Dr. Alexander A. Lemmer, MD

Dr. Lemmer practices at Piedmont Atlanta in Atlanta, Georgia, part of Piedmont Healthcare.

Dr. Lemmer's NPI, 1104168681, was assigned on March 21, 2013. Dr. Lemmer graduated from University of Virginia School of Medicine in 2013. Dr. Lemmer holds Georgia license 84644.

Dr. Lemmer's primary practice is Piedmont Atlanta, at 1968 Peachtree Rd NW, Atlanta, GA 30309 in Fulton County. The practice phone is (404) 605-5000.

Dr. Lemmer's primary practice is Piedmont Atlanta in Atlanta, Georgia, part of Piedmont Healthcare. Dr. Lemmer is also affiliated with Piedmont Augusta. The medical group on file is Piedmont Physicians Obstetrics and Gynecology of Jasper. Dmand AI also links Dr. Lemmer to 3 more hospitals, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lemmer practices, 5 sites in all. Vendor and product names are available with a free account.

Transplant hepatology is Dr. Lemmer's primary specialty in the NPI Registry, under taxonomy code 207RT0003X. Dr. Lemmer is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Lemmer's licenses on file in 2 states: Georgia and Illinois.

CMS data shows 401 Medicare services from Dr. Lemmer across 7 procedure codes in 2024, for 215 Medicare patients. Medicare paid $30,644 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 215 Medicare patients who saw Dr. Lemmer in 2024. The largest group is 65 to 74, with 130 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 13% are also on Medicaid. Their average risk score is 2.68, 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. Lemmer's median patient age at 59, with 49% women.

In 2024, Dr. Lemmer wrote 1,442 Medicare Part D claims for 210 patients. 85% of them were for generic drugs. CMS names the drug for 1,242 of them, across 29 drugs with 11 or more claims each, at $395,051 in total drug cost. In 2023, CMS named 979 claims across 26 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Lemmer for performance year 2024, reported through an alternative payment model (APM). Dr. Lemmer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lemmer as offering telehealth. CMS counts 75 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Lemmer, more than 71% of the clinicians it reports for that procedure.

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links 6 papers to Dr. Lemmer, published from 2015 to 2020. 2018 was the busiest year, with 2. Dr. Lemmer has published most often in Clin Liver Dis (Hoboken). Dr. Lemmer's most frequent co-authors are Leila Kia, MD, Lisa B. Vanwagner, MD and Emanuelle A L Bellaguarda, MD.

Dmand AI links Dr. Lemmer to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Liver Cirrhosis, Biliary and Cholestasis, Intrahepatic.

CMS Open Payments shows 123 general payments to Dr. Lemmer from 19 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 68% of the total. Boston Scientific Corporation paid the most, $3,406.

Dr. Lemmer graduated from University of Virginia School of Medicine in 2013.