Concierge Medicine in McLean, VA
McLean
Contact our McLean Concierge Medical Practice
MD2 concierge medicine in McLean is located in Tysons Corner, adjacent to Tysons II / The Galleria.
At MD2 McLean, you'll have the remarkable opportunity to be served by two of the finest physicians in the Washington D.C. area. Both concierge medical physicians are affiliated with the Virginia Hospital Center, Inova Fairfax Hospital and Georgetown University Medical Center and have long-standing ties with the top specialists in the D.C. and Virginia medical communities.
Concierge Doctors
Dr. Suzanne Wittig, MD
Dr. Suzanne Wittig, a sought-after D.C. area physician for over 20 years, is perhaps best known for her superior clinical skills, consultative expertise, and exceptional leadership- a rare combination for which she has long been recognized and celebrated by her peers and patients alike. She has been named a “Top Doctor” by Washingtonian Magazine and Northern Virginia Magazine for the last 20 years.
After receiving her undergraduate degree from Georgetown University, Dr. Wittig went on to earn her medical degree from Georgetown University’s School of Medicine, graduating with multiple honors and merits. Dr. Wittig completed her residency and chief residency in Internal Medicine at Georgetown University. She continues to teach physical diagnosis to medical students at the Georgetown University School of Medicine.
Prior to joining MD², Dr. Wittig was a partner and internist at Pulmonary and Medical Associates, where she also served as the Chief of their Internal Medicine Division. In addition, she served on several committees at Privia Health and Virginia Hospital Center. In 2005, Dr. Wittig was one of the select few physicians chosen for Virginia Hospital Center’s Executive Health Program, where she saw patients for over a decade. Dr. Wittig is board certified in Internal Medicine and is a member of the American College of Physicians.
Outside of medicine, she enjoys spending time with family, especially her husband and two daughters with whom she often creates new memories through travel. She finds joy in playing golf, reading, and taking long walks.
Dr. David R. Duhamel, MD, FCCP
With over two decades of experience in pulmonary and critical care medicine, Dr. Duhamel is a nationally recognized leader in interventional pulmonology and oncology. He was the first to successfully perform Bronchial Thermoplasty for severe asthma and administer the Zephyr Valve Procedure for advanced emphysema—setting new standards in respiratory care. Before joining MD², he co- founded PMA Health, advancing patient-centered care through innovative diagnostics and therapies. He also served as Director of the Lung Cancer Center and Director of Pulmonary Special Procedures at Virginia Hospital Center in Arlington.
At MD², Dr. Duhamel is a primary care physician deeply committed to caring for the whole person. He leverages his clinical expertise to identify key health concerns. He works in close partnership with patients to support their overall health and wellness—not just during times of illness but throughout every stage of life. Known for his emotional support and steadfast availability, Dr. Duhamel builds strong, trusting relationships that empower patients to feel confident, cared for, and actively engaged in their lifelong health journey.
Dr. Duhamel completed his fellowship in Pulmonary and Critical Care Medicine at the University of California, San Diego, following his tenure as Chief Resident in Internal Medicine at Georgetown University Hospital, where he also earned his medical degree. His academic foundation in biology, graduating Cum Laude from Georgetown University, laid the groundwork for a career defined by intellectual rigor and humanistic care.
A dedicated educator, Dr. Duhamel holds a long-standing appointment as Clinical Associate Professor at Georgetown University Hospital, mentoring the next generation of physicians in the art and science of medicine. He is also the author of the Clinical Atlas of Airway Diseases, a widely used resource among medical students and trainees.
Dr. Duhamel is a multi-year recipient of the prestigious Top Doctor award, recognized by Castle Connolly and The Washingtonian for his excellence in patient care and clinical leadership.
Outside of medicine, Dr. Duhamel is a skilled craftsman who enjoys woodworking and cabinet making. He’s an avid outdoorsman who loves camping and backpacking with his children, and he finds joy in cooking and entertaining friends and family.
Hospital Affiliations
Virginia Hospital Center
Inova Fairfax Hospital
Georgetown University Medical Center
Dr. Suzanne Wittig, MD
Dr. Suzanne Wittig, a sought-after D.C. area physician for over 20 years, is perhaps best known for her superior clinical skills, consultative expertise, and exceptional leadership- a rare combination for which she has long been recognized and celebrated by her peers and patients alike. She has been named a “Top Doctor” by Washingtonian Magazine and Northern Virginia Magazine for the last 20 years.
After receiving her undergraduate degree from Georgetown University, Dr. Wittig went on to earn her medical degree from Georgetown University’s School of Medicine, graduating with multiple honors and merits. Dr. Wittig completed her residency and chief residency in Internal Medicine at Georgetown University. She continues to teach physical diagnosis to medical students at the Georgetown University School of Medicine.
Prior to joining MD², Dr. Wittig was a partner and internist at Pulmonary and Medical Associates, where she also served as the Chief of their Internal Medicine Division. In addition, she served on several committees at Privia Health and Virginia Hospital Center. In 2005, Dr. Wittig was one of the select few physicians chosen for Virginia Hospital Center’s Executive Health Program, where she saw patients for over a decade. Dr. Wittig is board certified in Internal Medicine and is a member of the American College of Physicians.
Outside of medicine, she enjoys spending time with family, especially her husband and two daughters with whom she often creates new memories through travel. She finds joy in playing golf, reading, and taking long walks.
Dr. David R. Duhamel, MD, FCCP
With over two decades of experience in pulmonary and critical care medicine, Dr. Duhamel is a nationally recognized leader in interventional pulmonology and oncology. He was the first to successfully perform Bronchial Thermoplasty for severe asthma and administer the Zephyr Valve Procedure for advanced emphysema—setting new standards in respiratory care. Before joining MD², he co- founded PMA Health, advancing patient-centered care through innovative diagnostics and therapies. He also served as Director of the Lung Cancer Center and Director of Pulmonary Special Procedures at Virginia Hospital Center in Arlington.
