Dr. Ari M. Grinspan, MD

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

Dr. Grinspan's NPI, 1144489105, was assigned on June 5, 2008. Dr. Grinspan graduated from Albert Einstein College of Medicine of Yeshiva University in 2008. Dr. Grinspan holds New York license 261448.

Dr. Grinspan'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. Grinspan also practices at The Mount Sinai Hospital, 1 Gustave L Levy Pl, New York, NY 10029.

Dr. Grinspan's primary practice is The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System. The medical group on file is Mount Sinai Institute for Liver Medicine. Dmand AI also links Dr. Grinspan to 1 more group practice or clinic, named with a free account.

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

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

CMS data shows 648 Medicare services from Dr. Grinspan across 16 procedure codes in 2024, for 355 Medicare patients. Medicare paid $74,262 for them.

CMS counts 355 Medicare patients who saw Dr. Grinspan in 2024. The largest group is 65 to 74, with 147 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 25% are also on Medicaid. Their average risk score is 1.92, 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. Grinspan's median patient age at 59, with 51% women.

In 2024, Dr. Grinspan wrote 554 Medicare Part D claims for 143 patients. 76% of them were for generic drugs. CMS names the drug for 406 of them, across 12 drugs with 11 or more claims each, at $146,386 in total drug cost. In 2023, CMS named 343 claims across 15 drugs.

Dr. Grinspan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Grinspan as offering telehealth. CMS counts 64 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Grinspan, more than 68% of the clinicians it reports for that procedure.

Dmand AI links 37 papers to Dr. Grinspan, published from 2015 to 2024. 2020 was the busiest year, with 9. The most frequent topics are Fecal Microbiota Transplantation, Clostridium Infections and Clostridioides difficile. Dr. Grinspan has published most often in Dig Dis Sci. Dr. Grinspan's most frequent co-authors are Yuying Luo, MD, Monika Fischer, MD and Jose Clemente, MD.

Dmand AI links Dr. Grinspan to 3 clinical trials. 1 is still active or recruiting. Conditions studied include Colitis, Ulcerative, Crohn Disease and Colitis. Open Payments lists research payments to Dr. Grinspan that name 1 trial.

CMS Open Payments shows 122 general payments to Dr. Grinspan from 15 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 76% of the total. Ferring Pharmaceuticals Inc. paid the most, $41,728. It also lists 1 research payment totaling $113 in 2019, naming 1 clinical trial.

Dr. Grinspan graduated from Albert Einstein College of Medicine of Yeshiva University in 2008.