For our established patient: If you are sick and can’t find any appointment online, please call the office and indicate that you are SICK. We will do our best to book an appointment for you on the same day or the next.
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About One Health Medical Care

Mingliarti Tjahjana, MD, is an internist and primary care physician at One Health Medical Care in Reston, Virginia. Dr. Tjahjana is proud to offer her patients primary care services along with expanded services like obesity medicine and care for anxiety and depression. She offers a wide range of care, including treatments for diabetes, fibromyalgia, migraine headaches, weight loss, dermatology, and preventive care. In addition to Reston,Dr Tjahjana serves patients from many surrounding areas, including Herndon, Sterling, Great Falls, McLean, Fairfax, Ashburn, Leesburg, Vienna, Chantilly, Centreville, Manassas, and Oakton.

Dr. Tjahjana, or Dr. T, as her patients fondly call her, prides herself on creating lasting relationships with her patients as she guides them through every stage in life. Dr. T understands that health issues can be frightening or confusing, which is why she takes the time to work with each patient individually, making sure they fully understand the treatment, diagnosis, and prevention process. This is helped by the fact that she is fluent in several languages, including English, Spanish, Mandarin Chinese, and Indonesian.

Certified by American Board of Internal Medicine and American Board of Obesity Medicine, Dr. Tjahjana received her medical degree from Universitas Padjadjaran in Indonesia, and completed her residency at Interfaith Medical Center in New York City. Dr. Tjahjana has also performed endocrinology research with the MedStar Research Institute in Washington, DC.

Dr. Tjahjana and her husband are proud parents of two active boys. She enjoys traveling, zumba, yoga, music, gardening, and cross-cultural cuisine.

She is currently accepting new patients and invites you to book an appointment online at One Health Medical Care today.


Words from our patients

  • 5 star

    "Honestly - this doctor is such a caring lady. She's really detailed with your check-up and makes sure she addresses all of your concerns and questions."

    Jasmin P.
  • 5 star

    "I have known Dr. T for the last 9 years. I appreciate her attention to detail and thorough examinations. I highly recommend her."

    Rama N.
  • 5 star

    "Thank you Dr. Tjahjana for taking such good care of me when I am not feeling well. She has amazing bedside manner and medical expertise."

    Stacey S.
  • 5 star

    "I like when doctors are measured and communicate clearly and directly. All of these things, I got from Dr. T. I have already referred two people. I'm glad I found her."

    Alexa A.
  • 5 star

    "She has been really good doctor to our family, and is hands-down one of the best medical doctor I've ever seen."

    Imelda K.