Grazia Aleppo, MD
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Northwestern Medical Faculty Foundation, practicing in Chicago, Illinois. Their prescriptions cost Medicare Part D more than their services did: $1,542,690 for 2,361 claims, against $56,281 paid for services in 2024. Dexcom, Inc. was the largest of 5 companies reporting payments in 2025, $28,903 in all, mostly compensation for serving as faculty or as a speaker for a me. Lists Northwestern Medicine Central Dupage Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1689603268 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 3, 2006 |
| Last updated in NPPES | Apr 22, 2026 |
| Certified by provider | Apr 22, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 036099550 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 248 |
|---|---|
| Services billed | 1,193 across 27 procedure codes |
| Paid by Medicare | $56,281 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,361 · 5,606 30-day fills |
|---|---|
| Patients | 285 |
| Total drug cost | $1,542,690 |
| Generic share | 31% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
Hospital affiliations
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Memorial HospitalChicago, IL
- Palos Community HospitalPalos Heights, IL
Industry payments (Open Payments)
- 2025$28,903 · 28 payments from 5 companies
- 2024$20,912 · 27 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $15,056 | 9 |
| Insulet Corporation | $10,104 | 13 |
| Eli Lilly and Company | $1,925 | 2 |
| Tandem Diabetes Care, Inc. | $1,500 | 1 |
| Medtronic, Inc. | $319.10 | 3 |
What the 2025 payments were for
- Compensation for serving as faculty or as a speaker for a medical education program$14,357 · 5 payments
- Consulting Fee$6,753 · 5 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$5,304 · 1 payment
- Travel and Lodging$2,000 · 12 payments
- Food and Beverage$490.08 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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