Northwest Gastroenterology and Endoscopy Center

Medical Clinics

3111 Woburn St, Bellingham, WA 98226

About Northwest Gastroenterology and Endoscopy Center

Northwest Gastroenterology and Endoscopy Center is a leading clinic with a team of specialized gastroenterologists. Patients have been with the clinic for over 20 years and could not be happier with the degree of professionalism, skill, and genuine concern. The doctors, nurses, and employees are some of the best. The staff is outstanding and kind, always returning phone calls and on track with appointments. Scheduling is great, with appointments available often within a couple weeks. Dr. Todd Witte is a top notch and very knowledgeable physician who consistently demonstrates both clinical expertise and genuine compassion. He is extremely professional and explains everything a patient needs to know. He is thorough, kind, and went above and beyond to get to the bottom of issues. Dr. Witte takes extra time to ensure a thorough exam and has utilized new treatments that were extremely effective, saving and prolonging a patient's life. He makes sure patients understand the need for current and future testing. He patiently and thoroughly explains each step in the treatment process. Patients trust him more than anyone else and feel they are in good hands at this facility.

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Reviews for Northwest Gastroenterology and Endoscopy Center

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  • Jun 2026

    I came to Dr Siemanowski with prior issues around sedation and having a colonoscopy. He listened to my concerns, recommended a plan and we set up an appointment. Everything went extremely well. He and all the staff I met at Northwest Gastro were professional and caring. I received personalized care and was extremely impressed. Medical procedures can be intimidating. My experience with Dr. Siemanowski and the staff was 100% positive.

  • May 2026

    I have been with NW Gastro for over 20 years. Dr. Todd Witte at NW Gastro in Bellingham has been instrumental in my care. He is a top notch and very knowledgeable physician. Very caring about my health and preventative care. He makes sure I understand the need for current and future testing and/or treatments. I trust him more than anyone I have seen. The staff at NW Gastro is outstanding and kind. They always return phone calls and are on track with appointments. You are in good hands at this facility. I would give them 10 stars if I could.

  • Apr 2026

    Dr. Witte is exceptional! He consistently demonstrates both clinical expertise and genuine compassion. From the first appointment, it was clear he is highly knowledgeable - able to explain complex gastrointestinal issues in a way that feels clear and manageable rather than overwhelming. He was thorough, kind, and went above and beyond to get the bottom of the issue.

Hours

Monday: 8AM - 5PM
Tuesday: 8AM - 5PM
Wednesday: 8AM - 5PM
Thursday: 8AM - 5PM
Friday: 8AM - 5PM
Saturday: ClosedSunday: Closed

Location

3111 Woburn St, Bellingham

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