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Meet the Clinical Team

Marc Itskowitz, MD, FACP

Marc Itskowitz, MD, FACP, is an Associate Professor of Medicine at Temple University School of Medicine. He is also Director of the Center for Perioperative Medicine for the Allegheny Health Network.

Dr. Itskowitz earned his Bachelor of Arts from Cornell University and received his medical degree from the Medical College of Pennsylvania where he was elected to the Alpha Omega Alpha honor medical society. He completed his residency and chief residency in internal medicine at Allegheny General Hospital. He practices internal medicine with Pittsburgh General Medicine Associates and his clinical interests include travel medicine, cardiovascular risk reduction, thromboembolic disease, and perioperative medicine. He has lectured frequently on these topics.

Dr. Itskowitz is a fellow of the American College of Physicians and a diplomate of the American Board of Internal Medicine. He is the author of numerous journal articles and serves on the editorial board of Emergency Medicine: Acute Medicine for the Primary Care Physician. He has served as the national course director for the ACP and has been the Director of Medical Grand Rounds at AGH since 2007.

Dr. Itskowitz has been recognized by Pittsburgh Magazine as one of the region’s best Internal Medicine physicians. He has also served as the Internal Medicine team physician for the Pittsburgh Pirates since 2003.

Lisa Guthrie, DO

Lisa Guthrie, DO, is a board-certified internal medicine physician offering comprehensive and compassionate primary medical care. Her clinical interests are preventive care, annual wellness exams, and management of chronic conditions. 

Dr. Guthrie earned her medical degree from the Philadelphia College of Osteopathic Medicine and performed her residency at St. Francis Medical Center in Pittsburgh.

Dr. Guthrie has been practicing medicine for more than 14 years as a staff physician and most recently as a primary care physician in Cranberry Township.

Scott Vargo, MD

Scott Vargo, MD, is an Associate Professor of Medicine at Temple University School of Medicine. He is also Director of the Center for Perioperative Medicine at the Allegheny Health Network.

Dr. Vargo earned his Bachelor of Science from the University of Pittsburgh and received his medical degree from Hahnemann University where he earned several scholarships for his clinical performance. He completed his residency and chief residency in internal medicine at Allegheny General Hospital. He practices Internal Medicine with Pittsburgh General Medicine Associates. His special interests include perioperative consultation, diabetes, heart failure and cardiac risk reduction as well as primary care, orthopaedics and sports medicine.

Dr. Vargo is a member of the American College of Physicians and a diplomat of the American Board of Internal Medicine. Dr. Vargo is very active in residency education and has received numerous teaching awards including the Claude R. Joyner Award for excellence in teaching.

Sonia Dhawan , MD

Sonia Dhawan, MD, completed her medical education in India from the Lady Hardinge Medical College, New Delhi. Thereafter, she completed her Internship and Residency training in Internal Medicine from the Western Pennsylvania Hospital in Pittsburgh, Pennsylvania.

Dr. Dhawan has been a practicing internist for the past fifteen years. Her clinical interests include preventive medicine, perioperative medicine, travel medicine and cardiovascular risk reduction.

Dr. Dhawan is actively involved in teaching medical students and internal medicine residents at

Allegheny General Hospital. She has been a diplomate of the American Board of Internal Medicine since 1999.