# John G Mathis, MD

Source: https://ourhealthnetwork.com/doctor/john-mathis-md-1427051341
NPI: 1427051341
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

John G Mathis, MD is a internal medicine based in South Bend, IN practicing at Michiana Gastroenterology, Inc with NPI 1427051341.

## Profile

- Primary specialty: Internal Medicine
- Secondary specialties: GASTROENTEROLOGY
- Credential: MD
- Gender: Male
- Medical school: INDIANA UNIVERSITY SCHOOL OF MEDICINE
- Graduation year: 1976
- NPI: 1427051341 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1427051341))

## Practice and contact

- Practice name: Michiana Gastroenterology, Inc
- Address: 17501 Generations Dr, South Bend, IN, 466351589
- Phone: (574) 234-0049
- Group practice size: 12 members

## CMS quality measures (MIPS)

- Overall MIPS final score: 66.26/100
- Quality category score: 52.93/100
- Improvement Activities score: 40.00/100
- Cost category score: 50.28/100

Source: CMS Quality Payment Program. MIPS scores reflect Medicare provider performance on quality, cost, and care improvement measures.

## Insurance accepted (4 networks)

This provider is in network with the following insurance carriers, based on federal Transparency in Coverage filings and FHIR provider directories:

- [Cigna](https://ourhealthnetwork.com/insurance/cigna) — 17 plans
- [Humana](https://ourhealthnetwork.com/insurance/humana) — 11 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 4 plans
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan

To verify a specific plan covers John G Mathis, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1427051341).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 174 disclosed payments from medical industry sources totaling approximately $3,113.

Largest disclosed payer: ABBVIE INC. ($809 cumulative).

Source: CMS Open Payments program (federal financial-transparency dataset). Industry payment disclosures do not imply any wrongdoing; many are legitimate consulting fees, research support, or speaker honoraria.

## Related on OurHealthNetwork

- [More Internal Medicine doctors in SOUTH BEND, IN](https://ourhealthnetwork.com/internal-medicine/in/south-bend)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1427051341)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)