# Olwen M Hahn, MD

Source: https://ourhealthnetwork.com/doctor/olwen-hahn-md-1992823611
NPI: 1992823611
Data source: CMS NPI Registry (DAC), refreshed monthly

## Quick facts

Olwen M Hahn, MD is a hematology/oncology based in Chicago, IL practicing at University Of Chicago with NPI 1992823611 and offers telehealth visits.

## Profile

- Primary specialty: Hematology/Oncology
- Secondary specialties: INTERNAL MEDICINE
- Credential: MD
- Gender: Female
- Medical school: EMORY UNIVERSITY SCHOOL OF MEDICINE
- Graduation year: 2001
- Telehealth: Yes
- NPI: 1992823611 ([NPPES record](https://npiregistry.cms.hhs.gov/provider-view/1992823611))

## Practice and contact

- Practice name: University Of Chicago
- Address: 355 E Grand Ave, Chicago, IL, 606115389
- Phone: (888) 824-0200
- Group practice size: 1660 members

## CMS quality measures (MIPS)

- Overall MIPS final score: 97.72/100
- Quality category score: 75.44/100
- Promoting Interoperability score: 100.00/100
- Improvement Activities score: 40.00/100

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

## Insurance accepted (8 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) — 95 plans
- [Cigna](https://ourhealthnetwork.com/insurance/cigna) — 10 plans
- [Humana](https://ourhealthnetwork.com/insurance/humana) — 10 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 Olwen M Hahn, use the [OurHealthNetwork Insurance Matcher](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1992823611).

## Industry payments disclosure (CMS Open Payments)

Per CMS Open Payments data (most recent year 2024), this provider has received 11 disclosed payments from medical industry sources totaling approximately $1,737.

Largest disclosed payer: AstraZeneca UK Limited ($1,737 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 Hematology/Oncology doctors in CHICAGO, IL](https://ourhealthnetwork.com/hematology-oncology/il/chicago)
- [Find insurance plans that cover this doctor](https://ourhealthnetwork.com/tools/insurance-matcher?npis=1992823611)
- [Browse all 5.5M US healthcare providers](https://ourhealthnetwork.com/find-doctors)
- [About our data and methodology](https://ourhealthnetwork.com/methodology)