Dr. Leonard B. Weinstock, MD

Dr. Weinstock practices at Advanced Endoscopy Center - Creve Coeur in Creve Coeur, Missouri.

Dr. Weinstock's NPI, 1467566703, was assigned on August 17, 2006. Dr. Weinstock graduated from University of Rochester School of Medicine and Dentistry in 1981. Dr. Weinstock holds Missouri license R4F99.

Dr. Weinstock's primary practice is Advanced Endoscopy Center - Creve Coeur, at 11525 Olde Cabin Road, suite 101, Creve Coeur, MO 63141. The practice phone is (314) 400-9999.

Dr. Weinstock's primary practice is Advanced Endoscopy Center - Creve Coeur in Creve Coeur, Missouri. Dr. Weinstock is also affiliated with Barnes-Jewish Hospital. The medical group on file is Digestive Health Specialists. Dmand AI also links Dr. Weinstock to 3 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.

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

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

CMS data shows 13,019 Medicare services from Dr. Weinstock across 21 procedure codes in 2024, for 851 Medicare patients. Medicare paid $374,837 for them.

CMS counts 851 Medicare patients who saw Dr. Weinstock in 2024. The largest group is 65 to 74, with 455 patients. 72% of them have high cholesterol, and 63% have high blood pressure. 2% are also on Medicaid. Their average risk score is 0.96, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Weinstock's median patient age at 63, with 65% women.

In 2024, Dr. Weinstock wrote 2,906 Medicare Part D claims for 1,040 patients. 77% of them were for generic drugs. CMS names the drug for 2,558 of them, across 53 drugs with 11 or more claims each, at $2,186,569 in total drug cost. In 2023, CMS named 2,109 claims across 46 drugs.

Dr. Weinstock accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Weinstock as offering telehealth. CMS counts 192 procedures of colonoscopy by Dr. Weinstock, more than 93% of the clinicians it reports for that procedure.

Dmand AI links 38 papers to Dr. Weinstock, published from 2011 to 2025. 2020 was the busiest year, with 4. The most frequent topics are Mast Cells, Mastocytosis and Restless Legs Syndrome. Dr. Weinstock has published most often in J Clin Sleep Med. Dr. Weinstock's most frequent co-authors are Lawrence B. Afrin, MD, Arthur Scott Walters, MD and Erik P. Thyssen, MD.

Dmand AI links Dr. Weinstock to 5 clinical trials. Conditions studied include Rectal Diseases, Colorectal Neoplasms and Clostridium Infections. Exact Sciences Corporation sponsors the most, 3.

CMS Open Payments shows 1,648 general payments to Dr. Weinstock from 55 drug and device companies from 2016 to 2025. Education speaker fees make up the largest share, 59% of the total. Valeant Pharmaceuticals International paid the most, $102,228.

Dr. Weinstock graduated from University of Rochester School of Medicine and Dentistry in 1981.