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Meet Our Residents

Department of Urology Residents 2022-2023




Matt Chabot, MD

Chief Resident

Medical School:  UMass Chan Medical School, Worcester, MA
Undergraduate:  College of the Holy Cross, Worcester, MA
Matt was born and raised in Massachusetts and went to College of the Holy Cross for undergrad.  After spending a few years working in a research lab in Boston, he returned to central Mass for medical school at UMass Chan.  Matt decided to stay at UMass for residency after experiencing the culture and camaraderie of the Urology Department firsthand while in med school.  In his free time, he enjoys playing golf, traveling, and walking his basset hound, Bruce.  Matt is an avid fan of all New England sports teams and loves going to Patriots and Bruins games. 



Greg Kunkel, MD

Medical School:  Drexel University, College of Medicine, Philadelphia, PA
Undergraduate:  Drexel University, Philadelphia, PA
Greg is a native from Allentown, Pennsylvania.  He went to Drexel University for college and medical school.  Greg loves pizza and is always looking for the best pizza place in town.  Greg loves to hike, row, and play soccer.  He loves the Christmas spirit and can often be found singing Christmas music in July.  Greg is a father to a beautiful baby girl which he loves spending time with.  


Chad Heflick, MD

Medical School:  Washington State University, Elson S Floyd College of Medicine, Spokane, WA
Undergraduate:  Washington State University, Spokane, WA
Chad is from Yakima, Washington, the largest producing hops county in the country.  Chad attended Washington State University for undergrad and medical school and is a huge WSU cougar fan.  He has recently gotten into food and trying out new restaurants, he has developed a keen sense for writing Yelp reviews.  In his free time, he enjoys exploring New England and drinking craft beer - his current favorite is Elysian Pumpkin Beer. 



Cynthia Tan, MD

Medical School: University of Connecticut Medical School, Farmington, CT
Undergraduate:  Dartmouth College, Hanover, NH
Cynthia is from Old Lyme, Connecticut, was born in China, and grew up in Canada.  Cynthia went to Dartmouth for college and UConn for Medical School.  She enjoys hiking, sleeping, and watching reality TV.  Cynthia loves all types of fruits, snacks, and a good coffee in the morning.  She is an avid traveler that enjoys a good adventure with her friends. 



Daniela Diaz Rubayo, MD


PGY 2 

Medical School:  University of Puerto Rico Medical School, San Juan, Puerto Rico

Undergraduate:  University of Puerto Rico

Daniela was born and raised in Puerto Rico.  Daniela moved to Massachusetts for residency, and she loves it here - summer being her favorite season.  She enjoys traveling and getting to know different countries and cultures but would not trade going home to the beach for anything in the world.  She loves exercising and will always say yes to a coffee or a good glass of wine. 




Tracy Cherian, MD



Medical School:  University of Tennessee Health Science Center College of Medicine, Memphis, TN

Undergraduate:  Washington University in St. Louis, St. Louis, MO

Tracy is from Nashville, TN.  In her free time, she likes trying new restaurants, going on hikes, and traveling with her friends.  She prefers an afternoon tea and sleep to a morning coffee, but she's open to residency changing her.  




Orleiquis Guerra, MD



Medical School:  San Juan Bautista School of Medicine, Puerto Rico

Undergraduate:  Florida State University, Tallahassee, FL

Orly was born in Cuba, and raised in Miami FL.  He was a prior Flight Surgeon in the Navy before joining our team.  Orly's hobbies include swimming, chess, and DIY home projects.  His favorite food is sushi, loves a good cup of coffee and occasionally a glass of bourbon.  In his free time, he enjoys spending time with his family and playing fetch with his dog, Athena. 

Newly Matched Residents!!

Cairo Stanislaus 

Hackensack Meridian

Elisa Rocha

UMass Chan Medical School




Christine Van Horn, MD, MS

Fellowship in Endourology and Laparoscopic/Robotic Surgery - Loyola Medicine


Glenn Dunne, MD

Private Practice - Stormont Vail Health, Topeka, KS


Rachel Engelberg, MD

Fellowship in Sexual Health, Prosthetics, and GU Reconstruction - Urology Centers of Alabama


Scott Greenberg, MD

SUO Fellowship at UC San Francisco


TJ Calvert, MD

Private Practice - Adventist Health, Bakersfield 

AUA Advocacy Summit 24

Representing UMass at the AUA Advocacy Summit 2024

Cynthia Tan PGY 2, Daniela Diaz Rubayo PGY2

Jen Yates PD, Jennifer Fantasia, MD


Greg Kunkel PGY 4 and Chad Heflick PGY 3

NARUS 2024

NEAUA Resident Bowl

NEAUA 2023 Resident Bowl Winner!  Greg Kunkel, PGY 4

Urology Residents 2022-2023

Urology Residents 2022-2023 with Visiting Professor Dr. Dan Marchalik

Annual Urology Summit

Dr. Yates and Dr. Van Horn (PGY4) - AUA  Advocacy Summit 2022

Residents 21-22

Urology Residents 2021-2022

Urology Residents 2019-2020

Urology Residents 2019-2020