
Overview
Dr. Stewart Karr is a diagnostic radiology specialist with a concentration in interventional radiology. He received his medical degree from New York University School of Medicine in 1986 and completed his residency and a fellowship in interventional radiology at George Washington University Hospital. He has been a member of the Diagnostic Medical Imaging practice, which provides diagnostic and interventional radiology services at Johns Hopkins Howard County Medical Center in Columbia, Maryland.
Dr. Karr is rated as an Experienced provider by MediFind in the treatment of Bile Duct Stricture. His top areas of expertise are Pleural Effusion, Pleurisy, Ascites, Vertebroplasty, and Bone Graft.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- HMO
- POS
- PPO
- EPO
- HMO
- PPO
- INSURANCE PLAN
- MEDICARE PDP
- PPO
- HMO
- POS
- PPO
Locations
Silver Spring, MD 20918
The Johns Hopkins Hospital
Dr. Elie Portnoy is an Assistant Professor of Radiology and Radiological Science in the Johns Hopkins Medicine Interventional Radiology Department and Diagnostic Imaging Department at Johns Hopkins Hospital. Dr. Portnoy received his undergraduate degree, Summa Cum Laude, in Biology from Yeshiva University. He earned his medical degree from NYU School of Medicine with Alpha Omega Alpha. Dr. Portnoy is rated as an Advanced provider by MediFind in the treatment of Bile Duct Stricture. His top areas of expertise are Bile Duct Stricture, Cholestasis, Bile Duct Obstruction, Liver Embolization, and Gastrostomy.
Foundation Radiology Group PC
David Lee is an Interventional Radiologist and a Radiologist in La Plata, Maryland. Dr. Lee is rated as a Distinguished provider by MediFind in the treatment of Bile Duct Stricture. His top areas of expertise are Ascites, Bile Duct Stricture, Alcoholic Cirrhosis, Gastrostomy, and Bone Marrow Aspiration. Dr. Lee is currently accepting new patients.
Johns Hopkins University
Dr. Brian Holly is an assistant professor of radiology and radiological science. Dr. Holly's clinical focus lies in venous thromboembolic disease. He specializes in the diagnosis and treatment of deep venous thrombosis, pulmonary embolism, post thrombotic syndrome; advanced venous interventions including prostatic artery embolization (PAE); IVC filter removal; treatment of vascular malformations; treatment of uterine fibroids and advanced biliary interventions. Dr. Holly received his M.D. from the University of Maryland School of Medicine in 2007. He completed an internship in internal medicine at Mercy Medical Center in 2008. He completed residency in radiology in 2012 at the University of Maryland Medical Center. This was followed by a fellowship in vascular and interventional radiology in 2013 at The Johns Hopkins Hospital. He is a member of the Society of Interventional Radiology. Recent News Articles and Media Coverage Minimally Invasive Treatment for Uterine Fibroids Webinar Uterine fibroids are non-cancerous growths that develop from the muscle tissue of the uterus. Interventional radiologist, Brian Holly, M.D., and gynecologist, Khara Simpson, M.D., hosted this interactive webinar to discuss a non-surgical alternative for uterine fibroids called uterine fibroid embolization. Dr. Holly is rated as an Advanced provider by MediFind in the treatment of Bile Duct Stricture. His top areas of expertise are Deep Vein Thrombosis, Enlarged Prostate (BPH), Cholangiocarcinoma (Bile Duct Cancer), Gastrostomy, and Liver Embolization.
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
- Distinguished
- Pleural EffusionDr. Karr isDistinguished. Learn about Pleural Effusion.
- PleurisyDr. Karr isDistinguished. Learn about Pleurisy.
- Advanced
- AscitesDr. Karr isAdvanced. Learn about Ascites.
- StrokeDr. Karr isAdvanced. Learn about Stroke.
- Experienced
- Alcoholic CirrhosisDr. Karr isExperienced. Learn about Alcoholic Cirrhosis.
- ALK-Positive Non-Small Cell Lung Cancer
- Bile Duct ObstructionDr. Karr isExperienced. Learn about Bile Duct Obstruction.
- Bile Duct StrictureDr. Karr isExperienced. Learn about Bile Duct Stricture.
- BoilsDr. Karr isExperienced. Learn about Boils.
- Bone GraftDr. Karr isExperienced. Learn about Bone Graft.

