Open Payments)
- 2025$17.09 · 1 payment from 1 company
- 2024$23.80 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Corcept Therapeutics | $17.09 | 1 |
What the 2025 payments were for
- Food and Beverage$17.09 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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