Dr. Ahmed Aly Messallam, MD

Dr. Messallam practices at Wellstar Kennestone Regional Medical Center in Marietta, Georgia, part of Wellstar Health System.

Dr. Messallam's NPI, 1629489547, was assigned on May 13, 2014. Dr. Messallam holds Georgia license 74933.

Dr. Messallam's primary practice is Wellstar Kennestone Regional Medical Center, at 677 Church Street, Marietta, GA 30060 in Cobb County. The practice phone is (770) 793-5000.

Dr. Messallam's primary practice is Wellstar Kennestone Regional Medical Center in Marietta, Georgia, part of Wellstar Health System. Dr. Messallam is also affiliated with Wellstar Windy Hill. The medical group on file is Wellstar Medical Group. Dmand AI also links Dr. Messallam to 5 more hospitals and 1 group practice or clinic, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Messallam practices, 8 sites in all. Vendor and product names are available with a free account.

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

CMS data shows 554 Medicare services from Dr. Messallam across 13 procedure codes in 2024, for 216 Medicare patients. Medicare paid $53,374 for them.

CMS counts 216 Medicare patients who saw Dr. Messallam in 2024. The largest group is 65 to 74, with 109 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.32, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Messallam's median patient age at 70, with 61% women.

In 2024, Dr. Messallam wrote 624 Medicare Part D claims for 245 patients. 84% of them were for generic drugs. CMS names the drug for 480 of them, across 10 drugs with 11 or more claims each, at $28,494 in total drug cost. In 2023, CMS named 365 claims across 10 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Messallam for performance year 2024, reported through an alternative payment model (APM). Dr. Messallam accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Messallam as offering telehealth. CMS counts 245 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Messallam, more than 93% of the clinicians it reports for that procedure.

Dmand AI links 28 papers to Dr. Messallam, published from 2013 to 2021. 2014 was the busiest year, with 10. The most frequent topics are Drainage, Stents and Endosonography. Dr. Messallam has published most often in Endoscopy. Dr. Messallam's most frequent co-authors are Mouen A. Khashab, MD, Vivek Kumbhari, MD and Mohamad H. El Zein, MD.

CMS Open Payments shows 62 general payments to Dr. Messallam from 21 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 72% of the total. Boston Scientific Corporation paid the most, $1,575.