Your Health is What Matters to Us

Our professionally-trained staff is happy to welcome you to our practice. You can learn about our medical and other staff members on the pages of this website. You'll also find our office hours and other important information and services provided.

Our practice is proud to have Dr. Sekohn frequently cited in the Washingtonian and Checkbook listings of best doctors. As a specialists in Gastroenterology and Hepatology, he is dedicated to helping patients with gastrointestinal system diseases and conditions. He performs over 1,000 endoscopies, over 1,000 colonoscopies, and numerous ERCPs each year to help diagnose and manage our patients' conditions. Procedures are performed at Advanced Surgery Center, LLC or Shady Grove Adventist Hospital Outpatient Center. In the event that our patients need to be seen at the hospital, we have privileges at Shady Grove Adventist Hospital.

Information of Interest About Our Practice

Office Hours and Appointments

The office switchboard is open Monday through Friday from 9:00 a.m. to 12:00 p.m. and from 1:00 p.m. to 4:30 p.m. Our physicians are available for emergencies 24 hours a day; 7 days a week.

What to Bring to your Appointment

For your visit, please bring your insurance card(s), recent test results related to your visit and a list of your current medications.


If your insurance plan requires a written referral form, please bring the form to your appointment and give it to our receptionist when you arrive.  If you are unsure as to whether or not you need a referral form, please call the member services number on your insurance card.


Co-payments and balances are collected at the time of service.  We accept cash, personal checks or VISA,Mastercard, American Express.


Languages Spoken

  • English
  • Tagalog (staff)
  • Urdu
  • Hindi
  • Punjabi

New Patients

Please arrive about 15 minutes early for your first visit to complete paperwork. It is necessary for you to complete both demographic and medical history forms prior to seeing your doctor. If you have lab work or recent x-rays relevant to your visit, please bring them as well. For your convenience, our demographic and history forms are available for download on our Forms page.

When you have Questions

We realize you may have questions in between scheduled visits. Our office staff will relay questions to our nurses and Dr. Sekhon, as needed, and get back with you promptly. During office hours, our clinical staff will forward information concerning medical emergencies to our physicians. After hours and on weekends, the "on-call" physician can be reached through the answering service by calling 301-417-9528.

Test Results

We will call you if your test results indicate something needs to be addressed immediately. If you have not heard from our office within three weeks, please call us directly to obtain your results.

Important telephone numbers for in case of emergencies:

Organization Telephone Number
Emergency Services & Fire Department 911
Centers for Disease Control and Prevention 800-CDC-INFO (800-232-4636)

Advanced Surgery Center

fax 301-838-0439


Shady Grove Adventist Hospital 240-826-6000