Cardiologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Chiropractor providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dentist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Dermatologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Family Physician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
OB-GYN providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Ophthalmologist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Orthopedic Surgeon providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Pediatrician providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Physical Therapist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Podiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Psychiatrist providers include doctors, nurses, nurse practitioners, and physician assistants. They often maintain long-term relationships with you and advise and treat you on a range of health related issues.
Kimberly Matzie, MD, FACS, FASCRS, is a board-certified colon and rectal surgeon at Fairfax Colon & Rectal Surgery, PC.
Dr. Matzie was born and raised in Granby, Connecticut. She decided to pursue a career in medicine after undergoing an operation in her freshman year of college. The procedure went well, but the surgeon didn’t have the best bedside manner, and no one on the surgical team explained the process or what to expect during recovery.
Dr. Matzie left the hospital inspired and committed to making interactions with her patients both positive and informative. After earning her undergraduate degree at Harvard College in Cambridge, Massachusetts, Dr. Matzie enrolled at the Perelman School of Medicine at the University of Pennsylvania in Philadelphia.
There, she earned her Doctor of Medicine before completing a residency in general surgery at Brigham & Women’s Hospital in Boston. While there, Dr. Matzie also completed fellowships in clinical research, surgical care, and critical care.
Before entering private practice, Dr. Matzie completed fellowship training in colon and rectal surgery at Cleveland Clinic Florida in Weston. She received extensive tutelage in advanced laparoscopy for small bowel, colon, and rectal surgeries.
As a colon and rectal surgeon, Dr. Matzie has special interests in Transanal Endoscopic Microsurgery (TEM), a minimally invasive approach to removing large rectal polyps and early cancers not responsive to colonoscopy excision or other traditional techniques.
When she isn’t at work, Dr. Matzie enjoys spending time with her husband, Chris, and their two daughters.
Rebekah Kim, MD, FACS, FASCRS, is a board-certified colon and rectal surgeon at Fairfax Colon & Rectal Surgery, PC.
Raised in the greater New York City area, Dr. Kim’s interest in surgery began when she watched her sister undergo multiple procedures as a child. Her family’s trust in the surgeon that cared for her sister was the catalyst that pushed Dr. Kim into medicine. A longtime cellist and pianist, Dr. Kim’s discipline and attention to detail have made her an excellent colorectal surgeon.
After graduating magna cum laude from the College of New Jersey in Ewing Township, New Jersey, where she earned a Bachelor of Science in Biology, Dr. Kim earned her medical doctorate from the prestigious Dartmouth Medical School in Hanover, New Hampshire.
Dr. Kim later completed her surgical residency at Columbia University, St. Luke's-Roosevelt Hospital, in New York City, which drew her toward minimally invasive techniques, such as laparoscopy and robotic surgery. Her interests include the surgical intervention of anal cancer, rectal cancer, anal pain, and other conditions that affect the digestive tract.
Dr. Kim is a fellow of the American College of Surgeons and the American Society of Colon & Rectal Surgeons. She is also a member of the Pan African Academy of Christian Surgeons (PAACS) and has helped train surgeons in Africa. She currently serves on the executive board of the Korean-American Medical Society of D.C. Maryland, and Virginia.
Fluent in English, Spanish, and Korean, Dr. Kim capably serves patients from all backgrounds. In her spare time, she still enjoys playing the piano and the cello.
Timothy Plerhoples, MD, MPH, FACS, FASCRS, is a board-certified colon and rectal surgeon at Fairfax Colon & Rectal Surgery, PC.
Dr. Plerhoples began his professional education at Harvard College in Cambridge, Massachusetts, earning his undergraduate degree. After graduation, he stayed in Massachusetts, obtaining his Master of Public Health from Boston University.
Dr. Plerhoples earned his Doctor of Medicine from the New York University Grossman School of Medicine in New York City. Then, he moved west to pursue surgical training at Stanford University in Stanford, California. During that time, Dr. Plerhoples authored several journal publications about improving surgical techniques and patient care.
Before entering private practice, Dr. Plerhoples completed a surgical residency at Inova Fairfax Hospital in Annandale, Virginia, and a colorectal surgery fellowship at the Mayo Clinic in Rochester, Minnesota.
When he isn’t in the operating suite or developing custom treatment plans, Dr. Plerhoples enjoys spending time with his wife and two daughters. He’s also an avid guitar player, hiker, fisherman, and grill master.
John Tillou, MD, is a board-certified colon and rectal surgeon at Fairfax Colon & Rectal Surgery, PC. He has wanted to be a surgeon since undergoing an operation in high school.
A native of Norfolk, Virginia, Dr. Tillou received his Bachelor of Science in Chemistry at the University of Utah in Salt Lake City, Utah, where he made the Dean’s List, coached high school baseball, worked in a pathology lab, and volunteered at a free medical clinic.
