Mercy Clinic General Surgery - Mercy Plaza

4140 W. Memorial Road
Suite 621
Oklahoma City, OK 73120
Fax: (405) 749-4234
Hours of Operation:
Monday-Friday: 8 a.m. - 5 p.m.
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Our highly trained, board certified surgeons are experienced to provide you with the best surgical options for your particular case.  Here's a sample of our credentials:

  • Dr. Ellis is fellowship trained in surgical oncology and the only surgical oncologist in the metro area who has completed a fellowship certified by the Society of Surgical Oncology.
  • Dr. Elizabeth Hooper is fellowship trained in bariatric surgery and has a special interest in doing bariatric surgeries.
  • Dr. Joseph Buendia, Dr. Stephen Magness and Dr. Elizabeth Hooper have extensive experience performing robotic surgeries for those conditions that are best treated with this less invasive option.

New Procedure Offered for Acid Reflux Sufferers "GERD"

Do you suffer from acid reflux?  You may be a candidate for the LINX® Reflux Management System, a less-invasive option for when medication no longer provides adequate control of your symptoms. 

Drs. Joseph Buendia and Steven Magness were the first physicians in the state to be trained in this procedure and are offering it to patients in Oklahoma City.  Mercy Hospital Oklahoma City was the first hospital to make this option available to Oklahoma.  

The LINX® System is a small, flexible band of magnets that keep the stomach valve closed to prevent acid reflux.  Swallowing forces the beads to separate and allow food to pass.  The magnetic band subsequently closes the valve. 

Most patients are eating after surgery and go home the same day. 

Curious to know more?  Talk to your doctor or call our office at (405) 749-4231.

Don’t forget that as a Mercy Clinic patient, you’ll have access to MyMercy, our free online service that makes it easy to view your test results, make appointments and stay in touch with your doctor.

Treatments and Procedures

Our physicians provide surgical procedures and treatments for a variety of conditions, including:

General Surgery

Endocrine Surgery

Oncological / Tumor Surgery

Bariatric Surgery (weight loss surgery)

Robotic Surgery with Dr. Buendia

Introducing Dr. Buendia

Robotic Surgery with Dr. Buendia:

Our Providers

Randal Scott Baker, MD, Mercy
General Surgery
Mercy Clinic
Joseph Carlo Buendia, DO, FACOS, MPH, Mercy
General Surgery
Mercy Clinic
Christian Matthew Ellis, DO, Mercy
General Surgery
Mercy Clinic
Elizabeth Ann Hooper, MD, Mercy
General Surgery, Bariatric Surgery
Mercy Clinic
Steven Michael Magness, MD, Mercy
General Surgery
Mercy Clinic