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Residency Programs


Current Residents

Joshua Ahier, MD

Joshua Ahier, MD PGY-1

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.
Michael Caparelli

Michael Caparelli, MD PGY-1

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.
Mohammad Gerdivisheh, MD

Mohammad Gerdvisheh, MD PGY-2

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.
Courtney Hanak

Courtney Hanak, MD PGY-1

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.
Elizabeth Hartman, MD

Elizabeth Hartman, MD PGY-3

I am a native of Colorado Springs, CO. I attended undergraduate school at Cedarville University and graduated from the University of Cincinnati College of Medicine. I was excited to join The Jewish Hospital – Mercy Health Surgical Residency in 2012. Currently, I am interested in a career in general surgery. In 2005, I spent the year in Shell, Ecuador working in a community hospital. I would love to incorporate international medical aide in my future surgical practice. I am currently involved in a research project evaluating how surgical techniques of pericardial closure affects the post-op complication of atrial fibrillation.
Anna Krapivina

Anna Krapivina, MD PGY-1

I was born in Russia, and moved to United States when I was fifteen. 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.
Sepehr Lalezari

Sepehr Lalezari, MD PGY-4

I was born in Tehran, Iran and moved to America when I was four years old. I grew up in Los Angeles, CA, and attained a degree in neuroscience from UCLA. I am very interested in education and thus took a year off to teach high school biology for the Los Angeles Public School System before attending medical school. Although I plan to seek fellowship training in minimally invasive surgery, I hope to always be involved in residency training.
Louis Matherne, MD

Louis Matherne, MD PGY-2

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.
Andrew Pavlina

Andrew Pavlina, MD PGY-1

I grew up in Dayton, Ohio then attended the University of North Carolina at Chapel Hill where I studied Biomedical Engineering. After college, I obtained my medical degree from Indiana University School of Medicine before coming to Cincinnati for a surgical internship at The Jewish Hospital. Next year, I will be joining the University of Cincinnati Medical Center for residency training in Radiology.
Nathan Roberts

Nathan Roberts, MD PGY-4

I am a native of the Upper Peninsula of Michigan. I received my BA from the Franciscan University of Steubenville in Steubenville, Ohio. After a few years of working various jobs, I earned my MD from St. George University in Granada. Minimally invasive surgery is my greatest area of interest; however, I am open to all aspects of general surgery. Currently, I am working with some of my colleagues on various research projects.
Alex Shikhman, DO

Alex Shikhman, DO PGY-1

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.
Steven Weber, MD PGY-3

Steven Weber, MD PGY-3

I was born in rural eastern Washington State. I received my Bachelor’s degree in Environmental Health from the University of Washington in Seattle, after which I attended Drexel University College of Medicine in Philadelphia. While I currently plan on becoming a general surgeon upon graduation, however, I am leaving the possibility of fellowship training open. I have several areas of research interest and am currently in the planning stages of a project designed to improve pain control in CABG patients. I also have a case series published in the Journal of Vascular Surgery on early pseudoaneurysms after carotid endarterectomy.

Previous Chief Residents


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


Dasen Ritchey, MD
General Surgeon

Jonathan Ellichman, MD
Cardiothoracic Surgery Fellowship


Jennifer Daniels, MD
General Surgeon

Karen Lawrence, DO
Cardiothoracic Surgery Fellowship


Robert Bradley, MD
General Surgeon


Mark Shapiro, MD
Trauma/Critical Care Fellowship

Nick Dobrilovic, MD
Cardiovascular Thoracic Fellowship


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