Dr. Mohammed Kalan is a general surgeon affiliated with Sibley Memorial Hospital and George Washington University Hospital. He practices out of the Washington Institute of Surgery in Washington, D.C. and Chevy Chase, Md. Dr. Kalan has an expertise in abdominal surgery, clinical gastroenterology, colorectal surgery, gastrointestinal cancers, minimally invasive gastrointestinal surgery and robotic surgery. Dr. Kalan earned his MBBS from Byramjee Jeejeebhoy Medical College in India. He completed a residency in general surgery at Temple University School of Medicine, followed by a fellowship in laparoscopic surgery at George Washington University School of Medicine. Dr. Kalan is a fellow of the American College of Surgeons and the Royal College of Surgeons of London and Edinburgh, U.K. Dr. Kalan has earned numerous awards. His teaching awards include the Outstanding Faculty Teacher for the Department of Surgery from Georgetown University Hospital in 2001; the Golden Apple Award Nomination from Georgetown University Medical School in 2000; the Georgetown Caring Star from Georgetown University Hospital in 2009 and 2003; and the W.L. Gore/Stuart I. Myers Award for Academic Excellence from Temple University in 1998. Dr. Kalan has also been named one of America’s Top Surgeons by the Consumers’ Research Council of America from 2010-2014; and a Top Doctor in General and Laparoscopic Surgery by Washingtonian magazine in 2002. Dr. Kalan is rated as a Distinguished provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Retroperitoneal Inflammation, Gallbladder Disease, Appendicitis, Hernia Surgery, and Colostomy.

Dr. Alexandra Roginsky is a fellowship-trained surgeon with expertise in robotic, minimally invasive and trauma surgery. Dr. Roginsky has two decades of broad surgical experience and is dedicated to finding the most effective, least invasive, way to treat patients. She completed her fellowship training at the University of Illinois at Chicago, her residency at the Medical College of Wisconsin and medical school at Northwestern University Feinberg School of Medicine. She has been listed as a top surgeon by the Consumer’s Research Council of America and is widely published in multiple fields, including minimally invasive surgery and cancer biology. Videos Alexandra B. Roginsky, M.D.Acute Care and Trauma Surgeon Selected Publications Alexandra B. Roginsky, Alexander Tsesis, Hate speech, volition, and neurology, Journal of Law and the Biosciences, Volume 3, Issue 1, April 2016, Pages 174–177, https://doi.org/10.1093/jlb/lsv058 Roginsky, Alexandra. For Our Patients: On Becoming the Surgeon Advocate, Leader, and Learner. (2019). American College of Surgeons. https://www.facs.org/member-services/yfa/advocacy-essays/2019/aroginsky Roginsky, Alexandra. Young Fellows Advocacy and Action. American College of Surgeons. (2018). https://www.facs.org/member-services/yfa/advocacy-essays/2018/roginsky. Dr. Tsesis is rated as an Advanced provider by MediFind in the treatment of Retroperitoneal Inflammation. Her top areas of expertise are Diverticular Disease, Paget Disease of the Breast, Breast Cancer, Colostomy, and Small Bowel Resection.

Dr. James Robey is a Johns Hopkins surgeon who specializes in minimally invasive procedures. He has provided surgical services to Washington-area residents for over 30 years. He takes pride in providing a customized approach to care to ensure the best possible outcome. Dr. Robey is consistently recognized as a top doctor in the region by Bethesda Magazine and Washingtonian. Selected Publications “Relationship between tumor necrosis factor, eicosanoids and platelet activating factor as mediators of endotoxin-induced shock in mice.” Adam K. Myers, James W. Robey.British Journal of Pharmacology. (1990) 99, 499-502. “Ruptured, infected popliteal artery aneurysm, a case report.” James W. Robey, et al. Vascular Surgery. 1998. Dr. Robey is rated as an Advanced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Hernia, Femoral Hernia, Retroperitoneal Inflammation, Colostomy, and Hernia Surgery.

