Melissa A. Martinez Mateo, M.D.
NPI 1003124280ActiveIndividual· Internal Medicine, Gastroenterology· Carbondale, IL
Internal Medicine, Gastroenterology (M.D.) with Northwestern Medical Faculty Foundation and 1 other group, practicing in Carbondale, Illinois. In 2024 Medicare paid $57,884 for 293 patients, and Part D covered 190 of their prescriptions, 87% of them generic. Medtronic, Inc. was the largest of 2 companies reporting payments in 2025, $69.70 in all, mostly food and beverage. Lists Carle Foundation Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1003124280 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 21, 2010 |
| Last updated in NPPES | Dec 4, 2025 |
| Certified by provider | Dec 4, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 01072250A | IN |
| Internal Medicine | 207R00000X | 125056433 | IL |
| Internal Medicine, Gastroenterology | 207RG0100X | 036139158 | IL |
| Internal Medicine | 207R00000X | 11015804A | IN |
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 - Gastroenterology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 293 |
|---|---|
| Services billed | 621 across 46 procedure codes |
| Paid by Medicare | $57,884 |
Part D prescriptions in 2024
| Prescriptions (claims) | 190 · 346 30-day fills |
|---|---|
| Patients | 84 |
| Total drug cost | $17,224 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical groups
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
- Carle Health Care IncorporatedUrbana, IL · 1,666 clinicians
Hospital affiliations
- Carle Foundation HospitalUrbana, IL
- Palos Community HospitalPalos Heights, IL
Industry payments (Open Payments)
- 2025$69.70 · 2 payments from 2 companies
- 2024$608.19 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $47.41 | 1 |
| Orphalan Inc | $22.29 | 1 |
What the 2025 payments were for
- Food and Beverage$69.70 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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