Our doctors are friendly. are compassionate. are experts in their specialty.

Find the best doctor for you.

NorthBay Gastroenterology’s team of board-certified experts employs a variety of advanced treatments, from medications to minimally invasive endoscopic procedures and complex digestive endoscopy.


  • Mounzer Al Samman headshot
  • Michael Krier headshot
  • Charles Whang headshot

Advanced Health Practitioners

  • Joel Ambrosio headshot