Maria Justina Villano, MD
NPI 1518186824ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Arlington Heights, IL
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Endeavor Health Medical Group, practicing in Arlington Heights, Illinois. Their prescriptions cost Medicare Part D more than their services did: $1,779,700 for 3,916 claims, against $114,313 paid for services in 2024. Novo Nordisk Inc was the largest of 2 companies reporting payments in 2025, $128.88 in all, mostly food and beverage. Lists Advocate Good Shepherd Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1518186824 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 25, 2007 |
| Last updated in NPPES | May 11, 2021 |
| Certified by provider | May 11, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 036-125299 | IL |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | 57006090 | OH |
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 - Endocrinology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 429 |
|---|---|
| Services billed | 2,378 across 23 procedure codes |
| Paid by Medicare | $114,313 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,916 · 9,516 30-day fills |
|---|---|
| Patients | 471 |
| Total drug cost | $1,779,700 |
| Generic share | 46% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Endeavor Health Medical GroupEvanston, IL · 3,350 clinicians
Hospital affiliations
- Advocate Good Shepherd HospitalBarrington, IL
- Northwest Community Hospital 1Arlington Heights, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
Industry payments (Open Payments)
- 2025$128.88 · 5 payments from 2 companies
- 2024$432.49 · 18 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $107.16 | 4 |
| Ascensia Diabetes Care US Inc. | $21.72 | 1 |
What the 2025 payments were for
- Food and Beverage$128.88 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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