At MD², Dr. Duhamel is a primary care physician deeply committed to caring for the whole person. He leverages his clinical expertise to identify key health concerns. He works in close partnership with patients to support their overall health and wellness—not just during times of illness but throughout every stage of life. Known for his emotional support and steadfast availability, Dr. Duhamel builds strong, trusting relationships that empower patients to feel confident, cared for, and actively engaged in their lifelong health journey.
Dr. Duhamel completed his fellowship in Pulmonary and Critical Care Medicine at the University of California, San Diego, following his tenure as Chief Resident in Internal Medicine at Georgetown University Hospital, where he also earned his medical degree. His academic foundation in biology, graduating Cum Laude from Georgetown University, laid the groundwork for a career defined by intellectual rigor and humanistic care.
A dedicated educator, Dr. Duhamel holds a long-standing appointment as Clinical Associate Professor at Georgetown University Hospital, mentoring the next generation of physicians in the art and science of medicine. He is also the author of the Clinical Atlas of Airway Diseases, a widely used resource among medical students and trainees.
Dr. Duhamel is a multi-year recipient of the prestigious Top Doctor award, recognized by Castle Connolly and The Washingtonian for his excellence in patient care and clinical leadership.
Outside of medicine, Dr. Duhamel is a skilled craftsman who enjoys woodworking and cabinet making. He’s an avid outdoorsman who loves camping and backpacking with his children, and he finds joy in cooking and entertaining friends and family.
MD2 DC McLean is an assumed business name for Casolaro Wittig LLC, a Virginia professional limited liability company. MD2 International, LLC owns the proprietary name and marks “MD2.” Only physicians of MD2 DC McLean are authorized and licensed to provide medical services to patients. MD2 International LLC is a practice management company that provides business, administrative, and financial consulting services to MD2 DC McLean. MD2 International, LLC does not practice medicine, is not licensed to provide health services or to practice medicine and it does not provide medical services, care or consultation.
For Your Consideration
There is a purity to MD2 you will not find elsewhere. At the heart of it, you are 1 of just 50 families who retain the services of a personal physician who knows you as well as their own family. The annual retainer varies based on the family configuration, from individuals to couples and families with children. All fees are paid on a monthly basis, and there is no annual contract. To discuss specific pricing, please contact us. The MD2 fee ensures absolute, unlimited access to your physician, as well as their physician partner, and covers all care and services provided by the office.
Is there an annual contract for services?
We believe medical care should be based on a deeply meaningful relationship between a physician and a patient that ideally lasts a lifetime – not a contract. The only contract we use reflects our promise to you. It binds us to you, not the other way around. There is no obligation on your part. If for any reason you wish to depart MD2, you can cancel your services at any time without any financial commitment. Your doctor will graciously work with you to establish care with another physician of your choosing.
What services are included?
Simply put, every primary care service is included. There is no additional billing. To help you understand the term “primary care,” think of it as all the care and services required when you “go to your doctor.” But in this case, your doctor is a star internist who graduated at the top of their class and is regarded as the master diagnostician – an art that can be lost today, but never at MD2.
This includes such things as an extensive annual physical, unlimited visits, house and workplace calls, x-rays, routine lab tests and diagnostics indicated by your age, health, and conditioning status. These tests may include blood panels, cardiovascular screening, cancer evaluations, and whatever else your physician believes will promote your healthiest lifestyle. When you leave an MD2 office, you are never handed a bill for our services.
With unlimited time, your MD2 physician will go beyond the customary. They will guide you to appropriate consultants, specialists, and surgical services as needed and often accompany you to those appointments to ensure complete continuity of care. Your care is thorough and extensive yet always custom tailored.
Will my physician manage my care while I am traveling?
MD2 was explicitly designed to accommodate families who travel frequently and often live in a second residence for at least part of the year. Caring for highly mobile families is our specialty. Your physician will always remain your primary contact when you or your family travels; they will be your first call if you have a medical need and are prepared to care for you, regardless of your location. In addition, prepping for travel and planning your care while you are away will be a key element of your care. Should you fall ill or need medical attention while in another city with an MD2 office, your physician will coordinate care for you with their MD2 partner in that city. Lastly, as an MD2 patient, you are enrolled in a worldwide medical evacuation service, should you ever need it.
What if my physician goes on vacation?
We've set up each MD2 practice so that your physician or their partner will always be available to you. You will have direct access to both physicians’ private cell phones, which you can call anytime, day or night. If your physician is unavailable, you will have direct access to their MD2 partner physician. You will never have to go through a front desk, an obscure exchange service or even a nurse to get to your physician or their partner, even if they are on vacation.
What if I need to go to the hospital?
At MD2, you will never be left alone in your time of need. Shockingly, it has become customary today that physicians no longer follow patients during hospitalization. Instead, they leave their patients in the hands of hospitalists. At MD2 we believe this is unacceptable. MD2 physicians visit their patients while in the hospital and orchestrate care with medical specialists in any field. Should you require a hospital stay, your physician will be at your side as your advocate and quarterback.
Furthermore, if specific health services would be best provided at a medical center in another city, your MD2 physician will make all the arrangements for your stay and continue to be involved in overseeing your care.
Can my children join MD2?
As internists, we specialize in the care of adult patients, however, the age at which children transition out of pediatric care varies by individual. It’s a wonderful discussion to have with your MD2 physician. Please know that even when your child is under the care of their pediatrician, we welcome being involved and receiving questions. Multi-generational care is our specialty.