Current Residents

Amber Duda, DO PGY-1

I was born and raised in Buffalo, New York. After graduating from Ithaca College with a Bachelor of Science in Athletic Training, I obtained my medical degree from Campbell University School of Osteopathic Medicine in North Carolina. My current professional interests include general surgery with the possibility of continuing on to fellowship. 

Ashlea McManus, MD PGY-1

I was born and raised in Port Alberni, BC, Canada.  I earned my Bachelors of Science from Simon Fraser University (Burnaby, BC) while competing for the varsity women's wrestling team as well as the Canadian and later British Olympic National team. Wrestling allowed me to pursue my athletic dreams but it was Ross University, in Dominica, that gave me the opportunity to pursue my academic dream of becoming an MD. My experience during my surgical rotations and a few excellent mentors during medical school really solidified my passion for the surgical profession. My current professional interests include general surgery and vascular surgery.

Brianne Runyan, MD  PGY-1

I was raised in Milwaukee, Wisconsin and attended the University of Wisconsin in Madison where I studied Microbiology. I then obtained my Master's in Public Health at the Medical College of Wisconsin. I continued on at St. George's University for medical school. While my main interest is in general surgery, I am also considering a fellowship in trauma or breast surgery.

Robert Wissner, DO PGY-1

I was born in Orlando, Florida and grew up in Cincinnati, Ohio. Received my Bachelor of Science in Athletic Training from the College of Mount St. Joseph, and my Doctor of Osteopathic medicine degree from Kansas City University. My interests include rehabilitation and musculoskeletal medicine, as well as traumatic brain and spinal cord injury.

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Slava Agafonoff, DO PGY-2

I was born in Odessa, Ukraine and moved to Los Angeles, CA where I received my Bachelor’s degree from University of California, Los Angeles (UCLA) in biomedical engineering. Afterwards, I attended medical school at West Virginia School of Osteopathic Medicine (WVSOM). Now, the next chapter of my life includes the training of my mind and hands in the field of surgery.

Courtney Hanak, MD PGY-2

I was born and raised in Parma, Ohio. I obtained my Bachelor's degree in Exercise Science from John Carroll University where I also was an athletic trainer for varsity athletics. It was at John Carroll that my passion for medicine and the intricacies of the human body grew. I furthered my medical education at Ross University School of Medicine in Portsmouth, Dominica. My current professional interests include trauma and vascular surgery.
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Michael Caparelli, MD PGY-3

I grew up in Westchester, New York, studied Biochemistry & Molecular Biology at Penn State University, Cancer Biology at the Mount Sinai School of Medicine Graduate School of Biological Sciences, and Medicine at St. George’s University School of Medicine in Grenada. What inspired me to be a Surgeon were the ability to intervene, and the continuity of patient care. I enjoy the academic pursuit of medicine. With a background in science and medicine I plan to be a leader in translational research and evidence-based practice. My current interests are colorectal surgery, and surgical oncology.
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Anna Krapivina, MD PGY-3

I was born in Russia, and moved to the United States when I was 15. After obtaining my undergraduate degree from University of Rochester in Biology I worked in clinical laboratory field for several years. I received my medical degree from Ross University School of Medicine in 2015. My current areas of interest are surgical critical care and reconstructive plastic surgery.
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Joshua Ahier, MD PGY-4

I grew up in a small town in Ontario, Canada. Before entering Saba University School of Medicine, I was mentored by a general surgeon in Angola which awakened a new passion for surgery as well as a resolve to be involved in international medical relief as part of my training and practice as a surgeon. In addition, I hope to always have the privilege of working in a teaching hospital since I thrive on the mutual sharing of knowledge.
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Alex Shikhman, DO PGY-4

I was born in Moldova, however, I grew up and spent most of my life in Milwaukee, WI. After graduating from the University of Wisconsin-Milwaukee with a degree is radiologic technology, I completed my medical degree at the Chicago College of Osteopathic Medicine. Joining the Jewish Hospital Surgical residency is very exciting and I look forward to developing my breadth of knowledge and skills with the help of my team. Although all aspects of surgery interest me I expect to pursue a fellowship in a yet to be chosen subspecialty.
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Mohammad Gerdvisheh, MD PGY-5

I graduated from Virginia Commonwealth University with a Bachelors of Science in Biology and minor in Chemistry. I attended Saba University where I obtained my medical degree. My current professional interests include critical care and transplant.
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Louis Matherne, MD PGY-5

I am originally from New Orleans, LA and graduated from South Alabama in Mobile for my Bachelor’s degree. After living abroad teaching English in Seoul, Korea for 3 years, I attended Ross University for medical school. I spent a year in Brooklyn, New York doing an internship in Internal Medicine. I then moved to Cincinnati to begin my training in General Surgery. I am interested in a career in General Surgery, possibly with an emphasis on robotic surgery.                                   

Previous Chief Residents


Elizabeth Hartman, MD
Private Practice

Steven Weber, MD
Private Practice


Sepehr Lalezari, MD
MIS Fellowship – Johns Hopkins

Nathan Roberts, MD
Transition to Practice – Chicago, IL


Matthew Musielak, MD
Private Practice

Amir Aryaie, MD
Fellowship – Minimal Invasive Surgery


Benjamin Stivers, MD
General Surgery


Hiral Patel, MD
General Surgery

Ranjodh Singh, MD
Colorectal Fellowship


Ryan Helmick, MD
Critical Care – Baylor
Transplant – Mayo

Farshad Farnejad, MD
Critical Care


Sofiane ElDjouzi, MD
Minimal Invasive Fellowship

Jeffrey Welshhans, MD
General Surgeon


Craig Larson, DO
Cardiothoracic Fellowship

Tobi Reidy, DO
Colorectal Surgeon Fellowship


Timothy Hackett, MD
General Surgeon

Brent Marsden, MD
Vascular Surgeon Fellowship


Rachel Shelton, MD
General Surgeon

Tommy Shelton, MD
General Surgeon


Steven Conkel, MD
General Surgeon


Cari Ogg, MD
General Surgeon

Amit Gogia, MD
General Surgeon