Critical Care Doctors

Dr. Christine Guenther

Christine Guenther

DVM, Diplomate, American College of Veterinary Emergency and Critical Care

Dr. Christine Guenther is originally from the Boston area.  She earned her Bachelor's degree from Bentley College and spent several years working as a Product Manager for a healthcare software company before deciding to pursue a career in veterinary medicine. Dr. Guenther received her Doctor of Veterinary Medicine degree from Tufts University in 2005. She completed a rotating small animal medicine and surgery internship at Wheat Ridge Animal Hospital in Denver, Colorado in 2006. Following her internship, Dr. Guenther spent three years as a resident in small animal emergency and critical care at Tufts University, completing her residency in 2009. Dr. Guenther completed the requirements for board-certification and became a Diplomate of the American College of Veterinary Emergency and Critical Care (ACVECC) in October, 2010. Her clinical interests include respiratory diseases, sepsis and disorders of coagulation.

Dr. Guenther enjoys running, skiing, yoga and crossfit with her husband Bill. In her spare time, she likes to hike, trail run and mountain bike.   She also keeps busy taking care of her 5 dogs, 3 cats and 5 chickens.

Dr. Amy Dickinson

Amy Dickinson

DVM, Diplomate, American College of Veterinary Emergency and Critical Care

Dr. Amy Dickinson moved from South Carolina to Boston, Massachusetts to pursue her undergraduate degree and then her Doctor of Veterinary Medicine degree at Tufts University. After earning her veterinary degree in 2006, Dr. Dickinson completed a small animal internship at the University of Pennsylvania. Following her internship, Dr. Dickinson returned to Tufts University for a three-year emergency and critical care residency. Dr. Dickinson achieved board-certification from the American College of Veterinary Emergency and Critical Care in 2010. Dr. Dickinson then moved to London, where she instructed veterinary school students as a staff clinician at the Royal Veterinary College. In Spring 2012, she moved back to the States and joined the Critical Care department at PVSEC. Dr. Dickinson's clinical interests include sepsis, ventilation therapy and coagulation disorders.
Outside of work, Dr. Dickinson enjoys running, swimming, biking, and fencing as well as hiking with her husband and her dog "Benjamin Franklin".

Dr. Shaina Mooshian

Shaina Mooshian


Shaina Mooshian, DVM, grew up in Harford County, Maryland. Dr. Mooshian received her BS in Biology from Lebanon Valley College in 2009 and her Doctor of Veterinary Medicine degree from Ross University in 2013.

Dr. Mooshian became interested veterinary medicine when she volunteered at a veterinary clinic in high school. Her clinical interests include Emergency Medicine and Urgent Care. Dr. Mooshian completed a small animal rotating medicine and surgery internship at PVSEC in 2014 and is currently completing an emergency and critical care internship at PVSEC.

Dr. Mooshian likes to think of life as a musical and can be heard singing just about any time. She enjoys traveling, spending time with her family and friends, and trying new foods. Dr. Mooshian shares her home with Ripley, a 3 year old male mixed breed dog she adopted from St. Kitt’s, and Raja, a 10 year old female Torti.

Kelsey Sutcliffe


Dr. Kelsey Sutcliffe is a Pittsburgh native, who begins an Emergency/Critical Care internship at PVSEC.  Dr. Sutcliffe earned her veterinary degree from Ross University and completed her clinical year at Colorado State University.  She earned her Bachelors of Arts in biology from Colby College. 

Dr. Sutcliffe shares her home with her two dogs, “Dee” and “Louie”

Dr. Meredith Maczuzak


Dr. Meredith Maczuzak was originally from the Pittsburgh area before her family was transferred to the eastern panhandle of West Virginia. She completed her Bachelor of Science degree at West Virginia University in Morgantown, WV.  In 2003 she completed her studies at the University of Georgia where she received her Doctorate of Veterinary Medicine.  She went on to complete a small animal medicine and emergency rotating internship at Southpaws Veterinary Specialist & Emergency Center in northern Virginia.  Following her internship, Dr. Maczuzak spent more than 6 years as an emergency clinician at the Veterinary Specialty and Emergency Center (VSEC) located in the suburbs of Philadelphia before deciding to pursue a specialty in critical care medicine.  She completed her residency at the University of Pennsylvania in Philadelphia, PA in 2014.  Since that time she has been working in Intensive Care Units in a variety of locations including Philadelphia, Chicago and Oklahoma City before coming home to Pittsburgh.   

Dr. Maczuzak joined the PVSEC team in the summer of 2017.   She has always been intrigued by the fast pace and constant challenges of emergency and critical care medicine.  Her clinical interests are constantly changing on a case-by-case basis, but include the stabilization and management of multi-trauma patients, septic shock, renal failure and the post-operative management of critically ill patients.  

Outside of the workplace, Dr. Maczuzak enjoys anything that has to do with the water and currently has 6 different SCUBA certifications.  She is obsessed with the Olympics and is an avid football fan.  She enjoys spending her non-work weekends watching her 'Eers, Bulldogs and Steelers compete (win or lose).  She recently lost her beloved dog, Deuce, to cancer and is waiting for the perfect time and the perfect pet to help fill the void that he has left in her life.  In the meantime, she steals extra snuggles from the family cat, Dr. Tipper Bruce, who earned his PhD in coniferous studies in 2015 during Christmas break (due to extreme interest in her fully decorated Christmas tree).      


Dr. Rocio Ramirez


Dr. Rocio Ramirez earned her veterinary degree from the University of La Salle in her native Colombia. After earning her Doctorate of Veterinary Medicine, Dr. Ramirez moved to the United States where she worked both as a surgery technician as well as an intensive care unit and emergency critical care manager at a referral veterinary clinic. 

In 2010, she successfully completed a rotating internship in small animal medicine and surgery at Advanced Veterinary Care Center, and thereafter continued at AVCC as an emergency practitioner.

In 2016, Dr. Ramirez moved to Pittsburgh to start her residency in emergency and critical care at PVSEC. Dr. Ramirez lives with her best friend and husband, Walter, and their cat, Salem. In her spare time, she enjoys dancing, reading, and traveling with her husband.

Elizabeth Ross


Dr. Elizabeth Ross received her undergraduate degree in Biochemistry from Earlham College in 2012. In 2016 she completed her studies at Ross University and Auburn and recieved her DVM. 

Dr. Ross completed her rotating internship at Peiper Memorial in Middletown, Connecticut in 2017. 

Dr. Ross joined the PVSEC team in the summer of 2017 and is currently a Critical Care Resident. Her clinical interests include pancreatitis, SIRS, and hematologic disorders.

In her spare time, Dr. Ross enjoys hiking, cats, yoga, photography, and dancing.

Hospital Treatment Technicians
Clinical Co-Managers
Stephanie Cates