Providing compassionate, high-quality, sustainable GI healthcare in our region.

Magnesium Citrate “liquid” has been recalled due to Microbial Contamination.

Due to the recall, our exam prep instructions have changed. Please call our office at (540) 667-1244 to ask any questions. Want to learn more? Check out the FDA’s announcement regarding the recall here.

Which colon cancer screening method is right for you?

Dr. Richard Nemec from Winchester Gastroenterology Associates discusses the pros and cons of each screening method (the card, the box, and the scope), so you can make an informed choice about your health.

Our Hours

Monday – Friday: 7:30 AM – 4:00 PM

Contact Us

Phone: (540) 667-1244
Fax: (540) 662-1187


Medical Office Building II
190 Campus Boulevard, Suite 300
Winchester, VA 22601

COVID testing is no longer required prior to procedures.

Efforts to Improve the Appointment Scheduling Process

Winchester Gastroenterology is experiencing a higher-than-normal volume of appointment requests. We are committed to providing a great patient experience, and know that experience includes the ease of creating an appointment with your provider.

To improve the scheduling process, we’ve taken the following actions:

1. We’ve hired additional staff in our scheduling department.
We’re working with gGastro, our online patient portal, for patients to be able to schedule their own appointments through the portal. We expect this new feature to be released in 2023.

If your call has not been returned within 2 business days, please email us at We are asking patients to not leave a second voicemail, as this only further bogs down the system and creates more work for our team.

Thank you for your patience as we work diligently to schedule your appointment in a timely fashion. We look forward to seeing you in the office soon.


“The truth is that many of the things that can take our lives are preventable. My doctor and his support staff are, without a doubt, the most caring team in the business. Thank you for caring!”

“Everyone is so friendly and makes you comfortable. Just had an endoscopy and it was over in a flash. Highly recommend!”

“My elderly mother has been a patient for several years. Her providers take such great care of her. They always returned my calls, even the ones for my questions. You have meant the world to us both!”

Share Your Feedback

Winchester Gastroenterology Associates is committed to superior patient care. Thank you for taking the time to share your patient experience by posting a public review or contacting our Office Manager.
Manage Your Healthcare Online with gPortal

With gPortal, current patients can securely communicate with our practice anytime.

You can now request appointments, review clinical results, and send direct messages to their providers through gPortal.

Please contact us if you are not yet registered in gPortal. We’ll be glad to help you access your account.


How can I make an appointment to come to your office?

You can request an appointment on our site or by calling our office at (540) 667-1244.

How do I know if I need a referral for my office appointment?

Many insurance plans, especially HMO’s, require a referral or written authorization from your Primary Care Physician for each visit. Your PCP should be able to tell you if you need a referral but ultimately it is your responsibility to know if a referral or written authorization is required before each visit and to obtain one.

For further questions or concerns regarding your referral please call our office at (540) 667-1244 and ask for our Authorization Specialist.

Do I need to bring anything to my office appointment?

Yes, please bring your insurance card, co-payment owed, medical records that would pertain to your office appointment, and any current medication list or your medications. If you are a new patient to our facility please print out and bring the Patient Intake Forms along with you to your visit with us to help expedite your visit.

Why can't I drive myself home after my procedure?

Since you will be sedated, you will need to arrange for someone to drive you home after the procedure. If you do not have a driver your procedure will be cancelled. You cannot go home by cab unless you have a responsible party with you.

An item I needed for my procedure prep has been recalled. Where can I find alternate prep instructions?

Up-to-date prep instructions can be found on our website here.

What are your current COVID-19 policies?

Up-to-date COVID-19 information for Winchester Gastroenterology Associates can be found here.

What if I need to cancel my appointment?

Should you wish to cancel your office appointment, please notify us at 540-667-1244 at least 24 hours prior to your scheduled appointment time. Less time than 24 hours’ notice will result in a $35 “no show” fee being billed and due prior to rescheduling another appointment.

If you wish to cancel your out-patient procedure such as a Colonoscopy, UGI Endoscopy, ERCP, etc., please immediately notify us at 540-667-1244. (This number is available after hours for messages.) Failure to notify us of your cancellation within 48 hours may result in a charge of $75 to you.