Resources: Testimonials

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See what our clients had to say about their experiences with Executive Healthcare Services:

Al Ludicello, CEO and Chairman, NGP V

"I have known and respected Dr. John Mamana for decades and have been his patient for years. As a physician he is thorough, objective, and practices the highest quality medicine. His care is personalized and he is readily available to answer my medical questions and to solve problems. I give EHS Corporate Care my highest recommendation to anyone seeking expert medical advice, exceptional services, and the best specialty care referrals. Dr. Mamana’s knowledge of medicine is bountiful and the EHS Corporate Care model fits his style of practice allowing convenience and the time needed for those of us seeking expert medical advice and personalized care."

Michael Shehadi, Principal, Oxford Equity Partners; Former Senior Vice President of Charles E. Smith

"Dr. John Mamana has been my Internist for over 20 years and his personalized care is what makes me keep coming back. Day or night, Dr. Mamana is always available to help. More than once, he has helped me get a needed prescription when traveling.

Dr. Mamana is very current on all the latest medical procedures and diagnostic tests. As a new client, my experience with EHS Corporate Care was first rate. Their unique model of proactive medicine and unparalleled access for busy executives like me is invaluable. I am a customer for life."

Roger Mody, former CEO, SIGNAL Corporation, Mody Foundation Chairman:

"My family and I have had the privilege of being Executive Healthcare Services’ (EHS) clients for over a year. The EHS model is unique in many ways! Having access to Drs. Kelleher and Vasiliadis 24/7, 365 days a year via cell phone, e-mail, office visits and home visits has been invaluable to me and my family and is unique in today's medical environment.
Prior to EHS I had been seeing another family physician for over 10 years who was aware of my medical conditions and family history but did not suggest aggressive evaluation and screening. After a convenient, comfortable and non-hurried initial visit, my EHS physician was able to get valuable insight into my medical issues and take corrective actions with vital diagnostic screening tests. They scheduled me with the area’s best specialty care and testing while consulting with me before and after each step. If it weren't for EHS's pro-active, preventive care approach, things could very well have been catastrophic for me at a young age.

I wholeheartedly give Executive Healthcare Services my highest recommendation to anyone seeking expert medical advice, personalized care and exceptional medical services.”

Lawrence Bouman, former CTO for LCI International:

"When I am seen by Dr. Vasiliadis or Dr. Kelleher, or referred by EHS, the speed and attention to detail I receive is a level I have not previously experienced. You guys make a difference!! It's not only your attention and availability, but the doctors you refer me to have just been the best.”

W. Russell Ramsey, Chairman and CEO, Capital Crossover Partners:

"Four years ago, I chose Dr. Vasiliadis to serve as my family’s primary physician and began receiving Executive Healthcare services. He is continually staying abreast of the latest developments in the medical field, and I can count on him to be thorough, meticulous, and to think about each medical situation in a very objective as well as creative, problem-solving way. I also rely on the convenience that being a patient of his offers – immediate attention and care around the clock. Often, problems can be addressed through e-mails and phone calls, further saving me valuable time and avoiding the inconvenience of traveling to and from appointments and waiting in offices.
It is very reassuring to know that my family has the benefit of this standard of care with the access, convenience and quality that Executive Healthcare Services provides. I have recommended Dr. Vasiliadis and Executive Healthcare Services to many of my friends and colleagues, who also value their time and prioritize their health."

Ernst Volgenau, Founder of SRA International, Inc

“Most doctors are overloaded and have limited time to spend with patients; EHS physicians take the time to provide comprehensive, high-quality care, advice, and valuable references.”

Robert A. Hopkins, President, K&H ENTERPRISES, L.L.C.

"Dr. Kevin Kelleher has been my personal physician for three years. I have been fortunate enough to receive Executive healthcare services from him during that time. I have complicated medical problems, at times requiring home visits and urgent intervention. He consistently has treated me with excellent care, providing astute diagnoses and answers to my medical questions. When necessary, he has insured exceptional specialty care through his close relationships with leading area consultants. These specialists have worked in close conjunction with Dr. Kelleher to guarantee the immediate exchange of my medical information.
At times I feel that my life would have been in jeopardy had Dr. Kelleher not been readily available and thorough in his evaluations and treatment. I would highly recommend Dr. Kevin J. Kelleher and Executive Healthcare Services to anyone seeking expert medical advice and personalized care."

Jerry Boutcher, CEO, Monarch Title, Inc:

"Because of the unique services I receive at Executive Healthcare Services, these folks literally saved my life. If I hadn't had these services, and if it really wasn't 24 hour direct access, it would have been a very different outcome.
For the availability of professional medical services on call when you need it, you can't put a price on that."