Dr. Brian G. Johnson is the chief of interventional radiology at Sibley Memorial Hospital. Dr. Johnson practices out of Sibley Memorial Hospital in Washington, D.C., Suburban Hospital in Bethesda, MD and the Johns Hopkins Hospital in Baltimore, MD. Dr. Johnson graduated summa cum laude from University of Minnesota prior to earning his medical degree from Johns Hopkins University School of Medicine. He completed a residency in physical medicine and rehabilitation at Sinai Hospital of Baltimore, as well as a residency in diagnostic radiology at the University of Maryland Medical Center. Dr. Johnson also completed an interventional radiology fellowship at Johns Hopkins University. Dr. Johnson has been repeatedly named a Top Doctor by Washingtonian Magazine, as well as a Top MD by Consumers' Checkbook Magazine. He is a member of the American College of Radiology and the Society of Interventional Radiology. Videos Brian Johnson, M.D.Interventional Radiology Selected Publications Neuromodulatory effect of the atrial natriuretic factor clearance receptor binding peptide, cANF(4-23)-NH2 in the rabbit isolated vas deferentia, Johnson BG, Trachte GJ, Drewett JG, J Pharm & Exp Ther - 1/1/1991 Percutaneous Management of Renal and Renal-Pancreas Transplant Recipients Using CT Fluoroscopy: A Two Year Experience. Krebs TL, Johnson BG, Daly BD, Wong-You-Chong JJ, Bartlett ST, Radiological Society of North America Meeting, Chicago, IL - 1/29/1998 The hexagonal cell nitinol intravascular stent: a comparison of the effects of varying the stent wire gauge on the aorta and inferior vena cava in the swine animal model. Kuo J, Johnson BG, Venbrux AC, Olson JL, Samphilipo MA, Magee CA, Kobelja MA, Anderson JH, Osterman FA, American Roentgen Ray Society Annual Meeting, New Orleans, LA - 1/24/1994 The role of anticoagulation in the setting of a tethered vena cava filter in the swine animal model. Johnson BG, Reichle RL, Venbrux AC, Samphilipo MA, Magee CA, Anderson JH, Osterman FA, Society for Cardiovascular and Interventional Radiology Annual Meeting, Fort Lauderdale, FL - 1/1/1995. Dr. Johnson is rated as an Experienced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Pancreatic Cancer, Familial Pancreatic Cancer, Bile Duct Obstruction, Vertebroplasty, and Bone Graft.

Dr. Kronthal joins the Johns Hopkins Community Radiology division from Drs. Groover, Christie and Merritt (GCM), where he has practiced at both Sibley and Suburban Hospitals for more than eleven years. He received his Bachelor of Arts at Haverford College in 1983 and medical degree at the University of Virginia in 1987. Dr. Kronthal performed both his radiology residency and Body Imaging fellowship at Johns Hopkins Hospital from 1998 through 1993. Following his fellowship, he spent twelve years with WBA Imaging, during which time he served as Chairman of the Department of Imaging at Prince George’s Hospital Center. Dr. Kronthal was with GCM from 2005 – 2017 and is the incoming Chairman of Radiology at Sibley Hospital. He is a past president of the District of Columbia Metropolitan Radiological Society. He was awarded fellowship in the American College of Radiology in 2005. Dr. Kronthal is rated as an Experienced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Muscle Invasive Bladder Cancer, Pleurisy, Pleural Effusion, and ALK-Positive Non-Small Cell Lung Cancer.

Dr. Bhagat is an interventional radiologist serving as the director of Vascular and Interventional Radiology of the National Capital Region. His primary areas of clinical expertise are interventional oncology (chemoembolization, radioembolization, and ablation), women's interventions, and vascular interventions (venous and arterial). Dr. Bhagat sees patients at both Suburban Hospital and Sibley Memorial Hospital. His research interests include interventional oncology, especially device development and software assistance for complex procedures. Dr. Bhagat successfully completed his Vascular and Interventional Radiology fellowship at the University of California, San Francisco in 2009. He joined the staff as an Assistant Professor of Radiology and Surgery at the Johns Hopkins University School of Medicine. While there, he authored more than 5 book chapters and 20 peer-reviewed manuscripts as well as giving many lectures at national and international meetings. In his second year at Johns Hopkins, he received a NIH R01 grant. Videos Nikhil Bhagat, M.D. Dr. Bhagat is rated as an Experienced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Ascites, Familial Pancreatic Cancer, Small Cell Lung Cancer (SCLC), Liver Embolization, and Gastrostomy.

