— OUR TEAM
Meet The Doctors
Allison Hockman, DO
Dr. Hockman cares deeply for her patients and keeps them at the center of the healing and therapeutic relationship. She is committed to promoting wellness and preventing illness in both acute and chronic conditions.
Ana Paunovic, MD
Dr. Paunovic practices patient centered, evidence based medicine and places patients at the core of care. She is dedicated to communication and individualized treatment, with focus on women’s health, complex conditions, and inclusive care.
Christopher Duke, MD
Christopher Duke, MD is a second-generation physician and native Washingtonian. His parents practiced medicine in Washington for four decades. Chris has practiced internal medicine here for 30 years.
Paul Silver, MD
Paul A. Silver, M.D., F.A.C.P., was born in Philadelphia at Hahnemann Hospital. Twenty-two years later, he returned to Hahnemann to attend medical school after receiving his bachelor’s degree in biology from Kenyon College.
Amy Stone, MD
*Waitlist Only
Amy Gittleman Stone, MD, has been practicing medicine in our area for over 25 years. Originally from Providence, Rhode Island, she graduated from St. Louis University Medical School in 1997.
James T. Williams, MD
*Practice Full
Jim is a Washington area native and a board-certified Family Physician. He earned a B.A. in Classical Languages from the University of Virginia, obtained his medical degree from the Medical College of Virginia
Andrea Hulse, DO
Dr. Hulse cares deeply for her patients and keeps them at the center of the healing and therapeutic relationship. She is committed to promoting wellness and healing in the setting of acute and chronic illness.
Brad Moore, MD
Brad Moore, MD built his medical career in Washington, DC, where he spent more than three decades at The George Washington University. He later served as founding Director of the Lifestyle Medicine Program, combining academic medicine with evidence-based lifestyle care.
Dr. Amy Stone is the best, not only a knowledgeable and caring physician, but a genuine friend. She has helped my wife and me on numerous occasions in matters large and small, always evincing concern and understanding. In short, she is a pro, but more than that, a confidant with an uncanny ability to give her patients fortitude to confront their illnesses with strength. I have never had a better physician.
Hunter R.
Dr. Paul Silver has been our primary care physician for more than twenty years. Dr. Silver is a thorough, conscientious, and engaging practitioner who invariably has been accessible and attentive to our health needs. We regard him as a friend as well as the coordinator of our medical imperatives.
Melanne and Philip V.
Dr. Duke is my favorite physician. He has been my primary Doctor for the last 25 years. He is one of the few physicians that greets you at appointment time. Rare in this day and age. His diagnosis of my past issues have been spot on. Every doctor he has recommended has been exceptional. Great person.
Richard F.
Dr. Williams is a wonderful doctor who is always available, is a great diagnostician and knows the right specialists. He is also a kind person with a sympathetic ear.
Beth G.
Dr. Stone is a caring, pragmatic physician who is committed to improving her patients’ health. She is willing to go above and beyond for her patients and serve as the quarterback to coordinate care among specialists in the face of complex medical issues. Dr. Stone and her staff are always accessible and extremely responsive. I feel very fortunate to be in her care and can’t recommend her enough.
Johanna K.
Dr. Silver is a meticulous and well informed provider; he assesses his patient’s status thoroughly; he designs a course of care quickly and efficiently and is careful to follow up. Most important he communicates carefully in person or by email or phone, and answers questions readily; at times he will undertake additional research. I trust his judgment in choosing specialists when needed and his general advice in managing my personal well-being.
Deirdre L.
Chris Duke has been my primary care physician for more than 20 years, providing excellent care in a thoughtful and collaborative manner. He and his team have been welcoming and responsive, and I trust and rely on their advice and counsel.
Larry K.
My husband and I have been patients of Dr. Williams for years. We are extremely pleased with the way he has treated us. His empathy and bedside manner have always been comforting, to say the least. Dr. Williams has always been accessible and there for us. We wouldn’t think of seeing anyone else.
Susan D.
Dr Hulse has helped me tremendously in my quest for better health. She is easy to talk to and offers excellent medical advice.
I feel fortunate to have Dr Hulse as my primary care physician. She listens, provides good medical advice, and clearly answers my questions.
Had a great experience with Dr. Paunovic. She was very thoughtful and thorough. I can rest assured that I’ve found a good doctor in the DC area.
Dahna K.
Dr. Paunovic is an exceptional healthcare provider! She has been my physician for more than 15 years and truly admire here. Dr. Paunovic’s professionalism, compassion, and expertise made a significant difference in my treatment. I highly recommend her for their outstanding care and dedication to their patients. Five stars isn’t enough – I’d give them ten stars if I could!
