Cleveland Clinic
Penn Medicine
Massachusetts General Hospital
Georgetown University Medical Center
Harvard Medical School
Weill Cornell Medicine


Medical Director
Assistant Professor of Clinical Anesthesiology, Georgetown University School of Medicine

Dr. Tesfayohannes, popularly known as “Dr. Net”, is a board-certified anesthesiologist specializing in chronic pain management. He is licensed in Maryland and Washington, DC.  Dr. Net received his medical degree from the University of Wisconsin-Madison, completed his residency in anesthesiology at Hospital of the University of Pennsylvania, and completed his interventional pain management fellowship at the prestigious Cleveland Clinic Foundation in Cleveland, Ohio.

Dr. Net worked as an attending anesthesiologist and Pain management Physician at the Washington Hospital center in Washington, DC. and in 2006 was selected to become the Director of the Interventional Pain Management Center at Georgetown University Hospital, where he is currently an Assistant Professor of Pain Medicine.

Dr. Net is proud to serve his patients as Medical Director of Georgetown Pain Management and as Managing Partner of the Hanover Parkway Surgery Center. He is a member of the medical staff of Medstar Georgetown University Hospital.



Associate Medical Director
Assistant Professor of Clinical Anesthesiology, Georgetown University School of Medicine

Dr. Kiefer is a double board-certified physician specializing in Interventional Chronic Pain Medicine. He focuses on the clinical care of patients suffering with chronic pain through a balanced, multidisciplinary approach.  


He attended medical school at Weill Cornell Medical College of Cornell University and completed his residency training in Anesthesiology and Perioperative Care at Georgetown University Hospital. Following residency, he completed fellowship training in Chronic Pain Medicine at the world-reknown Massachusetts General Hospital, the largest teaching hospital of Harvard Medical School. He holds licenses in Maryland, Washington, DC, Virginia, and Massachusetts

He has expertise in acute and chronic pain evaluation and diagnosis, medication management, responsible opioid management, treatment of chronic pain patients with addiction, fluoroscopic- and ultrasound-guided interventional techniques (including vertebral augmentation) and advanced implantable therapies (spinal cord stimulators and intrathecal pumps).

He's contributed to 12 textbook chapters, 6 peer-reviewed journal articles, and 17 presentations at national and international medical conferences. He is the rotation director of the Chronic Pain Medicine Rotation for the Anesthesiology Residency Program at Georgetown University Hospital. Dr. Kiefer is a member of the medical staff of Medstar Georgetown University Hospital.