Meet Our Doctors in McLean, Virginia

Benjamin Pasicov, MD (Founder)
Medical Specialty: Emergency Medicine
Dr. Pasicov trained at the University of Toronto Faculty of Medicine. After working for many years in emergency departments at hospitals in Toronto and Northern Virginia, he left the hospital environment to open and administer McLean Immediate Care in 1987. He has enjoyed serving the community of McLean and the surrounding areas since then. Dr. Pasicov is now enjoying semi-retirement with his wife and family.

Nomi Shaool, MD
Medical Specialty: Emergency Medicine
Dr. Shaool is a United States Navy Veteran. She trained in Emergency Medicine at Thomas Jefferson University in Philadelphia. She served as a physician both on active duty and in the Reserve. As the general medical officer at the Officer Candidate School (OSC) at Quantico, Virginia, she was responsible for both primary care and emergency care that occurred during Marine Corp training for 3,000 candidates per year. She was honored with a naval and marine achievement medal. Dr. Shaool has cared for patients at our walk-in clinic since 2009. She speaks both Hebrew and Arabic.

Jun Quion, MD
Medical Specialties: Internal Medicine & Interventional Cardiology
Dr. Jun Anthony Quion was born in Manila, Philippines. After finishing medical school, he completed a residency in Internal Medicine at Baylor College of Medicine in Houston, Texas. He then completed a fellowship in lipid and cholesterol management before having further training in Cardiology and Interventional Cardiology at the University of Connecticut. He has been in private practice in Virginia since 2000. His hobbies include running, golf, reading, and traveling with his wife and five kids.

Matthew Haden, MD
Medical Specialty: Family Medicine
Dr. Haden was born and raised in Nebraska. He attended the University of Connecticut School of Medicine for a joint MD and master’s degree in public health. Dr. Haden began his residency training at Georgetown/Providence Hospital in Washington, DC, before transferring to the Mayo Clinic Arizona, where he completed his specialty training in Family Medicine. He is board certified in Family Medicine and has worked for several years in urgent care and primary care. He has been assisting McLean Immediate Care since 2014, while building his private practice. Outside the medical world, Dr. Haden likes travel, exercise, concerts, and he is also an electric car aficionado.


We have proudly served patients in McLean, Virginia, and the surrounding areas since 1987.