Dr. Eugene Greenberg, MD
Gastroenterology (Gastroenterology Physician)
At a glance
- In the NPI registry since
- 2006
Licensed in Illinois since 1968, according to the Illinois Department of Financial and Professional Regulation. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Gastroenterology Physician primary
IL license 036041858 (first issued 1968; not renewed)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Industry-funded research
Named as a principal investigator on 1 industry-funded study in 2025, from 1 company. The companies reported $8,983 in research payments for these studies, mostly to the institutions running them.
- A Study to Evaluate the Long-Term Safety and Efficacy of Upadacitinib (ABT-494) in Participants With Ulcerative Colitis (UC)
AbbVie Inc. · Active, not recruiting · NCT03006068
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.