Meet the current trainees in the vascular surgery program at Saint Louis University's School of Medicine.

Amin Mohamed Ahmed, M.D.
PGY-7 Fellow
Hometown: Khartoum, Sudan
Undergrad: University of Khartoum Faculty of Medicine - Sudan
Medical School: University of Khartoum Faculty of Medicine - Sudan
Bio: Dr. Mohamed Ahmed completed his General Surgery Residency at University of Toledo,
Ohio. Following that, he completed a Surgical Critical Care Fellowship at the Mayo
Clinic. He pursued vascular surgery because it covers a wide range of anatomy, and
treatment and procedures are tailored to each patient. He enjoys playing basketball
and soccer as well as traveling and reading biographies.

Candace Wulff, D.O.
PGY-6 Fellow
Hometown: Columbia, Missouri
Undergrad: University of South Florida
Medical School: Lake Erie College of Osteopathic Medicine – Bradenton, Florida
Bio: Dr. Wulff completed her General Surgery Residency at the University of South
Carolina. This is where she developed her passion for vascular surgery noting that
she loved the wide breadth and complexity of procedures as well as the long-lasting
patient relationships. She has two pets; a grumpy old Persian cat named Louie and
an Italian Mastiff named Duke. Her hobbies outside of medicine include walks with
Duke, exploring coffee shops, watching the sun rise/set, and cooking.

Justin D’Addario, M.D.
PGY-5 / Chief
Hometown: Bronxville, New York
Undergraduate: University at Albany (2011)
Medical School: Stony Brook University School of Medicine (2018)
Bio: Dr. Addario enjoys the finesse of manipulating the suture and adventitia and
trying to anticipate the surgeon’s next move. He feels that Vascular Surgery offers
everything he wants from medicine. His interests include mountain biking, kayaking,
hiking, mountaineering, camping, reading, and spending time with his wife and daughter.

Timothy Chilton, D.O.
PGY-4
Hometown: Centennial, Colorado
Undergraduate: Creighton University (2014)
Medical School: Rocky Vista University College of Osteopathic Medicine
Bio: Dr. Chilton’s first surgical operation was performed in a makeshift operating
room in South America. His exposure to vascular procedures during medical school impacted
his decision to pursue surgery. He is an avid musician and spends the majority of
his free time writing and recording music. Most of his effort is focused on guitar,
drums, bass, and piano. He plays in a weekly soccer league, snowboards, and coaches
middle school wrestling.

Charles Marquardt, M.D.
PGY-3
Hometown: London
Undergrad: Duke University
Medical School: Loyola University Chicago Stritch School of Medicine
Bio: During medical school, he produced podcasts on Death and Consciousness and Therapy
Dogs. “Vascular surgery provides opportunities to be creative, adaptable, and innovative
both in and out of the OR in a way that I have not experienced in other fields.” He
enjoys fencing, writing fiction and music, clay pigeon shooting, fly fishing, racquet
sports, and metaphysics/philosophy.

Mark Awad, M.D.
PGY-2
Hometown: Staten Island, New York
Undergrad: Fordham University – New York
Medical School: St. George’s University School of Medicine
Bio: Dr. Awad knew he wanted to be a vascular surgeon while in undergrad when a family
crisis occurred. His experiences in medical school and at the Vascular Institute of
New York confirmed his passion for vascular surgery. During his downtime, he enjoys
reading non-fiction, weightlifting, cooking middle eastern cuisine, and flying remote-controlled
drones.

Pavitra Ravishankar, M.D.
PGY-1
Hometown: Fremont, California
Undergrad: University of California - Davis
Medical School: Case Western Reserve University School of Medicine
Bio: Dr. Ravishankar’s research interest includes endovascular intervention and effects
of anti-TNF-alpha agents on post-op morbidity/mortality. She also enjoys the day-to-day
diversity of vascular cases. Her hobbies include cooking international dishes, savory
baking, knitting, and running.