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Ryan A. Hoffman, MD

Medical School: Drexel University College of Medicine, Philadelphia, PA

Undergraduate: Muhlenberg College, Allentown, PA

Hometown: Bala Cynwyd, PA

Ryan attended Muhlenberg College where he was a member of the wrestling team and graduated with a major in Biology and minor in Religious Studies. He has spent time performing basic science, biomechanical, and clinical research in the orthopedic field, with continued focus in shoulder & elbow surgery. Ryan chose Einstein for the early operative experience, camaraderie amongst the residents and attendings, and the opportunity to be in Philadelphia WHEN the Eagles won the Super Bowl. He enjoys golf, food, Philly sports, and his bulldog Wallace. Ryan’s career interests include Shoulder & Elbow and Sports.

Qingwu Kong, MD

Medical School: Tufts University School of Medicine, Medford, MA

Undergraduate: Northwestern University, Evanston, IL

Hometown: Shenyang, China

When Qingwu isn’t scrubbed in, you can find him on the pitch wearing black and white. He has been refereeing soccer matches since high school. He has been known to hand out red cards in the hospital to unruly medical students. Qingwu is interested in pursuing a fellowship in Adult Reconstruction.

Robert K. Merrill, MD

Medical School: Icahn School of Medicine at Mount Sinai, New York, NY

Undergraduate: Georgetown University, Washington, DC

Hometown: New York City, NY

Rob spent 11 years growing up in Japan and Singapore. He went on to attend Georgetown University where he majored in Biology and was captain of the club boxing team. Rob did a research year in medical school where he focused on clinical and basic science research related to spine and has expanded his research interests to trauma and foot and ankle since starting residency. He chose Einstein for the small, close-knit feel, operative autonomy, and well-roundedness of the operative experience. He’s the proud owner of a Pitbull and loves burritos. Rob’s career interests include Spine, Trauma, and Foot & Ankle.


Lee A. Kripke, MD

Medical School: Temple University School of Medicine, Philadelphia, PA

Undergraduate: College of William and Mary, Williamsburg, VA

Hometown: Radnor, PA

Lee graduated from the College of William and Mary in beautiful Williamsburg, Virginia where he majored in Biology. It should be noted that he also aced a “Beginners Acting” class in college where his professor called him a young Marlon Brando. This has nothing to do with orthopedics but he is very proud of it. Lee came to Einstein because the operative experience and autonomy is unmatched compared to any other program in the country. His personal interests include working out and mini golf. Lee’s clinical interests include Spine and Sports.

Stephen A. Silva, MD

Medical School: Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA

Undergraduate: Drew University, Madison, NJ

Hometown: Warren, NJ

Stephen completed his undergraduate studies at Drew University where he majored in Biochemistry and Molecular Biology. He chose Einstein for its close-knit family, operative autonomy, and ability to produce consistently strong and well-rounded residents. Stephen enjoys working out, fixing stuff, and spending as many weekends at the beach as possible. His career interests include Adult Reconstruction and Sports.


John M. Ibrahim, MD

Medical School: University of California San Francisco School of Medicine, San Francisco, CA

Undergraduate: University of Pennsylvania, Philadelphia, PA

Hometown: Riverside, CA

John grew up in Southern California before moving to Philadelphia for college where he studied Neurobiology and Healthcare Management. He returned to California for medical school and pursued a research year between his 3rd and 4th years focused on spine and international orthopedic trauma where he spent time in Tanzania. He chose Einstein for its strong sense of community among the residents and attendings, early and high volume of operative experience, and strong legacy of success of Einstein alumni. He enjoys surfing, basketball, cooking, and photography.

