Osteoporosis Assessment Center  

A Comprehensive Center for the Diagnosis and Treatment of Osteoporosis and other Metabolic Bone Diseases

Since 1984, OAC has provided state-of-the-art Dual Energy X-ray Absorptiometry (DXA) bone density testing. We have centers at each of our seven locations. Our centers specialize in the diagnosis, prevention and treatment of osteoporosis and other metabolic bone diseases in both women and men. We were the first to offer DXA testing in the Washington, D.C. metropolitan area. We offer DXA scans by certified technologists and complete DXA interpretation and reports.

Osteoporosis is a disease characterized by bone loss and diminished bone strength resulting in an increase in the risk of fractures. Many factors determine who will develop osteoporosis. The more factors present, the greater your chances are of having or developing the disease. As you review the list of risk factors below, remember that early detection and treatment greatly minimize the effects of osteoporosis. It is a preventable, treatable disease.

  • Gender: Women are four times more likely than men to get the disease, with Caucasian and Asian women most at risk.
  • Age: Women over the age of 45 and those who have experienced menopause are at greatest risk.
  • Calcium Deficiency: A low dietary intake of calcium can cause weakened bone strength.
  • Sedentary Life: Physical activity increases bone mass, a sedentary lifestyle results in lower bone density.
  • Body Size: Petite women are more at risk than heavier women because fat cells are sites for estrogen production.
  • Family History: A familial history of osteoporosis increases risk.
  • Cigarette and Alcohol Use: Cigarettes reduce effective estrogen levels, increasing the bone loss. Alcohol in excess of 2 drinks daily my impair calcium metabolism.
  • Medications: Long-term use of corticosteroids, anti-seizure drugs, excess thyroid hormone, aromatase inhibitors, anti gonadotropin drugs, and antidepressants may accelerate bone loss and worsen osteoporosis.

In a Housecall interview, Dr. Evan Siegel shares his insights on the management and prevention of osteoporosis. By watching the segment, viewers can discover what osteoporosis entails, what causes fractures, how it is diagnosed, and the criteria healthcare providers use to determine treatment options.


Angus B. Worthing - ARAPC


Do you have Osteoporosis?

Does someone in your family have osteoporosis (thinning of the bones) or a history of hip fracture?

Read More

Robert L. Rosenberg - ARAPC


Osteoporosis – who to treat?

The role of FRAX and the new NOF guidelines

Read More 


Diagnosis and Treatment

The Osteoporosis Assessment Center (OAC) specializes in the prevention, diagnosis and treatment of osteoporosis and other metabolic bone diseases. We use state-of- the-art, dual energy x-ray absorptiometry (DXA) technology to measure bone mineral density, currently the most precise of all bone density tests. Your bone mineral density indicates the strength of your bones.

Our DXA reports are unique in that they are crafted by rheumatologists with strong interest in osteoporosis. Attention is paid to all patient risk factors including medical history and important clinical findings. This information is incorporated into the DXA reports to give the referring physician an excellent understanding of the DXA results, fracture risk (FRAX) and insight into clinical management of bone density issues. The latest clinical guidelines and latest clinical studies are used as the basis for our clinical recommendations.

Patient Education

Patient education is an important function at the OAC. Staff regularly provide information to help individuals understand and manage osteoporosis. We maintain a collection of current resources and reference materials for patients and the community. Our Wellness Program offers classes to increase osteoporosis awareness while incorporating exercise to improve bone density, muscle mass, range of motion, balance and posture.

Your DXA Screening 

DEXA, Bone Density testing, Osteoporosis Testing

When you come for your DXA screening, our receptionist invites you to sit in our comfortable reception area and fill out a detailed medical history form. Assistance, if needed is readily available.

DXA screenings are painless and non-invasive. Many patients have even said they find them relaxing. While lying still on a padded table, our DXA technician moves the arm of the equipment to the mid-section of your body. A computer, which is interfaced with the equipment, prints out a color image of your bone mineral density.

During the procedure, which takes about 30 minutes, the technician gathers additional information about your current physical condition and lifestyle. A full report of test results is sent to your primary care physician in approximately one week.

Insurance Coverage

Our receptionist maintains a list of many of the insurance carriers that cover this procedure. Click here to view Participating Insurances. Because carriers frequently change their reimbursement schedules, this list changes regularly. If you are unsure about the terms of your coverage, please call your carrier directly to find out if they cover dual energy x-ray absorptiometry, DXA.

Billing and Payment 

For your convenience, we will file your insurance claim. At the time of service, we will ask you to pay the deductible and co-pay. Please note, you are responsible for all costs not covered by your insurance plan. If you do not have insurance, or if this procedure is not covered, our staff will gladly arrange a payment plan prior to the procedure. We also accept Visa, MasterCard, American Express, Discover, cash, and checks.

Registration & Preparation


Click Here to access the OAC Registration Packet- New Patient


Please complete the forms in advance and bring them with you to your appointment. 

Remember to bring:

  • Insurance card(s)
  • A referral form and co-payment, if required by your insurance plan
  • Your doctor’s prescription
  • Completed registration forms

To prepare:

  • Wear something that does not have metal buttons, zippers or hooks around the waist and hip area.
  • Bra hooks are okay.
  • Avoid taking medication that contains calcium (i.e.: calcium supplements, multivitamins, Tums, etc.).
  • You may take all other medications, including osteoporosis drugs like Fosamax, Miacalcin, Actonel, Evista, etc.
  • Allow at least a two week interval following any previous x-ray study involving contrast (like barium).
  • There is a weight limit to our DXA table. If your weight exceeds 300* pounds, it is possible that only a single scan (of the distal forearm) can be performed. *250 pounds at the Fairfax office


Each of our seven convenient locations is equipped with the state-of-the-art technology and expert clinical technicians to provide you with services.

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