# John P Hammerstein, MD

Source: https://ourhealthnetwork.com/doctor/john-hammerstein-md-1265573307
NPI: 1265573307
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

John P Hammerstein, MD is a orthopedic surgery based in Linton, IN practicing at Greene County General Hospital with NPI 1265573307.

## Profile

- Primary specialty: Orthopedic Surgery
- Secondary specialties: SPORTS MEDICINE
- Credential: MD
- Gender: Male
- Medical school: INDIANA UNIVERSITY SCHOOL OF MEDICINE
- Graduation year: 2002
- NPI: 1265573307 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1265573307))

## Practice and contact

- Practice name: Greene County General Hospital
- Address: 1185 N 1000, Linton, IN, 474415282
- Phone: 81284722812054
- Group practice size: 97 members

## Insurance accepted (7 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
- [UnitedHealthcare](https://ourhealthnetwork.com/insurance/unitedhealthcare) — 12 plans
- [Humana](https://ourhealthnetwork.com/insurance/humana) — 10 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 3 plans
- [Oxford Health Plans (UHC)](https://ourhealthnetwork.com/insurance/oxford-health-plans-uhc) — 2 plans
- [UMR](https://ourhealthnetwork.com/insurance/umr) — 2 plans
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan

To verify a specific plan covers John P Hammerstein, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1265573307).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 1 disclosed payment from medical industry sources totaling approximately $18.

Largest disclosed payer: Smith+Nephew, Inc. ($18 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 Orthopedic Surgery doctors in LINTON, IN](https://ourhealthnetwork.com/orthopedic-surgery/in/linton)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1265573307)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)