Our Team

Sean Yuan, MD, FACS


Dr. Sean Yuan specializes in Minimally Invasive General Surgery, Bariatric Surgery, and Medical Weight Management for patients. He is committed to helping his patients overcome weight challenges and assisting them in achieving long-term success and health.

Dr. Yuan graduated from Beijing Medical University (now Peking University Health Science Center) to become a trained plastic surgeon. He completed his general surgery residency at Lankenau Health Center and Mercy Fitzgerald Hospital, both in Philadelphia. He then went on to complete a minimally invasive bariatric surgery fellowship at the Virginia Commonwealth University Medical Center in Richmond. 

As a board-certified Surgeon and Fellow of the American College of Surgeons, Dr. Yuan is dedicated to meeting and exceeding the expectations of his patients. He has extensive experience in a wide range of minimally invasive general surgery and weight loss procedures, including Sleeve Gastrectomy, Roux-en-Y Gastric Bypass, and Gastric Banding — patients who undergo these laparoscopic procedures often recover with less post-surgical discomfort and fewer complications than those who undergo traditional surgical techniques.

Dr. Yuan is enthusiastic about his work, cares about his patients and loves the local community.  

Angela Nolan – Dietician

agAngela is a Registered Dietitian and a certified health and wellness coach by WellCoaches.  She completed her bachelor’s degree and dietetic internship through LaSalle University and an intensive health and wellness coach training course through WellCoaches School of Coaching. She also holds a Certificate of Training in Adult Weight Management through the Commission on Dietetic Registration.

Angela has helped individuals reach their own personal health and wellness goals in a variety of settings including hospitals, outpatient centers, medical offices, integrative health and wellness centers, schools, and fitness centers. She believes that every individual has the power to take control of his or her wellness and not only make, but also sustain powerful lifestyle changes.

Angela is passionate about nutrition and health. She believes that a realistic plan with balance and moderation and a non-judgmental approach, is the key to maintain a healthy lifestyle. She is committed to helping you reach your health, wellness and nutrition goals. Wellness is truly Angela’s passion, therefore the opportunity to work with Dr. Yuan and the team at Potts Surgical Associates is an immense blessing.

Dawn Wallace – Medical Assistant

dawnwallaceDawn has been serving the local community since she graduated. She attended Antonelli Medical and Professional Institute in Pottstown, Pennsylvania where she became a Certified Medical Assistant. She joined our team from the beginning of our practice first opening its doors. Dawn has a warm personality; she is the first person to greet you when you come to visit us in our office and she makes sure that each visit will be a pleasant experience. Dawn is proud to be a member of Dr. Yuan’s team and honored to work in a fantastic environment where patients are truly our number one priority.


Bambi Detwiler – Medical Assistant

Bambi is a Pottstown native. Bambi joined our weight loss team as a medical assistant and patient liaison since 2017. She was a patient herself and went through her own journey towards a healthier and more productive life through bariatric surgery. “I remembered how difficult it was before the procedure physically and emotionally. That is why I am so happy to be part of a great team right in my hometown. I could help others to see the potential and achieve what I achieved. It was not easy though. You will need a lot of dedication”. With her outgoing personality and passion, she is always ready to help our patients in the office and guides them through the challenges of their.




All of our team members are friendly, knowledgeable, and highly proficient in their office duties. Should you have any questions or concerns before, during or after a visit to our office, do not hesitate to talk with one of our staff members. They are readily standing by to address your needs.