Dr. James Francis Marion, MD

Dr. Marion practices at The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System.

Dr. Marion's NPI, 1306869474, was assigned on July 26, 2006. Dr. Marion graduated from Icahn School of Medicine at Mount Sinai in 1995. Dr. Marion holds New York license 183069.

Dr. Marion's primary practice is The Mount Sinai Hospital, at One Gustave L Levy Place, New York, NY 10029 in New York County. The practice phone is (212) 241-7981. Dr. Marion also practices at The Mount Sinai Hospital, 1 Gustave L Levy Pl, New York, NY 10029.

Dr. Marion's primary practice is The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System. Dr. Marion is also affiliated with Mount Sinai Beth Israel. The medical group on file is Mount Sinai Institute for Liver Medicine.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marion practices, 2 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Marion's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Marion is licensed in New York.

CMS data shows 524 Medicare services from Dr. Marion across 7 procedure codes in 2024, for 296 Medicare patients. Medicare paid $49,426 for them.

CMS counts 296 Medicare patients who saw Dr. Marion in 2024. The largest group is 65 to 74, with 129 patients. 73% of them have high cholesterol, and 66% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.97, 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. Marion's median patient age at 51, with 48% women.

In 2024, Dr. Marion wrote 1,169 Medicare Part D claims for 188 patients. 62% of them were for generic drugs. CMS names the drug for 953 of them, across 27 drugs with 11 or more claims each, at $4,938,330 in total drug cost. In 2023, CMS named 824 claims across 25 drugs.

Dr. Marion accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Marion as offering telehealth. CMS counts 19 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Marion, more than 49% of the clinicians it reports for that procedure.

Dmand AI links 10 papers to Dr. Marion, published from 2013 to 2023. 2021 was the busiest year, with 2. The most frequent topics are Colorectal Neoplasms, Inflammatory Bowel Diseases and Crohn Disease. Dr. Marion's most frequent co-authors are Thomas A. Ullman, MD, Steven H. Itzkowitz, MD and Bruce Eric Sands, MD.

Dmand AI links Dr. Marion to 3 clinical trials. Conditions studied include Crohn Disease and Inflammatory Bowel Diseases. Takeda sponsors the most, 2.

CMS Open Payments shows 108 general payments to Dr. Marion from 7 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 79% of the total. Janssen Pharmaceuticals, Inc paid the most, $65,591.

Dr. Marion graduated from Icahn School of Medicine at Mount Sinai in 1995.