Fairfax: 703-573-9800


Regular Office Hours
Regular Office Hours (Both Locations):
8:00 AM to 1:00 PM and
2:00 PM to 5:00 PM
Monday through Friday

Call-In Hours: 8:00 AM to 8:45 AM
Special Extended Hours
Special Extended Hours (Both Locations):
Tuesday, Wednesday, and Thursday
8am to 8pm
Saturday Hours
Ballston Office Only:
Saturdays 8:00 AM to 12:30 PM
Walk-ins Always Welcome
Same-day day appointments and acute illness
General Internal Medicine encourages all of our patients to contact us if they need a same day appointment or have an urgent acute illness. We are available during our regular business hours to see you for an appointment or advise you about your care. In addition, we work closely with Ballston Urgent Care, our affiliated urgent care and walk in center which is located in our Ballston office building. Their hours of operation are 7:30 AM until 8 PM Monday through Friday and 8:00 AM until 4:00 PM on Saturday. Since we are affiliated, your medical record information is available for continuity of care. For more information, visit

For information regarding contacting one of our physicians for an after hours emergency please see our After Hours and Emergency policy.

If you believe you are having a life-threatening medical emergency call 911 or go to the nearest emergency room.
Ballston Office (Map it)
3833 North Fairfax Drive #200
Arlington, VA 22203
Phone: 703-525-8863
Fax: 703-525-2387
Fairfax Office (Map it)
3022 Williams Drive #300
Fairfax, VA 22031
Phone: 703-573-9800
Fax: 703-573-2959
Billing Office
If you have any billing questions, please
Contact Us
Billing Office Address
General Internal Medicine
P.O. Box 102
Winchester, Virginia 22604-0102


“We want our patients to feel well-cared for, from the moment they enter our door to the time they leave… and to leave satisfied that they received exemplary care.”
- Dr. Mary Major, Washingtonian Top Doctor and Co-Founder of GIMG

General Internal Medicine Group, P.C., (GIMG) is committed to providing our patients with high quality, comprehensive, patient-centered care with the goal of optimizing health and well-being. Our team of providers and support staff cares about our patients and strives to offer every one the access and control they need over their healthcare experience, in a warm and friendly environment.

GIMG is a full-service practice that serves as your complete "Medical Home" by providing you with:
  • Quality preventive care
  • Comprehensive initial evaluations for any acute or chronic problems
  • Personalized management and coordination of all of your medical care needs
  • In-house specialists and services
  • Visit NCQA's website for more information on Patient Centered Medical Homes.

We offer unique benefits designed to save you time, work with your schedule, and increase your access to the medical information you need, such as our: More...

What's New

New Patient Services Department
We are now offering our patients a convenient and efficient way to communicate with us. We want to hear your questions, suggestions, or concerns about the service we provide to our patients. Our new patient services department has been set up just for this purpose. You can call The Patient Services department at 571-350-9030 or click on the Patient Services link on the top right of the site and follow the directions to send a secure email. Please note that medical questions regarding your health care, appointment scheduling, and other routine questions should continue to be directed to the office phone numbers.

Our Providers
Arthur A. Rubin, MD
  • Arthur A. Rubin, MD
  • Dr. Arthur A. Rubin, a New Jersey native, attended the University of Pennsylvania. He graduated from Georgetown Medical School and then studied psychiatry for 18 months at Georgetown University Hospital before going on to an internal medicine residency. After becoming board-certified, Dr. Rubin worked for a California HMO as an internal medicine consultant. Being an Easterner at heart, Dr. Rubin returned to Virginia and opened an internal medicine practice in 1978. He and Dr. Major became associates and moved to our Arlington location in 1983. Dr. Rubin has been President of the Virginia Society of Internal Medicine and the Northern Virginia Academy of Medicine and a former board member of the Medical Society of Virginia Peer Review Organization. Dr. Rubin has been an advisor, speaker and consultant to Blue Cross/Blue Shield Health Plans, HCFA seminars, and hospital systems on issues of quality care and utilization of medical services. He was a founder and medical director of NCPPO, a local health plan. Dr. rubin also founded and acts as managing director of MDxL, a local hospitalist physician management company. Dr. Rubin is married to Beth York, a lawyer specializing in estates and trusts planning, and has two daughters, Margaret and Amy. Dr. Rubin resides in McLean and hobbies include traveling, skiing, reading, and softball.

Brickte L. DeBass, MD
  • Brickte L. DeBass, MD
  • Dr. Brickte DeBass is a board-certified internist. She grew up in College Park, Maryland, and received her undergraduate and medical degrees from the University of Maryland. She then moved north to tranquil and chocolaty Hershey, PA, where she completed her internship and residency in Internal Medicine at Penn State University Medical Center. Dr. DeBass moved to Arlington in 1998 and worked for Internal Medicine Associates until joining our practice in August 2001 in the Fairfax office; she moved to our Arlington office in May 2006. She enjoys yoga, arts and crafts, movies, and interesting restaurants.

Mary J. Major, MD
  • Mary J. Major, MD
  • Dr. Mary Jane Major is a board-certified internist. She was born in Connecticut and attended Barnard College in New York City and Albany Medical College. Dr. Major completed her training in internal medicine at George Washington University and practiced at the Falls Church Medical Center for three years until she ran into Dr. Rubin, and it's been downhill (or uphill?) ever since. She has two children, Jeffrey and Lindsey, and resides in Arlington.

Gary R. Fender, MD
  • Gary R. Fender, MD
  • Dr. Gary R. Fender joined our group in October 1990. He grew up in northern New Jersey and is a Phi Beta Kappa graduate of Boston University. He attended the University of Medicine and Dentistry of New Jersey-New Jersey Medical School, graduating in 1979. He remained in the Washington area after completing his postgraduate training in internal medicine at George Washington University. Dr. Fender was board-certified in internal medicine in 1982 and has practiced in Northern Virginia since July 1982, first in affiliation with the Anderson Clinic in Arlington and after September 1984 with another medical group in Arlington and Springfield. He has a special interest in preventive medicine.


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