Mitchell R. Weinstein, M.D.
NPI 1447270475ActiveIndividual· Internal Medicine, Infectious Disease· Chicago, IL
Internal Medicine, Infectious Disease (M.D.) with Lakeshore Infectious Disease Associates Ltd., practicing in Chicago, Illinois. Their prescriptions cost Medicare Part D more than their services did: $1,188,646 for 534 claims, against $88,564 paid for services in 2024. Gilead Sciences, Inc. was the largest of 11 companies reporting payments in 2025, $1,637 in all, mostly food and beverage. Lists Presence Saint Joseph Hospital - Chicago as a hospital affiliation.
Overview
| NPI | 1447270475 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 20, 2006 |
| Last updated in NPPES | Feb 18, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 036124563 | 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 - Infectious Disease (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 130 |
|---|---|
| Services billed | 1,163 across 13 procedure codes |
| Paid by Medicare | $88,564 |
Part D prescriptions in 2024
| Prescriptions (claims) | 534 · 748 30-day fills |
|---|---|
| Patients | 47 |
| Total drug cost | $1,188,646 |
| Generic share | 41% of claims |
Education and affiliations
| Graduation year | 1992 |
|---|---|
| Medicare specialty | Infectious Disease |
Medical group
- Lakeshore Infectious Disease Associates Ltd.Chicago, IL · 4 clinicians
Hospital affiliation
- Presence Saint Joseph Hospital - ChicagoChicago, IL
Industry payments (Open Payments)
- 2025$1,637 · 68 payments from 11 companies
- 2024$1,242 · 60 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $437.59 | 17 |
| Viiv Healthcare Company | $280.41 | 15 |
| Merck Sharp & Dohme LLC | $249.44 | 10 |
| Abbvie Inc. | $145.74 | 5 |
| Insmed, Inc. | $112.35 | 5 |
What the 2025 payments were for
- Food and Beverage$1,589 · 65 payments
- Education$47.40 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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