Rithm D.
I really love Dr. Paunovic. She’s smart, thorough, compassionate and understanding. And Medstar has improved their service and process quite a bit since I first became a patient many years ago. I’d recommend them to anyone looking for primary care.
Amy G.
I had an exceptional experience with Dr. Ana Paunovic. Despite my last-minute appointment, she accommodated me quickly and with great professionalism. Dr. Paunovic was incredibly thorough, taking the time to explain every aspect of my condition and treatment plan in clear, easy-to-understand terms. Her patience and attention to detail made me feel truly cared for and confident in the care I received. I highly recommend Dr. Paunovic to anyone seeking a knowledgeable, compassionate, and attentive medical professional.
Dragan D.
Dr. Paunovic is one of the most wonderful doctors. I couldn’t be more impressed with her expertise and care. From the moment I met her she made me feel welcomed and comfortable. During my consultation, she took the time to listen to my concerns and thoroughly explained everything I was interested in. She is very compassionate and attentive, making me feel like my health was her top priority. I highly recommend Dr. Paunovic to anyone in need of a skilled and caring doctor.
Marko K.
Dr. Paunovic has completely change my mind on what going to a doctor is! She is incredibly knowledgeable, attentive, and most importantly, non-judgmental. Her compassionate approach made me feel comfortable discussing my concerns openly. Highly recommended!
Carolina D.
Who We Are
Great healthcare begins with simple promptness, hustle, and attention to detail. We believe the best medicine depends on great communication with our patients, the specialists we refer them to, and their families who participate in their care. The best physicians recognize this and make every step of the process their highest priority. This means our doctors visit their patients in the ER, engage with hospitalists during in-patient stays and discharge planning, and make house calls when needed. This means staff listen to our patients and identify all obstacles to great care and help patients overcome them, especially when patients and their families have trouble coordinating care on their own. The drive to excel at the little things that comprise great healthcare never stops with just the doctor, it is in everyone’s job description, and is a core ingredient in the most Complete Concierge Care.
Physicians at our Bethesda Location
— FAMILY MEDICINE
Allison Hockman, DO
Biography
Dr. Allison Hockman is a board-certified Family Medicine physician and proud Montgomery County native. Originally from Olney, Maryland, she completed her undergraduate studies at George Washington University, where she discovered a passion for community health and preventive care while earning her Bachelor’s Degree in Public Health. Seeking new perspectives and settings, Dr. Hockman continued her medical education along the coast of Maine at the University of New England College of Osteopathic Medicine. She later returned home to Maryland for residency training at the University of Maryland Medical Center, where she served as Chief Resident in her final year.
Dr. Hockman believes in developing close, long-term relationships with her patients built on trust, communication, and collaboration. She prioritizes preventive care as the foundation of lifelong health and aims to support patients in making informed choices that promote wellness at every stage of life. She emphasizes a balanced approach that incorporates lifestyle guidance, education, and proactive health strategies. She provides comprehensive primary care with special interests in women’s health, menopause management, and supporting patients as they age.
Outside of medicine, Dr. Hockman enjoys traveling, swimming, pottery, flower arranging, cooking, and exploring Washington, D.C.’s museums. She can often be found spending time with her husband and two dachshund-chihuahua mixes, Marley and Poppy.
Location
Dr. Allison Hockman sees patients in Bethesda, Suite 404
Certification & Education
Board Certified
Family Medicine
Residency
University of Maryland Medical Center
Medical School
University of New England College of Osteopathic Medicine
Undergraduate Education
George Washington University
— INTERNAL MEDICINE
Ana Paunovic, MD
Biography
Dr. Ana Paunovic has been practicing medicine in the DC/Maryland area for the past 15 years. Her philosophy of care is to offer cutting edge, evidence-based medicine, with a holistic approach that centers her patients. In her view, the highest quality of care is born out of open and honest communication with her patients in order to offer customized approach that aligns with every patients core values regarding their overall health and well-being. While she enjoys caring for adults of all walks of life, her passion is in women’s health, patients dealing with more obscure complex illnesses including eating disorders, POTS, EDS and MCAS. Her medical practice is grounded in Health at Every Size® framework, supporting health and well-being across body sizes while avoiding weight-centric and stigmatizing approaches to care. She is also passionate about providing care for LGBTQIA+ populations.
Outside of work, she enjoys watching and playing tennis, spending time with her nieces, her dog Lucky and her close friends. She is also a fan of film and theatre.
