Dr. Darren Tishler

Bariatric Surgeon

Dr. Darren S. Tishler currently serves as the Director of Metabolic and Bariatric Surgery at Hartford Hospital, Chief of ...More Metabolic and Bariatric Surgery for Hartford Healthcare and Associate Professor of Surgery at the University of Connecticut School of Medicine.Dr. Tishler received his medical education from The Chicago Medical School, and completed his fellowship in minimally invasive and bariatric surgery at the University of Alabama-Birmingham. Dr. Tishler’s current research interests include studying the response of medical conditions in the morbidly obese to various surgical treatment options, the role of robotics in bariatric surgery, the study of nutritional abnormalities after weight loss surgery, and the long-term surgical management of the post-bariatric surgery patient. Hartford Hospital’s large volume practice allows for multiple prospective and retrospective research projects, which often utilize multidisciplinary collaboration across specialties such as genomic medicine and functional neuroimaging. Every day, Dr. Tishler is faced with helping patients address the challenges of weight loss surgery and to help them choose the best possible operation, as it is critically important to improve our understanding of the effective manage of the surgical weight loss patient. ...Less

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Recent Articles


Why This Bariatric Surgeon Treats Obesity Like Cancer

I’ve spent my entire career studying and treating obesity.  I have found that obesity, like many other diseases, is extremely complex and there is no single treatment that will work for everyone. In our practice, we have been fortunate to follow patients for many years after they’ve had weight loss...

Tammy Ratacliffe

How She Maintains 120-Pound Weight Loss Since Gastric Bypass

By Margaret DeMarino By age 32, Tammy Ratcliffe weighed 240 pounds and suffered from eight medical conditions including diabetes and high blood pressure. Overweight most of her life, Ratcliffe remembered being weighed in a nurse’s office in third grade and told she was 120 pounds. “I weighed so much more than everyone,”...

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Obesity Summit, With its Focus On Research, a First for State

MASHANTUCKET — More than 20 nurses, surgeons, physicians and other health providers from Hartford HealthCare attended the first Obesity Summit Jan. 25-26 presented by the Connecticut State Chapter of the American Society for Metabolic and Bariatric Surgery (CT-ASMBS) at Foxwoods Casino. The conference, the first of its type in Connecticut,...

Man on bike trail.

Dr. Darren Tishler: Is Weight Loss Surgery for You?

Here at Hartford HealthCare, we are taking a new approach to bariatric, or weight loss, surgery.  In the past, we would often look at any diet, exercise program, or weight loss surgery procedure in terms of how much weight we could expect a patient to lose. In fact, most overweight...

Two feet on treadmill.

Efficient Exercise: Are You in One of These Four Zones?

Last month, I wrote about the importance of aerobic (cardio) exercise — the type of exercise that gets your heart beating faster.  (See the column here.) But a heart that is beating faster does not necessarily mean that you are burning more calories or even helping to build your endurance. ...

Woman on scale.

Exercising For Weight Loss: What I Tell My Patients

There is one simple rule when it comes to weight loss: To lose weight, you need to burn more calories than you take in.  The only real way to burn these calories is through exercise.  As a bariatric surgeon, I encourage each patient to exercise.  However, to be effective, the...