Zakaria Sibai, MD
NPI 1346763331ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Hinsdale, IL
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Adventist Health Partners, Inc., practicing in Hinsdale, Illinois. Their prescriptions cost Medicare Part D more than their services did: $283,668 for 781 claims, against $24,381 paid for services in 2024. Medtronic, Inc. was the largest of 6 companies reporting payments in 2025, $746.40 in all, mostly food and beverage. Lists Uchicago Medicine Adventhealth Bolingbrook and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1346763331 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 21, 2017 |
| Last updated in NPPES | Sep 2, 2026 |
| Certified by provider | Sep 2, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 036.173453 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (IL); Practitioner - Endocrinology (KY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 136 |
|---|---|
| Services billed | 462 across 12 procedure codes |
| Paid by Medicare | $24,381 |
Part D prescriptions in 2024
| Prescriptions (claims) | 781 · 1,685 30-day fills |
|---|---|
| Patients | 106 |
| Total drug cost | $283,668 |
| Generic share | 35% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Endocrinology |
Medical group
- Adventist Health Partners, Inc.Lombard, IL · 255 clinicians
Hospital affiliations
- Uchicago Medicine Adventhealth BolingbrookBolingbrook, IL
- Uchicago Medicine Adventhealth GlenoaksGlendale Heights, IL
- Uchicago Medicine Adventhealth HinsdaleHinsdale, IL
- Uchicago Medicine Adventhealth la GrangeLa Grange, IL
Industry payments (Open Payments)
- 2025$746.40 · 13 payments from 6 companies
- 2024$1,164 · 11 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $365.43 | 3 |
| Abbott Laboratories | $136.93 | 6 |
| Sanofi-Aventis U.S. LLC | $125.92 | 1 |
| Kyowa Kirin, Inc. | $75.60 | 1 |
| Ascendis Pharma Endocrinology Inc | $24.33 | 1 |
What the 2025 payments were for
- Food and Beverage$746.40 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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