Dr. Ana Paunovic sees patients in Bethesda, Suite 404
Certification & Education
Board Certified
Internal Medicine
Residency
University of Maryland
Medical School
Louisiana State University Health Sciences Center New Orleans
Undergraduate Education
Physicians at Sibley Memorial Hospital
— INTERNAL MEDICINE
Christopher Duke, MD
Biography
Christopher Duke, MD is a second-generation physician and native Washingtonian. His parents practiced medicine in Washington for four decades. Chris has practiced internal medicine here for 30 years. He attended George Washington University for his undergraduate and medical degrees. He completed Internal Medicine training at Penn State University.
Chris practices evidence-based medicine while emphasizing empathy for his patients and their families. He personally knows and refers patients to the many outstanding specialists in Washington. He is excited to team with his patients to optimize their health and enjoyment of life. He has taught medical students at George Washington as an associate professor of medicine. He has been recognized by Washingtonian Magazine as a “Top Doctor” including in 2022.
Outside of work, he enjoys traveling with wife Lilian and children Jacqueline and James. He loves attending Notre Dame football games and spoiling his pugs- Mini and Rockne!
He now also offers in-home senior living services to help older adults maintain independence and quality care in the comfort of their own homes.
Location
Dr. Christopher Duke sees patients in Sibley Hospital, Building A, Suite 460
Certification & Education
Board Certified
Internal Medicine
Residency
Penn State Milton S Hershey Medical Center
Medical School
George Washington University School of Medicine
Undergraduate Education
George Washington University
— INTERNAL MEDICINE
Paul Silver, MD
Biography
Paul A. Silver, M.D., F.A.C.P., was born in Philadelphia at Hahnemann Hospital. Twenty-two years later, he returned to Hahnemann to attend medical school after receiving his bachelor’s degree in biology from Kenyon College. After training in and practicing psychiatry, Paul did a medicine residency at the Johns Hopkins University/Sinai Hospital Program in Baltimore. He has been a full-time faculty member at Hahnemann University, Medical College of Pennsylvania (both now Drexel University), Georgetown University and George Washington University. Paul has practiced internal medicine in the Washington area since 1996. He is an Assistant Professor of Medicine (Part-time) at Johns Hopkins University and a Clinical Associate Professor at George Washington University.
Paul’s practice focuses on comprehensive preventative medicine and chronic disease management. He has a particular interest in difficult diagnostic problems and enjoys the role of a classic internal medicine diagnostician. Having practiced for 27 years, he treasures the close relationships he has forged with his patients.
Paul is married, has three grown children and delightful grandchildren. He also collects pens and enjoys reading fiction. One of his favorite pens is a Parker 45 given to him by his grandmother when he was 10 years old. Charlie Lovett is one of his favorite authors and he particularly likes reading books about books.
Location
Dr. Paul A. Silver sees patients in Sibley Hospital, Building A, Suite 460
Certification & Education
Board Certified
Internal Medicine
Residency
Johns Hopkins University, Sinai Hospital
Medical School
Hahnemann University (now Drexel University)
Undergraduate Education
Kenyon College
— INTERNAL MEDICINE
Amy Stone, MD
Biography
*Waitlist Only
Amy Gittleman Stone, MD, has been practicing medicine in our area for over 25 years. Originally from Providence, Rhode Island, she graduated from St. Louis University Medical School in 1997. She moved to Washington DC for her residency at George Washington University Hospital and was selected to be chief resident. She remained at George Washington University in the practice of academic medicine for the next 22 years where she saw patients, taught students and residents, and was involved in various research projects.
During her medical training Dr. Stone realized that her true love was getting to know her patients. She believes that communication and understanding are essential elements to patient care. She practices in a patient centered model where it is a balance between evidence-based medicine and a patient’s needs.
Dr. Stone is married with two college age children. She has one cat and a dog. In her spare time she loves to read books that tell a really good story, listen to music, travel and spend time with friends and family.
Location
Dr. Amy Gittleman Stone sees patients in Sibley Hospital, Building A, Suite 310
Certification & Education
Board Certified
Internal Medicine
Residency
George Washington University Hospital
Medical School
Saint Louis University
Undergraduate Education
Emory University
— FAMILY MEDICINE
James williams, MD
Biography
*Practice Full
Jim is a Washington area native and a board-certified Family Physician. He earned a B.A. in Classical Languages from the University of Virginia, obtained his medical degree from the Medical College of Virginia (now Virginia Commonwealth University) and completed residency at Georgetown University-where he was selected as chief resident.
He then practiced medicine with his father in northern Virginia for 10 years, a practice his father started in 1960. During this time, he served as Associate Clinical Professor of Family Medicine for Georgetown University Medical School, Chairman of the Department of Family Medicine of Potomac Hospital (now Sentara Northern Virginia Medical Center,) Medical Director of the Prince William County Community Health Center, and Trustee of Potomac Hospital. In 2011 Jim came to Sibley as Office Medical Director for the Johns Hopkins Community Physicians group.
