Alexander A. Lemmer
Distinguished in Cholangitis

Dr. Alexander A. Lemmer

Gastroenterology | Transplant Surgery
Piedmont Healthcare
Piedmont Transplant Institute
1968 Peachtree Road, N.w., 
Atlanta, GA 
Accepting New Patients
Offers Telehealth

Distinguished in Cholangitis
Piedmont Healthcare
Piedmont Transplant Institute
1968 Peachtree Road, N.w., 
Atlanta, GA 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Alexander Lemmer is a Gastroenterologist and a Transplant Surgeon in Atlanta, Georgia. Dr. Lemmer is rated as a Distinguished provider by MediFind in the treatment of Cholangitis. His top areas of expertise are Ascites, Alcoholic Cirrhosis, Cirrhosis, Hepatitis, and Liver Transplant. Dr. Lemmer is currently accepting new patients.

His clinical research consists of co-authoring 7 peer reviewed articles and participating in 1 clinical trial. MediFind looks at clinical research from the past 15 years.

Graduate Institution
McGaw Medical Center Of Northwestern University, Internal Medicine, 2017
Residency
McGaw Medical Center at Northwestern University, Internal Medicine, 2017
Specialties
Gastroenterology
Transplant Surgery
Licenses
Internal Medicine in GA
Board Certifications
American Board Of Internal Medicine
American Board Of Internal Medicine - Gastroenterology
American Board Of Internal Medicine - Transplant Hepatology
Fellowships
McGaw Medical Center at Northwestern University, Gastroenterology/Hepatology, 2020
McGaw Medical Center of Northwestern University, Transplant Hepatology, 2020
Hospital Affiliations
Piedmont Mountainside Hospital Inc
Piedmont Augusta Hospital
Coliseum Medical Centers, Llc, Dba
Piedmont Hospital, Inc
Piedmont Fayette Hospital
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Absolute Total Care South Carolina
  • HMO
  • MANAGED MEDICAID PLAN
  • MEDICARE-MEDICAID PLAN
Aetna
  • EPO
  • HMO
  • POS
  • PPO
Alliant Health
  • HMO
  • PPO
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
CareSource
  • HMO
Change Healthcare
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Cigna
  • EPO
  • HMO
  • PPO
Clover Health
  • INSURANCE PLAN
  • MEDICARE MAPD
Devoted Health
  • MEDICARE MAPD
  • OTHER MEDICARE
EmblemHealth
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE PART D
Friday Health

Accepted plan types not found. Please verify directly with the provider.

Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Kaiser Permanente
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER MEDICARE
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medica
  • EPO
  • HMO
  • PPO
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D
Meridian Choice
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Oscar
  • EPO
  • HMO
  • PPO
Premera Blue Cross
  • INSURANCE PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
  • PPO
TeamCare
  • OTHER COMMERCIAL
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Walgreens
  • MEDICARE DISCOUNT CARD
  • MEDICARE PDP
  • OTHER MEDICARE
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 23 Less Insurance Carriers -

Locations

Piedmont Transplant Institute
1968 Peachtree Road, N.w., Atlanta, GA 30309
Call: 404-605-4600

Additional Areas of Focus

Dr. Lemmer has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Non-Alcoholic Fatty Liver Disease
Nonalcoholic Steatohepatitis (NASH)

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


1 Clinical Trials

A Phase 2a, Double-Blind, Randomized, Active Controlled, Parallel Group Study Evaluating the Efficacy, Safety, and Tolerability of Bezafibrate Administered in Combination With Obeticholic Acid in Subjects With Primary Biliary Cholangitis
A Phase 2a, Double-Blind, Randomized, Active Controlled, Parallel Group Study Evaluating the Efficacy, Safety, and Tolerability of Bezafibrate Administered in Combination With Obeticholic Acid in Subjects With Primary Biliary Cholangitis
Enrollment Status: Completed
Publish Date: September 25, 2025
Intervention Type: Drug
Study Drugs: Bezafibrate, Obeticholic Acid
Study Phase: Phase 2

