About Us

Walden Surgical Associates is a comprehensive general surgery practice that provides a spectrum of procedures, including abdominal and intestinal surgery, breast surgery and melanoma surgery. Atif Khan, MD, Elizaveta Ragulin Coyne, MD, and Brian Hinnebusch, MD are skilled general surgeons who are highly-regarded and respected by their colleagues and their patients.

Dr. Khan has advanced and refined his ability to perform laparoscopic (minimally invasive) surgery. This approach is associated with less post-surgical pain and a quicker recovery than traditional surgery. He has a special interest in treating diseases of the anus and rectum, which are often misdiagnosed, causing individuals unnecessary pain.

Dr. Ragulin Coyne has experience performing a wide variety of laparoscopic (minimally invasive) surgical procedures, and has trained in the most up to date methods of laparoscopic practice of small bowel, colon disease, and complex hernias. Dr. Ragulin Coyne also has a clinical interest in treating breast cancer and melanoma patients, and patients with thyroid and parathyroid disease needing surgery. She is currently accepting new patients.

Dr. Hinnebusch is an accomplished general and colorectal surgeon who specializes in performing advanced procedures, from the most current reconstructive surgery, such as neo-rectum surgery, to minimally invasive surgery. Dr. Hinnebusch’s clinical interests include colorectal cancer, diverticular disease, inflammatory bowel disease—Crohn’s and ulcerative colitis—rectal prolapse and benign anorectal conditions.

Each of the surgeons are known for communicating clearly and effectively and for being available to their patients. Both physicians strive to explain the procedure and give their patients the time they need to feel comfortable and earn their trust.

The surgeons are supported by a dedicated office staff who share the same philosophy of patient care. They work together to coordinate your surgery or appointment and, see that everything goes smoothly.

Walden Surgical Associates is based at Emerson Hospital, where all surgeries are performed in the impressive Clough Surgical Center. Surgery at Emerson combines the most current technology with the personal touch that patients appreciate.

Dr. Atif Khan
Dr. Elizaveta Ragulin Coyne
Dr. Brian Hinnebusch

Meet Our Staff