Experience, Education & History


Medstar - Union Memorial Hospital
Baltimore, MD
Fellowship in Foot Ankle Fellowship | July 2017

Lenox Hill Hospital
New York, NY
Orthopedic Surgery Residency PGY-1 to PGY-5 | May 2016

Mount Sinai School of Medicine
New York, NY
Medical Doctor Degree | May 2011

Johns Hopkins University
Baltimore, MD
B.S. in Biomedical Engineering
B.S. in Latin American Studies
May 2005

Greengates School
Mexico City, Mexico
C.I.B. | May 2001

Magna Cum Laude Graduate
Dean’s List 1993-1994


2007 Irwin Gelernt, MD Scholar
Merit-based scholarship based on demonstrated dedication to leadership, advocacy and service to the community.

2004 Fall Provost's Undergraduate Research Award
Proposal: "The effect of Erythropoeitin on the release of apoptosis-inducing mitochondrial Cytochrome c in heart failure in pigs"
Faculty Advisor: Lili Barouch M.D.


Poster Presentation ISHA 2014 - Hip Capsular Repair After Hip Arthroscopy - A Cadaveric Study Demonstrating Arthro-scopic Capsulotomy And It's Relation To The Anterior Capsular Ligaments
Guillermo Duarte MD, Brian L. Walters, MD, Aleksey Lazarev, MD, Srino Bharam, MD
Lenox Hill Hospital, Department of Orthopedic Surgery

Tension Band Plating for Bunion Correction Surgery
Guillermo Duarte, MD, Adam Fineman PA, Stuart Katchis, MD, Lon Weiner MD
Lenox Hill Hospital, Department of Orthopedic Surgery

The pattern of compensatory trait interactions defining variation in skeletal function among individuals is recapitulated within a single bone
G. Felipe Duarte, N. Remi Gendron, Philip Nasser, Richard Ghillani, Rachel K. Evans, Charles Negus, Karl J. Jepsen

Building a weak skeleton relative to body size during growth increases fracture risk in adults
K. J. Jepsen, G. Felipe Duarte, Amanda Antczak, Yael Arbel, Amir Hadid, Rachel Evans, Charles Negus, Dani Moran

Functional Interactions Between Cortical and Trabecular Traits During Growth of the Vertebral Body
Jain, K; Nasser, P; Williams, V; Duarte G F; Tommasini, S M; Jepsen, K J

Biological, Constraints Lead to Deficit in Bone Mass for Slender Bones
Siddharth Bhola, Julia Chen, Joseph Fusco, G. Felipe Duarte, Richard Ghillani, Karl J. Jepsen
Leni & Peter W. May Department of Orthopaedics; Mount Sinai School of Medicine, New York, NY USA

Short Term Treatment With Anastrozole Does Not Affect Bone Strength In Pubertal Boys With Short Stature
Sofia Shapiro, Julia Chen, Oksana Lekarevl, Joseph Fusco, G. Felipe Duarte, Elizabeth J. Wallach, Karl Jepsen, and Robert Rapaport

Work Experience

Central Orthopedic Group
Plainview, NY
September 2017 - Present


Lenox Hill Hospital
July 2009 - June 2010

Hip Capsular Repair After Hip Arthroscopy - Cadaveric study
Cadaveric Study with Dr. Srino Bharam exploring the placement at arthroscopic portals in relation to capsular anatomy; specifically the Iliofemoral ligament.

Tension Band Plating for Bunion Correction Surgery
Radiographic studies with Dr. Stuart Katchis and Dr. Lon Weiner on the use of tension band plating for the correction of moderate and severe bunion deformities.

Mount Sinai School of Medicine Department of Orthopedics
2011 - Present

Functional interactions in Human Tibia
Project with Karl J. Jepsen PhD exploring the interactions between tibial traits of morphology and tissue quality along the tibial length and across individuals, as well as the effectiveness of the co-variation among these traits to generate a functional structure.

Comparative growth analysis of children with short stature untreated, treated with Anastrozole, Growth Hormone, and Anastrozole and Growth Hormone
Project with Karl J. Jepsen PhD exploring how these medications affect growth patterns in the 2nd and 3rd metacarpals of the mentioned groups in comparison to non-treatment, and control subjects found in the Bolton Brush hand radiograph collection.

Effect of Extra-operative Factors in SSEP and MEP monitored Lumbar Spine surgery outcomes.
Retrospective study with Andrew Hecht MD exploring factors that contribute to intra-operative changes in Somatosensory-evoked potentials (SSEP's) and Motor-Evoked Potentials (MEP's) during lumbar spine surgery and correlate these with post-operative neurological deficits.

Thoracic and Lumbar Level Identification during Posterior Spine Surgery Survey
Retrospective study with Andrew Hecht MD to uncover what method for level identification and marking during thoracic and lumbar spine surgery is most common among surgeons, and to attempt to elucidate which of these methods most often leads to wrong-level identification and marking.

Johns Hopkins University Department of Material Science and Engineering
September 2004 - May 2005

Research under James Spicer Phd. Involved in a project to uncover the effect that laser photodisruption has on collagen structures.

Johns Hopkins School of Medicine Department of Cardiology
January 2004 - March 2005

Research under Joshua M hare, MD and Lili A Barouch MD; studying the role of nitric oxide and oxidative stress in cardiovascular regulation, the aging of the cardiovascular system and congestive heart failure pathophysiology and therapy.

Johns Hopkins University Department of Material Science and Engineering
June 2003 - August 2003

Research under Kalina Hristova Phd investigating ways of artificially modeling and building soft structures such as the cell membrane in order to study diseases caused by cell membrane malfunction.


Variation in childhood skeletal robustness is an important determinant of cortical area in young adults
S Bhola, J Chen, J Fusco, GF Duarte, N Andarawis-Puria, R Ghillani KJ. Jepsen, Bone 2011, Volume 49, Issue 4 Pages 799-809

Biological constraints that limit compensation of a common skeletal trait variant lead to inequivalence of tibial function among healthy young adults
KJ Jepsen, A Centi, GF Duarte, K Galloway, H Goldman, N Hampson, JM Lappe, DM Cullen, J Greeves, R Izard, BC Nindl, WJ Kraemer, CH Negus, RK Evans, JBMR Volume 26, Issue 12, pages 2872-2885, December 2011