# Christopher Greb, MD

Source: https://ourhealthnetwork.com/doctor/christopher-greb-md-1134623895
NPI: 1134623895
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

Christopher Greb, MD is a allergy/immunology based in Chicago, IL practicing at Rush University Medical Group with NPI 1134623895.

## Profile

- Primary specialty: Allergy/Immunology
- Secondary specialties: INTERNAL MEDICINE
- Credential: MD
- Gender: Male
- Medical school: UNIVERSITY OF LOUISVILLE SCHOOL OF MEDICINE
- Graduation year: 2020
- NPI: 1134623895 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1134623895))

## Practice and contact

- Practice name: Rush University Medical Group
- Address: 1625 N Harlem Ave, Chicago, IL, 607074303
- Phone: (708) 312-0360
- Group practice size: 1490 members

## Insurance accepted (6 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) — 11 plans
- [Aetna](https://ourhealthnetwork.com/insurance/aetna) — 6 plans
- [Molina Healthcare](https://ourhealthnetwork.com/insurance/molina-healthcare) — 4 plans
- [Highmark BCBS Pennsylvania](https://ourhealthnetwork.com/insurance/highmark-bcbs-pennsylvania) — 1 plan
- [Medicare](https://ourhealthnetwork.com/insurance/medicare) — 1 plan

To verify a specific plan covers Christopher Greb, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1134623895).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 9 disclosed payments from medical industry sources totaling approximately $848.

Largest disclosed payer: AstraZeneca Pharmaceuticals LP ($343 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 Allergy/Immunology doctors in CHICAGO, IL](https://ourhealthnetwork.com/allergy-immunology/il/chicago)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1134623895)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)