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Gastroenterology Specialists in Fairfield, CA

GastroenterologyFairfield, CA

★★★★★4.8/5409 reviews across 4 platforms

Ratings by platform

  • Healthgrades (Dr. Michael Krier): 5.0 out of 5 (53 ratings) (53 ratings)
  • Healthgrades (Dr. Rashid Iqbal): 3.9 out of 5 (31 ratings) (31 ratings)
  • NorthBay Health (Dr. Michael Krier): 4.9 out of 5 (170 ratings) (170 ratings)
  • NorthBay Health (Dr. Mounzer Al Samman): 4.8 out of 5 (155 ratings) (155 ratings)

What patients say

Patients praise

  • High levels of patient satisfaction with clinical care
  • Doctors described as compassionate, thorough, and knowledgeable
  • Effective communication and explanation of conditions and treatments
  • Positive experiences with procedures such as colonoscopies and endoscopies

Common complaints

  • Some patient dissatisfaction with office staff and billing in isolated reviews

In patients' words

"I could not recommend this Dr. He really cares about his patients. Takes time and really follows through. I have had GI problems for years and finally have some hope for help."

Healthgrades (Dr. Michael Krier)

"Dr. Iqbal manages my Crohn's Disease. He is caring, compassionate, thorough, knowledgeable and experience. He explains symptoms, physical conditions, and explains possible treatment options. Excellent physician with a great office staff."

Healthgrades (Dr. Rashid Iqbal)

"After an initial consult, Dr. Krier performed an endoscopy and colonoscopy on me. No side effects. Felt great. Report was thorough and easily understood."

WebMD (Dr. Michael Krier)

How these reviews were compiled

Synthesized from public patient-review platforms as of Jul 10, 2026 — sources: [1][2][3][4][5][6][7].

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