During his undergraduate studies, he earned the Bioscience Undergraduate Research Mini-grant and received the Comprehensive Chemistry Award and Undergraduate Research Scholar award.
Dr. Tillou eventually returned home to attend medical school at the University of Virginia School of Medicine in Charlottesville, Virginia, where he received the Dr. Graham Clark Scholarship and the Charles & Bernice McKay Scholarship.
After graduation, Dr. Tillou completed his general surgery residency at Beth Israel Deaconess Medical Center, a teaching hospital of Harvard Medical School in Boston, Massachusetts. He completed an additional colorectal surgery fellowship at MedStar Washington Hospital Center in Washington, D.C.
While completing his training, Dr. Tillou co-authored several book chapters and papers. He also received the highest score on the annual colorectal training exam.
Dr. Tillou has undergone advanced training in minimally invasive, robotic, and transanal colon and rectal surgery techniques. He has a particular interest in the treatment and management of colon cancer, anal pain, and anal cancer.
In addition, Dr. Tillou holds many professional affiliations, including the American Society of Colon & Rectal Surgeons, American College of Surgeons, Medical Society of Virginia, and Chesapeake Colorectal Society.
Outside of work, Dr. Tillou enjoys hiking, skiing, playing guitar, and spending time with his family.
“Both Dr Tillou and his assistant were great. They both made an unpleasant exam and procedure as comfortable as possible. Dr Tillou was great at explaining everything before, during and after and what to expect and look out for and why. Front desk person was great too. I would definitely highly recommend Dr Tillou and his team.”
Kimberly Matzie, MD, FACS, FASCRS, is a board-certified colon and rectal surgeon at Fairfax Colon & Rectal Surgery, PC.
Dr. Matzie was born and raised in Granby, Connecticut. She decided to pursue a career in medicine after undergoing an operation in her freshman year of college. The procedure went well, but the surgeon didn’t have the best bedside manner, and no one on the surgical team explained the process or what to expect during recovery.
Dr. Matzie left the hospital inspired and committed to making interactions with her patients both positive and informative. After earning her undergraduate degree at Harvard College in Cambridge, Massachusetts, Dr. Matzie enrolled at the Perelman School of Medicine at the University of Pennsylvania in Philadelphia.
There, she earned her Doctor of Medicine before completing a residency in general surgery at Brigham & Women’s Hospital in Boston. While there, Dr. Matzie also completed fellowships in clinical research, surgical care, and critical care.
Before entering private practice, Dr. Matzie completed fellowship training in colon and rectal surgery at Cleveland Clinic Florida in Weston. She received extensive tutelage in advanced laparoscopy for small bowel, colon, and rectal surgeries.
As a colon and rectal surgeon, Dr. Matzie has special interests in Transanal Endoscopic Microsurgery (TEM), a minimally invasive approach to removing large rectal polyps and early cancers not responsive to colonoscopy excision or other traditional techniques.
When she isn’t at work, Dr. Matzie enjoys spending time with her husband, Chris, and their two daughters.
Rebekah Kim, MD, FACS, FASCRS, is a board-certified colon and rectal surgeon at Fairfax Colon & Rectal Surgery, PC.
Raised in the greater New York City area, Dr. Kim’s interest in surgery began when she watched her sister undergo multiple procedures as a child. Her family’s trust in the surgeon that cared for her sister was the catalyst that pushed Dr. Kim into medicine. A longtime cellist and pianist, Dr. Kim’s discipline and attention to detail have made her an excellent colorectal surgeon.
After graduating magna cum laude from the College of New Jersey in Ewing Township, New Jersey, where she earned a Bachelor of Science in Biology, Dr. Kim earned her medical doctorate from the prestigious Dartmouth Medical School in Hanover, New Hampshire.
Dr. Kim later completed her surgical residency at Columbia University, St. Luke's-Roosevelt Hospital, in New York City, which drew her toward minimally invasive techniques, such as laparoscopy and robotic surgery. Her interests include the surgical intervention of anal cancer, rectal cancer, anal pain, and other conditions that affect the digestive tract.
Dr. Kim is a fellow of the American College of Surgeons and the American Society of Colon & Rectal Surgeons. She is also a member of the Pan African Academy of Christian Surgeons (PAACS) and has helped train surgeons in Africa. She currently serves on the executive board of the Korean-American Medical Society of D.C. Maryland, and Virginia.
Fluent in English, Spanish, and Korean, Dr. Kim capably serves patients from all backgrounds. In her spare time, she still enjoys playing the piano and the cello.
Sees Patients At: Bel Air, Pikesville, Elkton, and Towson-GBMC, MD
P. Andrew Rivera, MD, RPVI, is a board-certified vascular Surgeon who joined Vascular Surgery Associates, LLC, in 2022. A Texas native, he completed his undergraduate studies in Music Composition at Baylor University and obtained a Master's degree in Music Composition from the University of North Texas.
