Dr. Pohl is director of the Weight Loss Surgery program at Roger Williams Medical Center (RWMC). He has operated on many patients at RWMC since 2000. He oversees the bariatric surgery team and is a Fellow of the American College of Surgeons and a member of the American Society of Metabolic and Bariatric Surgery (ASMBS).

Education and Training:

• Medical School in Germany
  Residency in Surgery in Germany and New York City
• Fellowship in Minimally Invasive Surgery at the University of Washington, Seattle

Specialty:

• General Surgery
• Weight Loss/Bariatric Surgery (including laparoscopic gastric bypass, sleeve gastrectomy, duodenal switch and SADI)
• Minimally Invasive Surgery

Dr. Bloomenthal specializes in bariatric and general surgery. He has been with the RWMC Weight Loss Surgery program since 2015. He is a Fellow of the American College of Surgeons and is a member of the American Society of Metabolic and Bariatric Surgery (ASMBS).

Education and Training:

• Boston University, School of Medicine, MD, 2001
• University of Massachusetts, General Surgery Residency Program, 2009
• Thomas Jefferson University, Fellowship in Minimally Invasive and Hepatopancreaticobiliary Surgery, 2010

Specialty:

• General Surgery
• Weight Loss/Bariatric Surgery (including laparoscopic gastric bypass, sleeve gastrectomy, duodenal switch and SADI)
• Minimally Invasive Surgery

Holli Brousseau, a Nurse Practitioner with specialization in Adult Geriatric Acute Care, provides medical weight loss supervision in our comprehensive, non-surgical weight loss program. She also provides follow up care for patients after bariatric surgery. Holli has been with the RWMC’s Weight Loss Surgery program since 2014. She is a member of the American Society for Metabolic and Bariatric Surgery (ASMBS).

Jeremy Frissell, Physician Assistant, works with our surgeons during bariatric and general surgery and manages patient care in our office after surgery. Jeremy has been with RWMC’s Weight Loss Surgery program since 2002 and has assisted in thousands of weight loss surgeries He participates in the care of the patients at the hospital and in the office. His role is important in assuring continuity of care during the years after surgery.

Education and Training:

• University of Massachusetts, Lowell, BS in Exercise Physiology, 1997
• University of New England, Physician Assistant, MS, 2001

Grace Martel, physician assistant, works closely with our surgeons to deliver quality patient care for our patients after bariatric surgery. She also provides medical weight loss supervision for patients. Grace recently joined Chartercare in 2024. She has experience in emergency medical services and inpatient orthopedics.

Education and Training:

• Hobart and William Smith Colleges, BS in Biology
• Massachusetts College of Pharmacy and Health Sciences, MS in Physician Assistant Studies

Diana Beaton, Registered Dietitian, joined RWMC in 2020. She provides nutrition counseling for bariatric surgery patients and patients who take medications for weight loss. She is a Certified Diabetes Educator and provides nutrition counseling and behavior change strategies for people who have diabetes, heart disease, gastrointestinal disorders, and other chronic medical conditions. She is the MBS Coordinator for RWMC’s Weight Loss Surgery program and runs the monthly Support Group. She is a member of the Academy of Nutrition and Dietetics, Rhode Island affiliate.

Education and Training:

• State University of New York, Oneonta, NY, BS in Nutrition
• Tufts University and New England Medical Center, MS in Nutrition and Dietetic Internship, Boston, MA

Certified Diabetes Educator