# Gerald J Osher, MD

Source: https://ourhealthnetwork.com/doctor/gerald-osher-md-1326056136
NPI: 1326056136
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

Gerald J Osher, MD is a internal medicine based in Bannockburn, IL practicing at Brent M Nathan Md Pllc with NPI 1326056136.

## Profile

- Primary specialty: Internal Medicine
- Credential: MD
- Gender: Male
- Medical school: UNIVERSITY OF MICHIGAN MEDICAL SCHOOL
- Graduation year: 1980
- NPI: 1326056136 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1326056136))

## Practice and contact

- Practice name: Brent M Nathan Md Pllc
- Address: 2101 Waukegan Rd, Suite 104, Bannockburn, IL, 600151836
- Phone: (847) 317-1717
- Group practice size: 4 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:

- [HCSC: BCBS Illinois](https://ourhealthnetwork.com/insurance/hcsc-bcbs-illinois) — 78 plans
- [Cigna](https://ourhealthnetwork.com/insurance/cigna) — 18 plans
- [UnitedHealthcare](https://ourhealthnetwork.com/insurance/unitedhealthcare) — 8 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 6 plans
- [UMR](https://ourhealthnetwork.com/insurance/umr) — 3 plans
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan
- [Oxford Health Plans (UHC)](https://ourhealthnetwork.com/insurance/oxford-health-plans-uhc) — 1 plan

To verify a specific plan covers Gerald J Osher, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1326056136).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 4 disclosed payments from medical industry sources totaling approximately $86.

Largest disclosed payer: Astellas Pharma US Inc ($28 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 BANNOCKBURN, IL](https://ourhealthnetwork.com/internal-medicine/il/bannockburn)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1326056136)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)