Dr. Rivera then received his Medical Doctorate from the University of Texas McGovern Medical School in Houston, Texas and stayed on as a general surgery intern. His surgical residency was completed at the University of Tennessee Health Science Center at Nashville, where he gained experience in general and vascular surgery.
Subsequently, he completed a vascular surgery fellowship at Ochsner Health in New Orleans, Louisiana. There Dr. Rivera gained considerable experience in treating patients with end-stage renal disease, peripheral vascular disease, cerebrovascular disease, and complex aneurysm disease with both open and endovascular techniques.
Dr. Rivera has performed research in outcomes of cerebrovascular interventions using machine learning, and has won the SAVS Founders Award in 2022.
Carter Freiburg, MD, is a board-certified vascular surgeon serving patients in Towson-GBMC and Westminster, Maryland. Dr. Freiburg joined the team at Vascular Surgery Associates, LLC, in 2011.
He earned his undergraduate degree from Washington University in Saint Louis, followed by a medical degree from the Loyola University Chicago Stritch School of Medicine. Dr. Freiburg completed his general surgery residency at The University of Vermont Health Network (formerly the University of Vermont and Fletcher Allen Health Care) and a vascular surgery fellowship at Yale University in New Haven, Connecticut.
As part of his training at Yale, he studied complex thoracic and abdominal aortic endovascular surgery at the Royal Prince Alfred Hospital in Sydney, Australia. His practice encompasses all aspects of open vascular and endovascular surgeries.
Dr. Freiburg is currently accepting new patients and looks forward to helping them improve their health. He welcomes them to visit Vascular Surgery Associates, LLC, and schedule an appointment
Sees Patients At: Baltimore, Frederick, Pikesville, and Westminster, MD
Kristian Ulloa, MD, FACS, is a vascular surgeon at Vascular Surgery Associates, LLC. He provides comprehensive and individualized care to patients in Baltimore, Frederick, Pikesville, and Westminster, Maryland.
Dr. Ulloa joined the team at Vascular Surgery Associates in 2011. After earning his undergraduate degree from Emory University in Atlanta, Georgia, he returned to his home state of New Jersey, where he completed his medical school training at Rutgers Biomedical and Health Sciences (formerly the University of Medicine and Dentistry of New Jersey) in Newark.
He then moved to Maryland to complete his general surgery residency and vascular fellowship at the University of Maryland Medical Center in Baltimore. During his training, Dr. Ulloa presented research at multiple national and regional meetings.
Throughout his career, Dr. Ulloa has also authored chapters in vascular surgery texts on endovascular treatment of venous disease as well as the management of peripheral aneurysms.
Dr. Ulloa has been recognized for his achievements and was awarded a Top Doc Award in 2017 and 2020 by Baltimore magazine.
Sees Patients At: Elkton, Towson-GBMC, and Belair, MD
Clinton Protack, MD, PhD, is a board-certified vascular surgeon who joined Vascular Surgery Associates, LLC, in 2019. He is proud to provide exceptional care to patients in Baltimore, Ellicott City, Pikesville, Towson-GBMC, and Westminster, Maryland.
He completed his undergraduate work at Lehigh University and received his Doctor of Medicine from the University of Rochester School of Medicine and Dentistry in New York. His surgical residency was completed at Yale-New Haven Hospital in Connecticut. At Yale University, Dr. Protack earned his PhD while investigating AV fistula maturation in the vascular biology and therapeutics program. He then proceeded to complete a vascular surgery fellowship at the Cleveland Clinic Foundation.
Dr. Protack holds the Registered Provider in Vascular Interpretation (RPVI) certificate and is board certified in surgery.
Dr. Protack is currently accepting new patients and is excited to partner with them in their health care journey. He welcomes them to Vascular Surgery Associates, LLC, and encourages them to schedule an appointment.
Sees Patients At: Bel Air, Elkton, and Towson-SJMC, MD and Newark, DE
Donald Hahn, MD, is a board-certified vascular surgeon who joined Vascular Surgery Associates, LLC, in 2019. He provides a wide range of vascular services to patients in Bel Air, Elkton, and Towson-SJMC, Maryland and Newark, Delaware.
A Baltimore native, Dr. Hahn completed his undergraduate degree in microbiology at the University of Maryland, College Park, before obtaining his medical degree from the West Virginia University School of Medicine in Morgantown. He completed his general surgery residency at Union Memorial Hospital in Baltimore, followed by two years of a vascular surgery fellowship at Carolinas Medical Center in Charlotte, North Carolina.
Dr. Hahn has given several national presentations on complex aortic and carotid artery disease. In addition to his vascular surgery specialization, Dr. Hahn is board certified in general surgery and holds a certificate as a Registered Provider in Vascular Interpretation. He is thrilled to return to his hometown and provide excellent care in all aspects of vascular surgery to the people and community with whom he grew up.
