Timothy W. Oconnor, MD
NPI 1881687036ActiveIndividual· Internal Medicine, Cardiovascular Disease· Chicago, IL
Internal Medicine, Cardiovascular Disease (MD) in Chicago, Illinois, licensed in IL, with an NPI issued in August 2005. Their prescriptions cost Medicare Part D more than their services did: $553,871 for 3,659 claims, against $81,677 paid for services in 2024. Autolus Inc reported $151.78 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1881687036 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 23, 2005 |
| Last updated in NPPES | May 25, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 036065174 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 551 |
|---|---|
| Services billed | 1,565 across 36 procedure codes |
| Paid by Medicare | $81,677 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,659 · 9,768 30-day fills |
|---|---|
| Patients | 389 |
| Total drug cost | $553,871 |
| Generic share | 86% of claims |
Industry payments (Open Payments)
- 2025$151.78 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Autolus Inc | $151.78 | 1 |
What the 2025 payments were for
- Food and Beverage$151.78 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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