Dr. Jaroslav Zivny, MD

Dr. Zivny practices at Umass Memorial Medical Center in Mendon, Massachusetts.

Dr. Zivny's NPI, 1144203076, was assigned on November 23, 2005. Dr. Zivny holds Massachusetts license 209607.

Dr. Zivny's primary practice is Umass Memorial Medical Center, at 55 North Ave, Mendon, MA 01756 in Worcester County. The practice phone is (508) 334-1000.

Dr. Zivny's primary practice is Umass Memorial Medical Center in Mendon, Massachusetts. Dr. Zivny is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is UMass Memorial Medical Group. Dmand AI also links Dr. Zivny to 5 more hospitals and 3 medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zivny practices, 6 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Zivny's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Zivny is licensed in Massachusetts.

CMS data shows 722 Medicare services from Dr. Zivny across 19 procedure codes in 2024, for 398 Medicare patients. Medicare paid $92,541 for them.

CMS counts 398 Medicare patients who saw Dr. Zivny in 2024. The largest group is 65 to 74, with 172 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 27% are also on Medicaid. Their average risk score is 1.63, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Zivny's median patient age at 74, with 43% women.

In 2024, Dr. Zivny wrote 360 Medicare Part D claims for 205 patients. 92% of them were for generic drugs. CMS names the drug for 327 of them, across 8 drugs with 11 or more claims each, at $9,319 in total drug cost. In 2023, CMS named 305 claims across 7 drugs.

Dr. Zivny accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 657 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Zivny, more than 99% of the clinicians it reports for that procedure.

Dmand AI links 11 papers to Dr. Zivny, published from 2016 to 2025. 2021 was the busiest year, with 3. Dr. Zivny has published most often in ACG Case Rep J. Dr. Zivny's most frequent co-authors are Neil B. Marya, MD, Prashanth Rau, MD and Mark Hanscom, MD.

Dmand AI links Dr. Zivny to 1 clinical trial. Conditions studied include Pancreatitis, Acute Necrotizing and Pancreatitis.

CMS Open Payments shows 57 general payments to Dr. Zivny from 12 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 61% of the total. Olympus Medical Systems Corporation paid the most, $3,565.