7 Total Publications

Recurrent brisk haematochezia in a patient with quiescent Crohn's disease.
Recurrent brisk haematochezia in a patient with quiescent Crohn's disease.
Journal: Frontline gastroenterology
Published: December 31, 2019
View All 7 Publications
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Lance L. Stein
Distinguished in Cholangitis
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Distinguished in Cholangitis
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1968 Peachtree Road, N.w., 
Atlanta, GA 
 (0.1 miles away)
404-605-4600
Languages Spoken:
English
See accepted insurances
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Dr. Lance Stein is transplant hepatologist and the Medical Director of Piedmont's Hepatology and Liver Transplant Program since 2021. He has been at Piedmont since 2010. He is a Clinical Assistant Professor of Medicine at Mercer University School of Medicine. His special interests include viral hepatitis, alcohol related liver disease, acute on chronic liver failure, metabolic associated steatotic liver disease (MASH/MAFLD), and autoimmune liver diseases (including but not limited to autoimmune hepatitis, primary biliary cholangitis, and primary sclerosing cholangitis). He also is an expert in management of the complications of liver cirrhosis including portal hypertension and liver cancers.He is a fellow for the American Association for the Study of Liver Diseases, American Gastroenterology Association, and the American College of Physicians. He has served on national committees for the American Association for the Study of Liver Diseases, American College of Gastroenterology, American Gastroenterology Association and the American Society of Transplantation.Following graduation from Temple University School of Medicine, he completed residency in internal medicine at Emory University School of Medicine, followed by a gastroenterology fellowship at the University of California, San Diego. He also completed a fellowship in advanced/transplant hepatology at both Columbia and Cornell-New York Presbyterian Hospitals. Dr. Stein is rated as a Distinguished provider by MediFind in the treatment of Cholangitis. His top areas of expertise are Liver Failure, Hepatitis, Cirrhosis, Hepato-Pancreato-Biliary Surgery, and Liver Transplant.

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Samir Parekh is a Transplant Surgeon in Atlanta, Georgia. Dr. Parekh has been practicing medicine for over 26 years and is rated as a Distinguished provider by MediFind in the treatment of Cholangitis. His top areas of expertise are Hepatitis, Enlarged Liver, Hepatitis C, Liver Transplant, and Endoscopy.

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Ramprasad Jegadeesan is a Gastroenterologist in Marietta, Georgia. Dr. Jegadeesan has been practicing medicine for over 17 years and is rated as an Advanced provider by MediFind in the treatment of Cholangitis. His top areas of expertise are Sclerosing Cholangitis, Cholangitis, Barrett Esophagus, Endoscopy, and Colonoscopy.

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Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Lemmer's expertise for a condition
ConditionClose
    • Distinguished
    • Alcoholic Cirrhosis
      Dr. Lemmer is
      Distinguished
      . Learn about Alcoholic Cirrhosis.
      See more Alcoholic Cirrhosis experts
    • Ascites
      Dr. Lemmer is
      Distinguished
      . Learn about Ascites.
      See more Ascites experts
    • Cholangitis
      Dr. Lemmer is
      Distinguished
      . Learn about Cholangitis.
      See more Cholangitis experts
    • Cirrhosis
      Dr. Lemmer is
      Distinguished
      . Learn about Cirrhosis.
      See more Cirrhosis experts
    • Hepatitis
      Dr. Lemmer is
      Distinguished
      . Learn about Hepatitis.
      See more Hepatitis experts
    • Liver Failure
      Dr. Lemmer is
      Distinguished
      . Learn about Liver Failure.
      See more Liver Failure experts
    View All 9 Distinguished Conditions
    • Advanced
    • Alpha-1 Antitrypsin Deficiency (AATD)
      Dr. Lemmer is
      Advanced
      . Learn about Alpha-1 Antitrypsin Deficiency (AATD).
      See more Alpha-1 Antitrypsin Deficiency (AATD) experts
    • Autoimmune Hepatitis
      Dr. Lemmer is
      Advanced
      . Learn about Autoimmune Hepatitis.
      See more Autoimmune Hepatitis experts
    • Banti's Syndrome
      Dr. Lemmer is
      Advanced
      . Learn about Banti's Syndrome.
      See more Banti's Syndrome experts
    • Budd-Chiari Syndrome
      Dr. Lemmer is
      Advanced
      . Learn about Budd-Chiari Syndrome.
      See more Budd-Chiari Syndrome experts
    • Caroli Disease
      Dr. Lemmer is
      Advanced
      . Learn about Caroli Disease.
      See more Caroli Disease experts
    • Enlarged Liver
      Dr. Lemmer is
      Advanced
      . Learn about Enlarged Liver.
      See more Enlarged Liver experts
    View All 21 Advanced Conditions
    • Experienced
    • Gallbladder Disease
      Dr. Lemmer is
      Experienced
      . Learn about Gallbladder Disease.
      See more Gallbladder Disease experts
    • Hepatitis A
      Dr. Lemmer is
      Experienced
      . Learn about Hepatitis A.
      See more Hepatitis A experts
    • Hepatitis B
      Dr. Lemmer is
      Experienced
      . Learn about Hepatitis B.
      See more Hepatitis B experts
    • Liver Cancer
      Dr. Lemmer is
      Experienced
      . Learn about Liver Cancer.
      See more Liver Cancer experts
    • Liver Transplant
      Dr. Lemmer is
      Experienced
      . Learn about Liver Transplant.
      See more Liver Transplant experts
    • Protein Deficiency
      Dr. Lemmer is
      Experienced
      . Learn about Protein Deficiency.
      See more Protein Deficiency experts
    View All 10 Experienced Conditions
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