In 2014 he left that position to launch Total Primary Care at Sibley Hospital, a solo practice focused on comprehensive primary care for adults with chronic illness. After 8 years of solo work he reorganized TPC to form Complete Concierge Care to welcome other doctors to the practice. Other past roles while at Sibley include Clinical Professor of Family Medicine for George Washington University and Trustee of Iona Senior Services and the Sibley Memorial Hospital Foundation. He has been recognized as a Washingtonian magazine “Top Doctor” perennially since 2013.
Jim and his wife Jenny, a nurse and native Washingtonian, have 4 adult children.
Location
Dr. James Williams sees patients in Sibley Hospital, Building A, Suite 310
Certification & Education
Board Certified
Family Medicine
Residency
Providence Hospital
Medical School
Virginia Commonwealth University Health System
Undergraduate Education
University of Virginia
— OSTEOPATHIC MEDICINE
Andrea Hulse, DO
Biography
*Waitlist Only
Dr. Andrea Hulse, DO has been caring for patients with Johns Hopkins at Sibley for over ten years. Dr. Hulse continues to be drawn to the holistic osteopathic philosophy since graduating from Missouri’s Kirksville College of Osteopathic Medicine. Prior to medical school, Dr. Hulse received her Master’s Degree in Biology from Rutgers. Dr. Hulse was Chief Resident at the Virtua Family Medicine Residency in South Jersey near where she grew up.
Dr. Hulse cares deeply for her patients and keeps them at the center of the healing and therapeutic relationship. She is committed to promoting wellness and healing in the setting of acute and chronic illness. Dr. Hulse values the relationships she has fostered with world class specialists at Johns Hopkins, Sibley and throughout the Washington DC region.
Dr. Hulse and her husband, Paul, have one daughter and a beloved rescue cat. They live nearby in Bethesda. In her spare time, Dr. Hulse can be found gardening, watching her daughter’s sports or walking the Capital Crescent trail.
Location
Dr. Andrea Hulse sees patients in Sibley Hospital, Building A, Suite 460
Certification & Education
Board Certified
American Board of Family Medicine
Residency
Virtua Family Medicine Residency
Medical School
Kirksville College of Osteopathic Medicine
Undergraduate Education
Rutgers University
— LIFESTYLE MEDICINE
Brad Moore, MD
Biography
Dr. Brad Moore is a board-certified internist and nationally recognized leader in Lifestyle Medicine with more than 30 years of experience in academic medicine at The George Washington University. He brings the rigor, credibility, and depth of academic medicine together with the time, access, and personalization that define a concierge practice.
Throughout his career at GW, Dr. Moore has served as a clinician, educator, program builder, and mentor caring for thousands of patients while helping shape the next generation of physicians. He was the founding Director of the Lifestyle Medicine Program at GW Medical Faculty Associates, where he helped integrate evidence-based lifestyle care into clinical practice.
Dr. Moore is dual board-certified in Internal Medicine and Lifestyle Medicine. He specializes in personalized, evidence-based lifestyle care for conditions such as cardiometabolic disease, obesity, diabetes, hypertension, and metabolic syndrome. His approach goes far beyond brief office visits, offering in-depth assessments, thoughtful coaching, and an ongoing physician–patient partnership focused on nutrition, physical activity, sleep, stress management, social connection, and sustainable behavior change.
In addition to his clinical work, Dr. Moore has been deeply engaged in teaching, research, and program development, with a focus on translating lifestyle medicine into real-world clinical practice. He frequently lectures nationally and internationally on longevity, healthspan, and sustainable behavior change, and serves in advisory and leadership roles within the lifestyle medicine and nutrition communities.
Dr. Brad Moore will be offering Lifestyle Medicine in addition to his primary care offering. Dr. Moore integrates evidence-based Lifestyle Medicine with personalized medical care to address the root causes of chronic disease and improve health span. The focus extends beyond disease prevention to improving function, resilience, and overall health span at every stage of life.
We offer two distinct, but complementary services designed to meet patients where they are.
- Concierge Primary Care + Lifestyle & Longevity Care: $5,000 annually
- Lifestyle & Longevity Care: $2,500 annually
Visit the Lifestyle Medicine Page →
Location
Dr. Brad Moore sees patients in Sibley Hospital Medical Building.
Certification & Education
Board Certified
American Board of Internal Medicine, American Board of Lifestyle Medicine
Residency
Hahnemann University Hospital Internal Medicine
Medical School
Hahnemann University (now Drexel University)
Undergraduate Education
Muhlenberg College
