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Thomas J. McNamara, MD

Internal Medicine

10215 Fernwood Road Suite 50, Bethesda, MD
5/5 | 13 reviews
Hospital Affiliations
Suburban Hospital, Shady Grove Adventist Hospital
Dr. McNamara

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This physician has limited availability and may have a Waiting List. Fill out the form to receive more information about Dr. McNamara.
MDVIP Annual Membership Fee
MDVIP’s annual fee covers the Wellness Program and generally can be made in quarterly, semi-annual and annual payments.
Quarterly
$575.00*
Semi-Annual
$1,150.00*
Annual
$2,300.00*
*MDVIP respects your privacy and will only use your personal information as stated in our Privacy Policy and Terms of Use. By providing your number, you are giving your express written consent to MDVIP to receive telemarketing calls or text messages using an automatic phone dialing system or an artificial or prerecorded voice at any number you may provide to MDVIP. You acknowledge that your consent to receive these communications is not required and that you may call the number listed above to get more information or enroll. You can contact MDVIP any time if you wish to stop receiving such messages by replying "STOP" via text or calling 1-877-764-2340. Text "HELP" for help. Message frequency may vary. Message/data rates may apply.

About Thomas J. McNamara, MD

My goal as your private doctor is to partner with you and to create a personalized healthcare plan to effectively treat your current health problems and to prevent new ones. I understand and celebrate that internal medicine patients have specific medical needs and desire a unique path to better health. I will work with you each step of the way to assist you with making informed decisions toward achieving your goals – whether it is running your first marathon, improving your nutrition or reducing your use of medication.

With nearly 25 years of practicing medicine in the community, I have relationships with many specialists to help with you and your unique needs. I may be an internal medicine doctor, but I also have interests in cardiovascular disease, diabetes, hypertension and preventive medicine. I have gone from a physician that was trained to cure your illness and tackle your diseases to one who recognizes that true health comes from preventing disease from developing.

Residency

University of Cincinnati
Cincinnati, OH
Internal Medicine 1982-1984

Internship

University of Cincinnati
Cincinnati, OH
1981-1982

Medical School

Georgetown University School of Medicine
Washington, DC
Doctorate of Medicine 1981

Undergraduate

The Catholic University of America
Washington, DC
Bachelor of Arts, Biology 1975
Sigma Xi Honor Society

Diplomate, National Board of Medical Examiners

Suburban Hospital
Shady Grove Adventist Hospital

Associate Professor, Georgetown University School of Medicine, Faculty in Clinical Medicine 1984-present

Top Doctor, Washingtonian Magazine 1998-present
Top Doctor, Checkbook Magazine 2010-present

Maryland

Benefits of joining Dr. McNamara's practice with MDVIP

MDVIP Wellness Program
Expect comprehensive screenings and tests and a custom wellness plan designed for you.
Better Doctor-Patient Relationship
97% of MDVIP members are satisfied with their relationship (vs 58% in traditional PCP).
Same/Next-Day Appointments
See Dr. McNamara quickly and take your time during each appointment.
Reachable 24/7
Reach Dr. McNamara by phone after-hours and on weekends.
Smaller Practice Size
MDVIP practices are smaller than most primary care practices, which means your doctor has more time to help you.
Your Dedicated Doctor
See Dr. McNamara when you go to the office — not someone else like a nurse practitioner or physician assistant
Travel Benefits
If you need urgent care while traveling, your physician can help arrange your care with a local hospital, pharmacy or doctor.
Medical Centers of Excellence
For patients who need care beyond what is available locally, MDVIP can connect your doctor with specialists at some of the country’s leading medical institutions
Better Health Outcomes
Members have better control of chronic conditions like type 2 diabetes, high cholesterol and hypertension.

The office of Thomas J. McNamara, MD

Primary Office
10215 Fernwood Road Suite 50
Bethesda, MD 20817
866.696.3847
Get Directions
Hours
Mon 8:00 AM - 4:00 PM
Tue 8:00 AM - 4:00 PM
Wed 8:00 AM - 4:00 PM
Thu 8:00 AM - 4:00 PM
Fri 9:00 AM - 4:00 PM
Sat Closed
Sun Closed
I've been with Dr. McNamara since before he was with MDVIP and now his care is even stronger. He is thorough, complete, caring, available, wholistic, and more. When I had COVID he called me 3 times during the week to check on me. My wife is with MDVIP in another practice and is very dissatisfied for the same reasons I am satisfied. Unfortunately few can afford a concierge service such as…
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Steve
April 2, 2024
Dr. McNamara has given me his Cell Phone No. which is highly unusual for a doctor. He always calls me back promptly. I am highly thankful to him.
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jatinder
March 15, 2024
I’ve known and been a patient of Dr. McNamara since before he joined MDVIP. Glad I have had him as my doctor and hope to continue being his patient as long as possible.
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Kevin
March 5, 2024
I've been a patient of Dr. McNamara's for many years. I have some unusual and difficult medical issues, so high-quality medical care is essential to me. Dr. McNamara knows his stuff and has always provided me with excellent care. He knows that medicine is not a "one size fits all" endeavor and recommends alternatives, listens to my questions and concerns, and explains medical…
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Dale
February 13, 2024

