About the Provider

Leonardo Claros, M.D., FACS, FASMBS

Dr. Leonardo Claros serves as Section Chief of Bariatric Surgery and Medical Director for the Weight Management Center at St. Luke’s University Health Network, a designated Bariatric Center of Excellence by the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program.

Named a top surgeon by the Guide to America’s Top Surgeons, Dr. Claros earned his medical degree from the Universidad Mayor de San Andres in La Paz, Bolivia, one of the most prestigious medical schools in the country.
After graduating first in his class and earning intern of the year recognition, he subsequently did a research fellowship in basic science at the Beth Israel Deaconess Medical Center and completed his surgical residency training at Harvard Medical School’s Massachusetts General Hospital and Beth Israel Deaconess Medical Center.
Dr. Claros also completed a fellowship in minimally invasive surgery and bariatrics at Tufts-New England Medical Center and is the recipient of a number of excellence in teaching awards from Harvard and Tufts Medical Schools.

Currently, Dr. Claros has performed over 4,800 bariatric cases. With excellent outcomes that consistently rank him among the best surgeons in the country. He is a national and international speaker and surgical preceptor.

He was the first surgeon in the entire Lehigh Valley to perform a robotically assisted Gastric Bypass and Sleeve Gastrectomy.

He offers many surgical options including laparoscopic gastric band placement, sleeve gastrectomy, gastric bypass, intra gastric balloon, duodenal switches, robotically assisted bariatric operations, revision surgery, diagnostic and therapeutic endoscopic procedures as well as innovative approaches as the single incision surgery.

Dr. Claros is a Fellow of the American College of Surgeons, a Fellow of the American Society of Metabolic and Bariatric Surgery, a designated bariatric surgery center of excellence surgeon and is board certified by the American Board of Surgery.

Dr. Claros can be heard weekly on the “La Mega” radio in Allentown, Pennsylvania where he serves as the host for “Hablando con su Doctor”, St. Luke’s weekly Spanish language health information program.

He is currently actively involved in clinical research and academic teaching, a passion that he has developed over the years having received multiple teaching awards.

Surgeries Performed

•Bariatric Endoscopy Procedures •Follows Other Surgeons' Patients •Gastric Banding •Roux-en-Y Gastric Bypass •Intragastric Balloon •Laparoscopic BPD w/ Duodenal Switch •Laparoscopic Roux-en-Y Gastric Bypass •Revision/Conversion of Prior Procedure •Single Anastomosis Duodeno-ileostomy •Laparoscopic Sleeve Gastrectomy 


Allentown, PA USA