MedStar St. Mary’s Outpatient Pavilion

Printable Map

Located just behind the main hospital building, the MedStar St. Mary’s Hospital Outpatient Pavilion houses our Cancer Care & Infusion Services, Specialty Physicians at St. Mary’s, Outpatient Imaging, Outpatient Lab, Health Connections, and Marketing, Public Relations, and Philanthropy office.

Opened in 2011, the two-story building is beautifully designed and offers a wide range of services and leading-edge technologies to better serve patients promptly and conveniently.

Read below for more information. 


First Floor

MedStar Georgetown Cancer Institute

MedStar Georgetown Cancer Institute (MGCI) delivers the highest quality of care in a welcoming, supportive environment. As MGCI, our team at MedStar St. Mary’s Hospital offers outstanding care to patients treated for a wide variety of cancers as well as convenient access to the latest therapies, research, and clinical trials through a diverse group of nationally and internationally renowned specialists. With 11 treatment bays, MGCI provides both inpatient and outpatient services with most chemotherapy needs able to be met right here in our community.

Call 301-475-6070 for more information.

Available services:

  • Biotherapy and chemotherapy
  • Blood and blood product transfusion services
  • Bone marrow aspirations and biopsies
  • Counseling and support groups
  • CT simulations
  • Dietician services
  • Image Guided Radiation Therapy (IGRT)
  • Intravenous hydration and antibiotics
  • Pain and symptom management
  • Radiation
  • Rehabilitation
  • Venous access device management

Outpatient Imaging

Services devoted primarily to diagnostic imaging in this facility include:

  • 1.5 Tesla MRI
  • 20 Slice CT Scanner
  • PET/CT Scanner (mobile)
  • Radiology/Fluoroscopy Systems
  • Ultrasound

To schedule an appointment with a radiology specialist, call 301-475-6399. To contact someone about services and patient information, call 240-434-7317.

Note: Nuclear medicine and inpatient imaging continue to be conducted in the main hospital building.

Women's Health Services 

The Women's Health Services in the Outpatient Pavilion maintains a separate suite of rooms within Outpatient Imaging. To schedule an appointment for one of the below services, call 301-475-6399. For more information, call 240-434-7317.

  • Digital Mammography
  • Breast Ultrasound
  • Breast MRI
  • Galactogram/Ductography
  • Lymphoscinitigraphy (Nuclear Medicine)
  • Steretactic Breast Biopsy
  • Breast Needle Localization
  • Ultrasound Breast Core Biopsy
  • Breast MRI Biopsy 
  • Bone Densitometry
  • 3D/4D Ultrasound
  • Childbirth outreach services through Health Connections

Second Floor

Specialty Physicians at St. Mary's 

The Specialty Physicians suites in the Outpatient Pavilion include offices for our specialty physicians as well as exam and procedure rooms. Our partners with MedStar Health utilize this space on a rotating basis to bring high-quality specialty care closer to home.  The following services are currently available:

MedStar Heart and Vascular Institute

Please call 240-434-4072 or click here to schedule an appointment with Dr. Flatau. Learn more about our vascular services and the MedStar Heart and Vascular Institute

Bariatrics at MedStar St. Mary's Hospital

Please call 240-434-4088 to schedule an appointment. Learn more about general surgery services at MedStar St. Mary's.

Neurology at MedStar St. Mary’s Hospital

Please call 240-434-7929 to schedule an appointment. Learn more about neurology services at MedStar St. Mary's. 

Health Connections 

Health Connections is the community outreach department at MedStar St. Mary's Hospital. It offers seminars and support groups for all ages with two large Multipurpose Rooms (A & B) for community Classes and Events. If you are interested in attending a class or would like more information, please call 301-475-6019 for more information or to speak with one of our associates.

  • Diabetes management
  • Exercise, weight loss and nutrition management
  • Smoking Cessation 
  • Senior wellness events
  • Support groups 
  • Lactation counseling 

Marketing, Public Relations, and Philanthropy