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.
Katherine Khalifeh, MD, FACS, FASCRS, is a board-certified colon and rectal surgeon at Fairfax Colon & Rectal Surgery, PC.
Dr. Khalifeh was born and raised in Minnesota. She comes from a family of physicians and knew she wanted to follow in the footsteps of her father and grandfather by pursuing a career in surgery.
Dr. Khalifeh began her professional pursuits at Boston College, earning her Bachelor of Science. After graduation, Dr. Khalifeh earned her Master of Science from Georgetown University in Washington, District of Columbia, and her Doctor of Medicine from Johns Hopkins University, in Baltimore, Maryland.
Before entering private practice, Dr. Khalifeh completed general surgery training at Johns Hopkins and a colon and rectal surgery fellowship at MedStar Washington Hospital Center (formerly Washington Center Hospital) in Washington, DC.
Dr. Khalifeh has specialized training in diagnosing and treating a wide range of disorders affecting the colon, rectum, and anus, including cancer, inflammatory bowel disease, fecal incontinence, and hemorrhoids.
When she isn’t performing surgery or meeting with patients, Dr. Khalifeh enjoys contributing to professional medical journals. She’s also presented papers at conferences for the American Society of Colon and Rectal Surgeons and the American Medical Association.
Dr. Khalifeh is a member of the American Society of Colon & Rectal Surgeons and the American College of Surgeons. In her free time, she enjoys traveling with her husband Marwan, their two young daughters, and their dog, Bisou.
Sees Patients At: Columbia, Ellicott City, and Pikesville, MD
Yi Zhou, MD, FACS, is a board-certified vascular surgeon at Vascular Surgery Associates, LLC, in Columbia, Ellicott City, and Pikesville, Maryland,. Dr. Zhou aims to provide high-quality and individualized care to his patients.
Born and raised in China, Dr. Zhou moved to the United States to pursue his education. He completed his college education in Kentucky.
Dr. Zhou obtained his medical degree from SUNY Upstate Medical University in Syracuse, New York. Followed by general surgery residency training at Albany Medical Center (Albany Med) in Albany, New York. He then pursued a two-year vascular surgery fellowship at Geisinger Medical Center in Danville, Pennsylvania.
During his residency and fellowship training, Dr. Zhou has given several national and regional presentations on aneurysm disease and mesenteric disease. He has also co-authored multiple clinical papers in the field of vascular surgery. Following his fellowship Dr. Zhou was on staff at the Wellspan Hospital in York, Pennsylvania, for four years.
Dr. Zhou is double board-certified in general surgery and vascular surgery. He is a Fellow of the American College of Surgeons (FACS) and holds a certificate as a Registered Provider in Vascular Interpretation.
Apart from taking care of his patients, Dr. Zhou enjoys classical music and watching motor racing.
Sees Patients At: Bel Air, 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.
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.