Dr. David Lee is a radiologist who specializes in diagnostic radiology with expertise in abdominal imaging. He received his Medical degree from New York Medical College and completed a pediatric internship at Montefiore Medical Center, followed by a radiology residency at Cooper Hospital University Medical Center. Dr. Lee is fellowship-trained in cross-sectional body imaging from the Johns Hopkins University School of Medicine. He is currently an Instructor at The Johns Hopkins Hospital and looks forward to joining the Community Radiology Division. Dr. Lee is rated as an Experienced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Fecal Impaction, Collapsed Lung, Pleurisy, and Pleural Effusion.

Dr. Abhishek Srinivas received his medical degree from the Johns Hopkins School of Medicine in 2006. He completed his diagnostic radiology residency at the Montefiore Medical Center of the Albert Einstein College of Medicine in New York in 2011. This was followed by a fellowship in Vascular and Interventional Radiology at the Johns Hopkins University School of Medicine in 2012. Prior to joining Johns Hopkins as faculty, Dr. Srinivas established an interventional oncology practice serving much of central New Jersey, and a local hub for patients affiliated with Hahnemann University Hospital’s liver transplant program in Philadelphia. During this time, Dr. Srinivas was also part of the neuroradiology team for the hospital’s stroke center. His primary areas of expertise include interventional oncology (liver, kidney and bone cancers), vascular disease (deep vein thrombosis, pulmonary embolism, aneurysm treatment), uterine fibroid embolization, spine interventions, and advanced biliary interventions. Other interests include novel device evaluation and development. Videos Abhishek Srinivas, M.D. Selected Publications Chang SW, Srinivas A, Murphy KP. Chapter 5: Endovascular Management of a Patient After SAH. Bhardwaj A, Alkayed NJ, Kirsch JR, et al. Acute Stroke: Bench to Bedside. Chapter 5, 53 – 61. New York: Marcel Dekker. Copyright 2007, informa Healthcare USA inc. Farinhas, J, Srinivas A, Gulko E, Bello J. Chapter 4: Imaging of the Spine and Spinal Cord. Kirshblum S, Campagnolo D, DeLisa JA, Spinal Cord Medicine 2nd Edition. Lippincott, Williams, & Wilkins (Copyright 2011) Gailloud P, Srinivas A, Chang SW, Murphy KP. Morgan RH. Percutaneous Vertebroplasty in a Sitting Patient. Journal of Vascular and Interventional Radiology. 2005 Nov; 16(11):1558-9 Mahadevia AA, Weiland D, Kvamme P, Murphy KP, Srinivas A, Wyse G. Polymethylmethacrylate contact dermatitis after vertebroplasty. Journal of Vascular and Interventional Radiology 2007 Apr;18(4):585 Srinivas A, Chang SW, Gailloud P. Chapter 33: Diagnosis and Treatment of Cerebral Arteriovenous Malformations. Bhardwaj A, Alkayed NJ, Kirsch JR, et al. Acute Stroke: Bench to Bedside. Chapter 33, 397 – 404. New York: Marcel Dekker. Copyright 2007, informa Healthcare USA inc. Dr. Srinivas is rated as an Experienced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Bile Duct Obstruction, Ascites, Jaundice, Liver Embolization, and Bone Graft.

Dr. Syed joins the Community Radiology Division from Eastern Radiologists in Greenville, NC where he also served as an Affiliate Associate Professor of Radiology at the Brody School of Medicine at East Carolina University. He received his Medical degree from Drexel University College of Medicine. Dr. Syed completed his radiology residency at Tufts Medical Center, followed by a Cross-sectional Body Imaging fellowship at The Johns Hopkins Hospital. Dr. Syed also has a M.S. in Pharmacology and Experimental Therapeutics from the University of Maryland School of Medicine. Dr. Syed is a radiologist with subspecialty expertise in gastrointestinal and genitourinary imaging. Dr. Syed is rated as an Experienced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Pleural Effusion, Pleurisy, Collapsed Lung, and Angiomyoma.

