Thomas Roshek, MD, FACS, DABS-FPMBS


Dr. Thomas Roshek is board certified in General Surgery and is fellowship trained in advanced laparoscopic and bariatric surgical procedures. His interests include the treatment of obesity with weight loss surgery, repair of abdominal and groin hernias/complex abdominal wall reconstruction, treatment of gastroesophageal reflux disease and heartburn, and surgical treatment of gallbladder disease.

  • Dr. Roshek has the highest credentials in bariatric surgery and is certified by the American Board of Surgery (ABS) with the Focused Practice Designation (FPD) in Metabolic and Bariatric Surgery (MBS).
  • Trained and certified as a da Vinci Robot surgeon.
  • Texas Monthly Super Doctors: Rising Star for 2014-2016 and Super Doctor for 2018-2023.
  • One of D Magazine’s “Best Doctors in Dallas for 2013, 2017, 2019-2023.
  • One of D Magazine’s Best Doctors in Collin County for 2013, 2016-2018, 2020-2023.
  • Texas Monthly Super Doctors: Rising Star for 2014-2016 and Super Doctor for 2018-2021.
  • Voted to Living Well Magazine’s “Top Docs” list in Bariatric and General Surgeon category for 2019-2023.
  • The Nicholson Clinic team of surgeons were voted Living Magazine’s Best of Three-Eighty North for 2016 & 2017, Best of Frisco/Plano for 2020-2023, Best of McKinney/Allen for 2022, Best of Prosper/Celina for 2022, and Best of Richardson/Murphy for 2022-2023.
  • Society of Laparoendoscopic Surgeons Resident Achievement Award for 2009.
  • Tufts University School of Medicine Excellence in Teaching Award.

Dr. Brian Long joined the Nicholson Clinic in 2015. He specializes in laparoscopic bariatric surgery, performing sleeve gastrectomy, gastric bypass, adjustable gastric banding and revisional procedures. He also has extensive experience in minimally invasive general surgical procedures including abdominal wall hernia repair, gallbladder surgery, gastric reflux procedures and colon and intestinal surgery.

  • Dr. Long has the highest credentials in bariatric surgery and is certified by the American Board of Surgery (ABS) with the Focused Practice Designation (FPD) in Metabolic and Bariatric Surgery (MBS).
  • Trained and certified as a da Vinci Robot surgeon.
  • One of D Magazine’s “Best Doctors” in Dallas, 2023.
  • One of D Magazine’s “Best Doctors” in Collin County, 2019-2023.
  • Voted to Living Well Magazine’s “Top Docs” list, named as a winner in both the Top Bariatric Surgeon category and the Top General Surgeon category for 2019-2023.
  • The Nicholson Clinic team of surgeons were voted Living Magazine’s Best of Three-Eighty North for 2016 & 2017, Best of Frisco/Plano for 2020-2023, Best of McKinney/Allen for 2022, Best of Prosper/Celina for 2022 and Best of Richardson/Murphy for 2022-2023.

Dr. Nicholson opened the Nicholson Clinic for Weight Loss Surgery in North Texas more than 20 years ago. Today, the Nicholson Clinic is the country’s premier destination for weight loss. Dr. Nicholson has helped more than 25,000 patients, coming from all 50 states and 11 countries. But his impact goes beyond his patients and their successful outcomes. His contributions to the field of bariatrics make him one of the most prominent figures in the field.

  • Dr. Nicholson has the highest credentials in bariatric surgery and is certified by the American Board of Surgery (ABS) with the Focused Practice Designation (FPD) in Metabolic and Bariatric Surgery (MBS).
  • One of D Magazine’s “Best Doctors” in Dallas, 2007-2016, 2018, 2020-2023.
  • One of D Magazine’s “Best Doctors” in Collin County, 2011-2016, 2018-2023.
  • Voted to Living Well Magazine’s “Top Docs” list, named as a winner in both the Top Bariatric Surgeon category and the Top General Surgeon category, 2019-2023.
  • Best Bariatric Surgeon by Living Magazine Readers’, 2014-2016, 2018.
  • Dr. Nicholson and his team of surgeons were voted Living Magazine’s Best of Three-Eighty North for 2016, 2017, Best of Frisco/Plano for 2020-2023, Best of McKinney/Allen for 2022, Best of Prosper/Celina for 2022 and Best of Richardson/Murphy for 2022-2023.
  • Author of Weight Loss Surgery: The Real Skinny and numerous weight loss surgery articles. Currently authoring his third book.

Dr. Nicholson trains doctors from around the world and consults on new products and techniques to improve patient experience and outcomes. As a true expert in the industry, Dr. Nicholson holds two patents on medical devices, is a published author of books and numerous articles and has conducted multiple TV appearances on the subject of weight loss surgery. Recognized by patients, peers and medical experts, he is honored to have played a role in helping so many people overcome obesity and reclaim their health.

Dr. Nicholson leads a team of world-class surgeons and specializes in multiple advanced, minimally invasive bariatric and abdominal surgery procedures including: sleeve gastrectomy, gastric bypass, LAP-BAND®, gastric balloon and revisional bariatric surgery. In addition to weight loss, his patients have experienced a reversal of type 2 diabetes, high blood pressure, heart disease, arthritis and other weight-related illnesses. Dr. Nicholson and his team also perform gallbladder removal, hiatal hernia repair to cure acid reflux, abdominal wall hernia repair and abdominal wall reconstruction.

Dr. Nicholson is board certified in General Surgery by the American Board of Surgery. He is always on the forefront of the latest technology, expanding his expertise in multiple advanced procedures in the belief that there’s no such thing as a one-size-fits-all approach to weight loss surgery.

A native of Texas, Dr. Nicholson began undergraduate studies at UT Austin and pursued his MD at University of Texas Medical Branch at Galveston before completing his residency at University of Texas Southwestern Medical Center at Parkland Memorial Hospital, where he first became interested in advanced laparoscopic and weight loss surgery procedures. He now practices bariatric and abdominal surgery in the Dallas–Fort Worth metroplex, and has been featured multiple times as an expert in his field in various television and magazine interviews