Reviews from the web

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07/14/2025 – Gregory Taylor
Best doctor!
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03/13/2024 – Janet Goldhill
Dr. McNamara is an extraordinary physician! From his in-depth medical knowledge (consistently keeps up with the latest research), his diligence in following up on all issues, to his consummate professionalism and his compassionate bedside manner! I feel fortunate to have Dr. McNamara as my Primary Care physician!
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03/13/2024 – Nancy Hadad
Dr. McNamara is a thorough, caring, knowledgeable physician and is up to date on all research etc that affect my moms care. He explains everything so well and is always there for my mom throughout all of her many health problems. Thank you Dr McNamara for all of the amazing support and care you’ve provided over all these years!
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02/15/2024 – Jay Kaufman
An amazing knowledgeable physician that truly cares about his patients.
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02/13/2023 – regina dwyer
Dr. McNamara has been my physician for at least 20 years. He is has good judgement. He is also thoughtful, caring and responsive to his patients. He is available to his patients except when he is traveling. I am glad he is my doctor.
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02/19/2020 – Tim Cochran
Dr. McNamara has been my primary physician for close to 40 years and has provided me with an exceptional level of care continues from the day I asked him to be my primary care physician through to the present. I very fondly recall the day back in 2016 when my Doctor, along with a group of other fine physicians who had signed on to move their practices under MDVIP explained its concept and value to a packed auditorium of current patients including myself. During the Q&A period, a lovely, elderly lady, who happened to be Dr. McNamara’s patient, asked him if with this change - he would still be by her side when she passed. You literally could have heard a pin drop in the hall when without hesitation Dr. McNamara simply said, “Of course I will be with you - I couldn’t be any place else.” He is that man, and has Ased my continued respect, admiration and friendship to this day. The Good Doctor's exhibited competence, dedication and caring empathic demeanor, not to mention his keen sense of humor still amaze me and affirms my choosing him as my personal physician some 40 years ago. As I, not of softly, venture into what we call the Twilight Years -- here's a sincere thank your continued Professionalism and Friendship!
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02/07/2020 – Joseph and Mary Ann Petruccelli
Dr. McNamara provides excellent medical care and education about health, wellness and illness. He cares about the whole person and always takes the time to explain normal physiology, helping you understand symptoms and symptom management. Thanks Dr. McN for 25 years of top notch care! You are the best!
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03/03/2019 – SHARON WELDON
Excellent compassionate care for long term as well as acute medical issues.
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02/23/2019 – Luigi De Luca
Very caring, intelligent, well prepared
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02/09/2019 – Elaine Rial
Dr. McNamara is extremely knowledgeable and conveys a personal interest in my total wellbeing. It is evident that he stays current on developments in his profession and weighs the pros and cons before implementing in his practice. He judiciously prescribes medication but prefers patients to modify behavior when behavior modification would achieve the desired results. All physicians should strive to be like Dr. McNamara!

Frequently Asked Questions

Doctors who operate in the MDVIP models typically see far fewer patients than traditional primary care doctors. That gives them more time to develop deeper doctor-patient relationships that can lead to better outcomes. They can also offer conveniences that most primary care doctors can’t, including same- and next-day appointments. They’re available after hours for urgent matters. And they have time to focus on prevention. That focus begins with the MDVIP Wellness Program, which patients pay for with their annual membership fee.

Most MDVIP-affiliated primary care practices accept insurance (your physician can tell you whether they accept your specific insurance plan). Your annual fee pays for preventive care medical services that insurance usually doesn’t cover (e.g., advanced diagnostic testing and screenings). Your MDVIP-affiliated physician will continue to bill your insurance and charge copays, co-insurances and deductibles as he or she currently does for other medical services like sick visits.

MDVIP makes wellness and prevention easier by providing your physician with innovative tools and technology. MDVIP supports your physician’s practice and seeks to eliminate barriers to a positive healthcare experience. Your doctor will determine whether and how to incorporate these tools at his/her discretion.

**The message above is a personal introduction from the physician, intended to help you get to know them better. The views, opinions, and statements expressed above are solely those of the physician and do not necessarily reflect the views or positions of MDVIP. This content is intended for general background purposes only and does not constitute medical advice, diagnosis, or treatment. Any mentions of expertise or quality of care are personal expressions and should not be interpreted as guarantees of performance or outcomes.