John Gaetano is a Gastroenterology physician affiliated with University of Chicago. OpenAlex indexes 38 publications with 1,017 citations (h-index 10).
Overview
Scholarship
indexed output and impact (OpenAlex)Distinct works indexed by OpenAlex.
Total citations across indexed works.
Hirsch index, productivity × impact (OpenAlex).
Clinical & industry
trials, payments and federal fundingContact
The practice address and phone this provider lists in the federal NPPES (CMS) registry.
Practice address
1475 E Belvidere Rd
Suite 301
Grayslake, IL 600302012
Telephone
847-295-1300Provider last certified this registry record 10 Sept 2021.
Industry payments
1 company reported payments to CMS in program years 2021 onward. These are public disclosures, not judgments. The latest:
- ABBVIE INC.Program year20241 payment
- ABBVIE INC.Program year20231 payment
Payment records matched to this physician's NPI in CMS Open Payments, program years 2021 onward.
Medicare prescribing footprint (2024)
The drugs this prescriber writes for Medicare patients, grouped by drug class and therapeutic area. Every percentage is a share of their total prescribing, so you can see what they prescribe most. These are proportions, not patient counts or dollar amounts. No condition is inferred: the claims record what was prescribed, never why.
Metabolism & gastrointestinal
70.2%Proton pump inhibitor40.8%Omeprazole62%Pantoprazole Sodium27%Esomeprazole Magnesium9%Dexlansoprazole Dr2%Part D<11 patientsBile Acid7.1%Ursodiol100%Part D≥22 patients+ 8 more classes in this area
Cardiovascular
18.3%Beta blocker5.8%Nadolol53%Carvedilol47%Part D<11 patientsBile Acid Sequestrant4.8%Colestipol Hcl100%Part D≥24 patients+ 2 more classes in this area
Cancer & immunology
4.9%Purine Antimetabolite2.6%Azathioprine100%Part D≥11 patientsNucleoside Metabolic Inhibitor2.3%Mercaptopurine100%Part D<11 patients
Drug classes come from the WHO ATC and U.S. National Library of Medicine (RxClass) classifications; prescribing counts come from the CMS Medicare Part D Prescribers file. Each drug is counted once, under its primary class. Medicare fee-for-service only, so no Medicare Advantage, commercial, or pediatric prescribing is included. CMS publishes this data about 17 months after the fact.
Publications
Matched to this physician's OpenAlex author record; most-cited works shown first.
- Risk Factors for Clostridium difficile Isolation in Inflammatory Bowel Disease: A Prospective Study
Digestive Diseases and Sciences
2018 - Correction to: Risk Factors for Clostridium difficile Isolation in Inflammatory Bowel Disease: A Prospective Study
Digestive Diseases and Sciences
2018 - Patients With Ulcerative Colitis and Primary Sclerosing Cholangitis Frequently Have Subclinical Inflammation in the Proximal Colon
Clinical Gastroenterology and Hepatology
2017
Similar KOLs
Other experts from the same institution or the same specialty.
Everett Vokes, MD
University of Chicago
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University of Chicago
Mary Rinella, MD
University of Chicago
Hedy Kindler, MD
University of Chicago
A basic profile from our physician directory: identity and practice contact from the federal NPPES registry, research from OpenAlex, trials from ClinicalTrials.gov, payments from CMS Open Payments — shown itemized where we have matched records, as a count where we only have a total. This person hasn't been through our full identity-adjudication pipeline yet, so funding, congress activity and public presence aren't shown. Absence of a section means “not yet looked,” never “none found.”