Premier, personalized, convenient healthcare and medical concierge services

Executive Health Services (EHS) is a premier concierge medical practice based in the Washington D.C. region, serving high-profile individuals including VIPs, executives, and their families. Founded in 2004 as a response to fragmented and impersonal healthcare, EHS pioneered one of the first Family Medicine concierge models in the U.S.

With over 20 years of experience, EHS delivers personalized, reliable, accessible, and timely care through a collaborative “Care Team” approach. Their board-certified clinicians emphasize evidence-based medicine, continuity of care, and genuine relationships with patients.

EHS limits its client base to ensure each member receives dedicated time and attention. Through strong local and global healthcare networks, they offer unbiased specialist referrals and tailored treatment coordination. Services range from annual physicals to urgent care and access to cutting-edge treatments worldwide—designed to fit the demanding schedules of their members.

Signature Services

  • EHS Comprehensive Physical Exam

  • Comprehensive Lab Screening Panel

  • Medical Care While You Travel

  • Same-day Prescription Refill Processing

  • Nutrition, Exercise, and Wellness Support

  • Specialist and Imaging Service Coordination

  • Medical Support While You Travel

Practice Locations

Reston, VA

12040 South Lakes Dr,
Suite 204,
Reston, VA 20191
Phone: (703) 230-0347
Fax: (703) 230-0350
Email: membership@EHSdocs.com

Potomac, MD

7811 Montrose Rd,
Suite 530,
Potomac, MD 20854
Phone: (240) 599-5400
Fax: (703) 230-0350
Email: membership@EHSdocs.com

Meet Our Physicians

Dr. Mark Vasiliadis

M.D., A.B.F.M.

Dr. Vasiliadis is a graduate of Langley High School, Virginia Tech and the University of Virginia School of Medicine. He completed his Family Practice residency training at Franklin Square Hospital in Baltimore, Maryland. He is board certified in Family Practice and has been practicing adult and pediatric medicine in the Northern Virginia area since 1994. Since 2003, he has been honored by selection to the list of our area’s “Best Doctors” by both the Washingtonian and Virginia Business magazines. Dr. Vasiliadis tutors medical students from Georgetown University Medical School and the George Washington School of medicine, where he is an Assistant Clinical Instructor. He has served on both the Fairfax County Medical Society and the Reston Hospital Medical Care Review committees. He has enjoyed his role as ‘Team Physician’ for multiple youth sports’ programs. His special interests include sports medicine, exercise science and pediatrics. However, he enjoys caring for the entire family. Dr. Vasiliadis married Lynne Epperly from Fairfax, Virginia in 1989. They have two adult children and reside in Reston, Virginia. His passions include golf, poker and training his Golden-doodle, Bella. Dr. Vasiliadis’ panel is full and he is not accepting new clients at this time.

Dr. Kevin Kelleher

M.D., A.B.F.M.

Originally from Buffalo, New York, Dr. Kelleher is a board-certified Family Physician who has practiced in the Northern Virginia area since 1996. Dr. Kelleher received his Medical Degree from the State University of New York at Buffalo and completed his residency at Franklin Square Hospital in Baltimore where he served as Chief Resident. Dr. Kelleher has been ranked by his peers as a Washingtonian Magazine’s “Top Doctor” for multiple years, as well as having been selected by Washington Consumer’s Checkbook, nationally by the Best Doctors company, and internationally by Castle Connelly continuously since 2009 as a top Primary Care Physician. Since 2008 he has worked with medical students as an Assistant Clinical Instructor for GWU Department of Medicine. He has served on the Reston Hospital’s Infectious Disease committee and has served as a member of the local county school system’s Family Life Education Curriculum Advisory Committee. He has spoken locally and nationally on subjects including migraine management, smoking cessation and health information technology, with a focus on personalized apps and wearables to better improve health care reform. He serves as the Medical Director for eDoc4u, an online Health Risk Assessment company, and has been the Medical Director of the award-winning Nurse Advocacy Program at SRA International. He has special interests in Sports Medicine, migraine headache, Adolescent Medicine, smoking cessation and health information technology, with a focus on personalized apps and wearables to better improve health. His hobbies include the Sciences and American history. He enjoys all sports, especially golf, volleyball and football. He lives in Reston, Virginia with his wife, Karen, and their son, Brayden. Dr. Kelleher’s panel is full and he is not accepting new clients at this time.

Dr. Allison Bae

M.D., A.B.F.M.

Dr. Bae is a highly regarded Family Physician, who has practiced in N. Va for over 25 years, including 7 years in Concierge Primary Medicine. Dr. Bae will join the EHS clinician team on a Part-Time basis to help our clinician team in providing EHS client’s access to exceptional medical care, conveniently. Full bio to come.

Dr. Ryan Bosch

M.D., F.A.C.P., MBA

Dr. Bosch graduated from the University of Virginia as an Echols scholar. He completed his medical school training at the top of his class at UVA on a full U.S. Air Force scholarship. After completing a residency in internal medicine and a fellowship in aerospace medicine in the USAF, Dr. Bosch served in the Air Force as a highly decorated physician officer, and ultimately became the Chief of Flight Medicine at the Pentagon. In this capacity, Dr. Bosch was the personal physician to the Secretary of Defense, Chairman of the Joint Chiefs of Staff and Secretary of the Air Force. Upon separating from the USAF, Dr. Bosch joined the George Washington University (GWU) MFA academic practice and took on the leadership of their 30-physician internal medicine division. As Director of General Medicine, Dr. Bosch founded their Executive Health Center, developed their teaching curriculum and became a physician leader on the White House Medical Team. Dr. Bosch has been the personal physician and health advisor for the Vice President, many cabinet leaders, celebrities, local CEOs and international dignitaries. In addition to being board-certified in internal medicine, Dr. Bosch holds an MBA in health care informatics from GWU School of Business. Notable personal accolades include authoring the HIMSS national article of the year in The Journal of Healthcare Information Management for his rapid implementation methodology. For his innovative clinical work in technology, Dr. Bosch was named one of three “Microsoft Clinicians of the Year.” Dr. Bosch was also honored locally as a “Best Doctor” by the Washingtonian magazine. Dr. Bosch’s current clinical practice panel is closed to his current patients only at this time. Dr. Bosch has special medical interests in preventive care, clinical informatics, sports medicine and nutrition. He lives in McLean with his wife and two children. Dr. Bosch’s favorite past time is coaching his kids’ sports and playing basketball. Dr. Bosch has limited availability and is accepting new clients by direct referral only.

Are you ready to take the hassle out of healthcare?

Our offices are conveniently located in Reston, VA, and Potomac, MD. Each office location offers our full suite of comprehensive healthcare services. If you have any questions or would like additional information about becoming an EHS client, please fill out our contact form or contact one of our offices directly.

 

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