Anthony W. Delorenzo, D.O.
NPI 1851477236ActiveIndividual· Internal Medicine· Willowbrook, IL
Internal Medicine (D.O.) in Willowbrook, Illinois, licensed in IL, with an NPI issued in October 2006. Their prescriptions cost Medicare Part D more than their services did: $914,056 for 3,998 claims, against $123,728 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 14 companies reporting payments in 2025, $705.48 in all, mostly food and beverage. Lists Advocate Christ Hospital & Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1851477236 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Oct 28, 2006 |
| Last updated in NPPES | Mar 7, 2023 |
| Certified by provider | Aug 24, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036089038 | 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) | Enrolled Practitioner - Internal Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 190 |
|---|---|
| Services billed | 3,441 across 61 procedure codes |
| Paid by Medicare | $123,728 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,998 · 8,637 30-day fills |
|---|---|
| Patients | 213 |
| Total drug cost | $914,056 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 1992 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- Advocate Christ Hospital & Medical CenterOak Lawn, IL
- Uchicago Medicine Adventhealth BolingbrookBolingbrook, IL
- Uchicago Medicine Adventhealth HinsdaleHinsdale, IL
- Uchicago Medicine Adventhealth la GrangeLa Grange, IL
Other facilities
- Uchicago Medicine Adventhealth Home CareHome health agency · La Grange, IL
- Suncrest Hospice Illinois LLCHospice · Northbrook, IL
- Plymouth PlaceNursing home · La Grange Park, IL
Industry payments (Open Payments)
- 2025$705.48 · 34 payments from 14 companies
- 2024$861.16 · 38 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $101.79 | 5 |
| Amgen Inc. | $89.62 | 5 |
| Recordati_rare_diseases_inc. | $76.57 | 3 |
| Corcept Therapeutics | $76.51 | 3 |
| Abbvie Inc. | $68.93 | 3 |
What the 2025 payments were for
- Food and Beverage$705.48 · 34 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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