Jerome Byam is an assistant professor of surgery at Johns Hopkins School of Medicine. Dr. Byam is an acute care surgeon with a robust general surgery and trauma surgery practice based at Suburban Hospital in Bethesda, MD. He has experience treating both routine and complex surgical patients using a variety of techniques including performing minimally invasive procedures using robotics and laparoscopy. After earning his medical degree from Meharry Medical College in Nashville, TN, Dr. Byam completed a surgical residency at the University of Louisville in Louisville, KY. He underwent further subspecialty training at the University of Chicago, completing a fellowship in solid organ Abdominal Transplant surgery. Dr. Byam worked as an acute care general surgeon in Washington DC before joining the staff at Johns Hopkins. Dr. Byam is a fellow in the American College of Surgeons. He remains active in his local community, is an avid triathlete, and enjoys spending time with his wife and daughter. Selected Publications Barnett RE, Keskey RC, Linsky PL, Byam J, Mathis TJ, Cheadle WG. Tension-free Open Mesh Cooper's Ligament Repair for Femoral Hernia. Am Surg. 2013 Sep;79(9):952-3. Byam J, Renz J, Millis JM. Liver transplantation for hepatocellular carcinoma. Hepatobiliary Surg Nutr 2013;2(1):22-30. Byam Jerome, Boone P, Azzam RK, Millis JM. Absence of early graft loss from hepatic artery thrombosis in pediatric liver transplantation with use of implantation Doppler probe. Journal International Pediatric Transplantation Association. Presented at IPTA Meeting July 2013. Jones, Christopher M, Byam JA, Iannitti DA, Marvin, MR. (2014) Hepatobiliary Ultrasound. In Schrope (Ed.), Surgical and Interventional Ultrasound. (pp. 73-86) New York, NY: McGraw-Hill Education. Dr. Byam is rated as an Experienced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Hernia, Gallbladder Disease, Umbilical Hernia, Gastrostomy, and Hernia Surgery.

Martin Paul is a General Surgeon in Washington, Washington, D.c.. Dr. Paul is rated as an Advanced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Hernia, Femoral Hernia, Cholecystitis, Hernia Surgery, and Ureteral Reconstruction.

Andrew Akman, MD, MBA a native of Washington, DC, currently practices at Suburban Hospital, Sibley Hospital, and Johns Hopkins Hospital. Dr. Akman performs a variety of minimally invasive procedures. He has specific interest in complex IVC filter removals, interventional oncology, pulmonary embolism, and prostate artery embolization. Dr. Akman is an expert in complex IVC filter retrieval and IVC filter related complications. In addition to standard IVC filter retrievals, he removes devices that are severely tilted, embedded, or fractured, as well as those designated as permanent devices. He serves as an adviser to other physicians on complex techniques including laser sheath and forceps assisted retrieval. Within interventional oncology, Dr. Akman performs thermal ablation of lung, liver, and kidney tumors. He performs chemoembolization and radioembolization (Yttrium-90) on primary liver cancer and metastatic liver disease. Dr. Akman also performs prostate artery embolization, an emerging minimally invasive technique for treating urinary symptoms associated with prostate enlargement. Dr. Akman prides himself on building strong relationships with his patients and practicing patient-centered medicine. Videos Andrew Akman, M.D., Interventional Radiologist Recent News Articles and Media Coverage Honoring a Life By Helping Others, Johns Hopkins Medicine, (July 20, 2022). Dr. Akman is rated as an Experienced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Ascites, Ureterocele, Familial Pancreatic Cancer, Gastrostomy, and Liver Embolization.

Dr. Katherine Lamond is the Medical Director of the Johns Hopkins Center for Bariatrics Surgery at Sibley Memorial Hospital and Assistant Professor of Surgery for Johns Hopkins School of Medicine. She specializes in laparoscopic bariatric surgery, and performs the Roux-en-Y Gastric Bypass, Sleeve Gastrectomy and Adjustable Gastric Banding at Sibley. She is also a surgeon with Johns Hopkins Surgery at Sibley, where she practices general surgery and advanced laparoscopic surgery. Dr. Lamond grew up in Maryland and attended Dartmouth College for her undergraduate education, before moving back to the area to attend Georgetown University School of Medicine. Her internship and residency in General Surgery were completed at the University of Virginia in Charlottesville. She then completed a fellowship at Johns Hopkins Hospital in Minimally Invasive and Bariatric Surgery. More recently, Dr. Lamond served as Assistant Professor of Surgery at the University of Maryland School of Medicine from 2012-2015, prior to transitioning her practice to Sibley Memorial Hospital. She is a Fellow of the American College of Surgeons and is active in both the Society of American Gastrointestinal and Endoscopic Surgeons and the American Society for Metabolic and Bariatric Surgery. Videos Meet Katherine Lamond, M.D., Minimally Invasive Surgeon Surgical Weight Loss Options 101 GERD and Bariatric Surgery FAQ. Dr. Lamond is rated as an Experienced provider by MediFind in the treatment of Retroperitoneal Inflammation. Her top areas of expertise are Hernia, Ogilvie Syndrome, Obesity in Children, Sleeve Gastrectomy, and Gastrectomy.

