Surgery in Barrington, Illinois
Data updated monthly · Last refresh September 2026
8 Surgery providers practice in Barrington. Listings are drawn from federal public records and are not endorsements.
Surgery providers in Barrington
Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Barry Rosen, M.D.Barrington, IL · $20,679 in drug and device payments (2025) ·
(847) 381-8161 Dr. Daniel Hoeltgen, M.D.Barrington, IL · $1,266 in drug and device payments (2025) ·
(847) 381-6051 Dr. David Ondrula, MDBarrington, IL · $114 in drug and device payments (2025) ·
(847) 381-8161 Dr. Hsin-yi Chang, MDBarrington, IL · $43 in drug and device payments (2025) ·
(847) 381-8161 Dr. Jill Motl, MDBarrington, IL · $201 in drug and device payments (2025) ·
(847) 381-8161 Dr. John Cheregi, M.D.Barrington, IL · $662 in drug and device payments (2025) ·
(847) 381-8161 Dr. Robert Flanigan, M.D.Barrington, IL · $480 in drug and device payments (2025) ·
(847) 381-6051 Dr. Robert Witkowski, M.D.Barrington, IL · No drug or device payments recorded (2025) ·
(847) 381-6051 Common questions
How many Surgery providers are in Barrington, Illinois?There are 8 Surgery providers with active NPI records practicing in Barrington, according to federal NPPES data refreshed monthly.
Where does this data come from?Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
All specialties in Barrington Surgery across Illinois
