Joseph MarekMD
Joseph Marek, MD is a Cardiology provider in Downers Grove, IL, as of July 2026.
- NPI1548216302
- Registered2006
- Class of1975
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
Joseph Marek at a glance
- Provider
- Joseph Marek
- Credential
- MD
- Specialty
- Cardiovascular Disease (Cardiology)
- Procedures
- Cardiology CPT codes
- Location
- Downers Grove, IL
- Medical school
- Loyola University of Chicago, Stritch School of Medicine
- Graduated
- 1975
- NPI registered
- 2006
- NPI
- 1548216302
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Joseph Marek practice?
Joseph Marek, MD is based in Downers Grove, IL. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Joseph Marek's NPI number?
Joseph Marek's National Provider Identifier (NPI) is 1548216302, registered in 2006. Specialty on record: Cardiovascular Disease (Cardiology); credential MD.
Where did Joseph Marek go to medical school?
Joseph Marek, MD attended Loyola University of Chicago, Stritch School of Medicine, graduating in 1975.
How many Cardiology providers in Illinois work at ambulatory surgery centers?
110 Cardiology surgeons and proceduralists in Illinois are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Joseph Marek among them. The Illinois Cardiology directory lists each one by city with credential, NPI, and center affiliations.
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