Dr. Jones is a radiologist and currently serves as the Chief of Ultrasound at Sibley Memorial Hospital. He received his B.S. from Stanford University and Medical degree from the University of Wisconsin-Madison. He completed a diagnostic residency at the National Naval Medical Center, followed by a Cross-sectional Imaging fellowship at Georgetown University Hospital. Prior to joining Johns Hopkins, Dr. Jones was a staff radiologist at Suburban and Sibley Memorial Hospitals from 2004-2016. He serves as vice chairman of the Sibley Memorial Hospital Department of Radiology. Dr. Jones has subspecialty expertise in abdominal CT, MRI, ultrasound and image-guided biopsies. Dr. Jones is rated as an Experienced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Collapsed Lung, Fecal Impaction, Pleurisy, and Pleural Effusion.

Dr. Brett Parker is a general surgeon and fellowship-trained minimally invasive foregut and bariatric surgeon. He is an Assistant Professor of Surgery at Johns Hopkins and also the Program Director for the Johns Hopkins Advanced GI and Minimally Invasive Surgery Fellowship Program. Dr. Parker is an expert in minimally invasive surgical techniques including advanced laparoscopy and robotic surgery, as well as therapeutic flexible endoscopy. He is interested in promoting the evolving indications for surgical repair of hiatal hernias, as well as adjunct procedures surgeons can use to reduce recurrence rates. He offers a wide range of interventions for GERD, including innovative endoscopic therapies, and promotes early surgical referral to discuss and tailor therapy to individual patient circumstances. Dr. Parker also has a robust abdominal wall reconstruction and weight loss surgery practice. He is widely published on the surgical outcomes of foregut surgery, emerging technologies, and innovation, as well as surgical simulation and skills transfer. Dr. Parker has consistently been selected as a Washingtonian Magazine Top Doctor in 2023, 2024, and 2025. As a member of the Johns Hopkins Division of Minimally Invasive Surgery in the Greater Washington Area, Dr. Parker is dedicated to the best, individualized, patient outcomes. Learn more about Dr. Parker and his partners within the Johns Hopkins Division of Minimally Invasive Surgery, the Johns Hopkins Heartburn Center and the Johns Hopkins Motility and Neurogastroenterology Center. Dr. Parker is rated as an Experienced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Hiatal Hernia, Hernia, Congenital Diaphragmatic Hernia, Endoscopy, and Gallbladder Removal.

George Conrad is a General Surgeon in Silver Spring, Maryland. Dr. Conrad is rated as an Advanced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Cellulitis, Ogilvie Syndrome, Gallstones, Hernia Surgery, and Small Bowel Resection. Dr. Conrad is currently accepting new patients.

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 Retroperitoneal Inflammation. His top areas of expertise are Pleural Effusion, Pleurisy, Ascites, Vertebroplasty, and Bone Graft.

Preetinder Sandhu is a primary care provider, practicing in Internal Medicine in Silver Spring, Maryland. Dr. Sandhu is rated as an Advanced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Cellulitis, Nephrosclerosis, Sepsis, Gastrostomy, and Endoscopy. Dr. Sandhu is currently accepting new patients.

Jeffrey Muench is a General Surgeon in Rockville, Maryland. Dr. Muench is rated as an Advanced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Retroperitoneal Inflammation, Gastrointestinal Perforation, Secondary Peritonitis, Gallbladder Removal, and Hernia Surgery.

Bradley Bennett is a Colorectal Surgeon in Rockville, Maryland. Dr. Bennett is rated as an Advanced provider by MediFind in the treatment of Retroperitoneal Inflammation. His top areas of expertise are Rectal Prolapse, Hemorrhoids, Encopresis, Colostomy, and Hernia Surgery.