Dr. Vivek Kesar, MD

Dr. Kesar practices at Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University.

Dr. Kesar's NPI, 1558629857, was assigned on April 25, 2012. Dr. Kesar holds Virginia license 0101270872.

Dr. Kesar's primary practice is Stony Brook University Hospital, at Health Sciences Center Suny, Stony Brook, NY 11794 in Suffolk County. The practice phone is (631) 444-4000. Dr. Kesar also practices at Stony Brook University Hospital, 101 Nicolls Rd, Stony Brook, NY 11794.

Dr. Kesar's primary practice is Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University. The medical group on file is Stony Brook Internists. Dmand AI also links Dr. Kesar to 3 more medical groups, 2 group practices and clinics and 1 clinical lab, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kesar practices, 4 sites in all. Vendor and product names are available with a free account.

Internal medicine is Dr. Kesar's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Kesar's licenses on file in 2 states: Virginia and Massachusetts.

CMS data shows 339 Medicare services from Dr. Kesar across 14 procedure codes in 2024, for 207 Medicare patients. Medicare paid $45,232 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 207 Medicare patients who saw Dr. Kesar in 2024. The largest group is 65 to 74, with 99 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.65, 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. Kesar's median patient age at 64, with 46% women.

In 2024, Dr. Kesar wrote 32 Medicare Part D claims for 22 patients. 97% of them were for generic drugs. CMS names the drug for 28 of them, across 1 drug with 11 or more claims each, at $433 in total drug cost. In 2022, CMS named 57 claims across 3 drugs.

Dr. Kesar accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kesar as offering telehealth. CMS counts 402 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Kesar, more than 97% of the clinicians it reports for that procedure.

CMS Open Payments shows 168 general payments to Dr. Kesar from 18 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 55% of the total. Boston Scientific Corporation paid the most, $5,588.