Anthony S. Machi, MD

Medical School: West Virginia University School of Medicine, Morgantown, WV

Undergraduate: University of Delaware, Newark, DE

Hometown: Wexford, PA

Anthony was born and raised in Pittsburgh, PA where he learned the importance of good pizza and putting french fries on sandwiches. He went to the University of Delaware where he majored in Exercise Science with a concentration in Biomechanics and Motor Control and continued on to WVU for medical school where he also conducted research in Prosthetic Joint Biofilm Infections. He chose Einstein for the awesome group of residents, high operative volume with a community hospital feel, and well-established success in producing great Orthopaedic Surgeons. When he isn’t in the hospital interning, Anthony likes to snowboard, golf, and work out.


Jonathan Boyce

Medical School: Temple University School of Medicine, Philadelphia, PA

Undergraduate: University of Florida, Gainesville, FL

Hometown: Hollywood, FL

John grew up in the suburbs of South Florida and could be seen Tebowing at every Gators game while in college at the University of Florida. Like a migratory bird he flew north in the summer of 2016 to begin medical school in Philadelphia at Temple University. John enjoys snowboarding, golfing, and tennis. He also recently purchased a smoker to bring his BBQ game to the next level. John is a natural athlete and was destined for the world of Orthopedic Surgery. His current interests include trauma and adult reconstruction.

Chrissy M. Conroy

Medical School: Georgetown University School of Medicine, Washington DC

Undergraduate: Villanova University, Villanova, PA

Hometown: New Rochelle, NY

As a true New Yorker, Chrissy is an avid Yankees and Giants fan who frequently goes to the games with her family. She is excited to return to the Philadelphia area though, where she spent her undergraduate days as a biology major at Villanova University. Sports have always been integral to Chrissy as she grew up playing basketball, tennis and soccer. She continued her passion for basketball at Villanova, as a member of the Club Basketball team, and now enjoys running on the Schuylkill River. In the time between college and medical school, she worked as a research assistant at ONSF in Greenwich, CT, focusing on sports medicine. This experience solidified her goal to become an orthopedic surgeon. She is thrilled to be part of the excellent program at Einstein, with its strong reputation for developing capable orthopedic surgeons in a supportive environment.


Vivek Bilolikar

Medical School: Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA

Undergraduate: Tufts University, Medford, MA

Hometown: Boston, MA and Bonn, Germany

Vivek grew up in Portugal and Germany, where he fell in love with basketball and sports science. He earned his undergraduate degree from Tufts University and double majored in cognitive brain sciences and biology. But more importantly, he converted into a die-hard New England sports fan. He then moved to Philadelphia to attend medical school at Thomas Jefferson University and conducted orthopaedic research with the Rothman Orthopaedic Institute. He chose the Einstein orthopaedic residency for its tight-knit residents and collegiate learning environment. When he is not in the hospital, he enjoys golf, cooking, exploring the Philadelphia food scene, and long walks on the beach.

Clark Chen

Medical School: University of Miami Miller School of Medicine, Miami, FL

Undergraduate: University of California Los Angeles, Los Angeles, CA

Hometown: Cerritos, CA

Clark grew up in the suburbs of Southern California where he discovered the allure of warm beaches and taco trucks. He attended University of California Los Angeles where he majored in Physiological and Political Science. Clark did a research year in medical school where he focused on Implant Biofilms and Arthroplasty Epidemiologic studies. He chose Einstein for its strong sense of comradery among residents, high operative volume, and track record of developing top-notch Orthopaedic talent. Clark’s personal interests include cooking, basketball, working out, and development of aitmed.

Duncan Van Nest

Medical School: Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA

Undergraduate: University of Pennsylvania, Philadelphia, PA

Hometown: Weston, MA

Duncan earned his undergraduate degree from the University of Pennsylvania where he majored in the biological basis of behavior and minored in healthcare management. Prior to medical school, he worked in basic science research in the field of addiction medicine. However, in medical school, he realized that bones are much easier to fix than brains. He was drawn to Einstein for the diverse trauma pathology, high case volume, and the outstanding didactic curriculum. Outside the hospital, he enjoys playing golf, basketball and skiing.

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