Carmen Gnatenco, M.D.
NPI 1043363708ActiveIndividual· Internal Medicine· Palos Heights, IL
Internal Medicine (M.D.) in Palos Heights, Illinois, licensed in IL, with an NPI issued in January 2007. 298 Medicare patients in 2024, $170,520 paid; nearly all of their 2,843 Part D prescriptions were generic (91%). Lists Advocate Christ Hospital & Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1043363708 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 18, 2007 |
| Last updated in NPPES | Sep 25, 2026 |
| Certified by provider | Sep 25, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036-115290 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 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 | 298 |
|---|---|
| Services billed | 1,702 across 16 procedure codes |
| Paid by Medicare | $170,520 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,843 · 5,589 30-day fills |
|---|---|
| Patients | 283 |
| Total drug cost | $155,040 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | General Practice |
Hospital affiliations
- Advocate Christ Hospital & Medical CenterOak Lawn, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Palos Community HospitalPalos Heights, IL
Other facilities
- Palos Community Hospital Home Health CareHome health agency · Lemont, IL
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 52 internal medicine physicians in Palos Heights · All internal medicine physicians in Illinois