John Mirro, MD
NPI 1689678955ActiveIndividual· Internal Medicine, Gastroenterology· Merrillville, IN
Internal Medicine, Gastroenterology (MD) in Merrillville, Indiana, trained at Indiana University School of Medicine (class of 1972). Mostly services rather than prescriptions: Medicare paid $11,767 for 69 patients in 2024, with only 15 Part D claims.
Overview
| NPI | 1689678955 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 2, 2005 |
| Last updated in NPPES | Mar 15, 2023 |
| Certified by provider | Mar 15, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 01024382A | IN |
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 - Gastroenterology (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 69 |
|---|---|
| Services billed | 73 across 9 procedure codes |
| Paid by Medicare | $11,767 |
Part D prescriptions in 2024
| Prescriptions (claims) | 15 · 22 30-day fills |
|---|---|
| Total drug cost | $362.42 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 1972 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- The Methodist Hospitals IncMerrillville, IN · 129 clinicians
Hospital affiliation
- Methodist Hospitals IncGary, IN
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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