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Mercy Health — St. Vincent Gastroenterology

GastroenterologyToledo, OH

★★★★☆3.9/562 reviews across 2 platforms

Ratings by platform

  • Healthgrades (for Dr. David Zack, affiliated with St. Vincent): 3.5 out of 5 stars (15)
  • US News & World Report (for Dr. David Zack, affiliated with St. Vincent): 4 out of 5 stars (47)

What patients say

Patients praise

  • Physicians described as caring, attentive, and kind
  • Proactive approach to healthcare
  • Clear explanations of procedures and treatment options
  • Staff described as professional by some patients

Common complaints

  • Difficult to schedule appointments
  • Long wait times
  • Communication issues regarding test results and follow-ups
  • Perceived unprofessionalism or rudeness from staff

In patients' words

"Staff is rude. Send you for testing and do not notify of results. Never clear on when to follow up."

Healthgrades review for Dr. David Zack

"Dr. Zack is a fine physician who listens to his patients and spends whatever time necessary to allay fears and answer questions that his patients and family may have."

Vitals review for Dr. David Zack

"Would recommend Dr Ahmad to anyone. The most caring and kind doctor ever!"

WebMD review for Dr. Farid Ahmad (affiliated with Mercy Health gastroenterology)

How these reviews were compiled

Synthesized from public patient-review platforms as of Jul 11, 2026 — sources: [1][2][3][4][5][6][7].

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