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About

Summary: Trinity Muscatine is part of UnityPoint Health and focuses on occupational medicine in Muscatine, IA. It’s a small healthcare provider (17 employees) with annual revenue around $5.7M, headquartered in Rock Island, IL. The site specializes in compassionate, personal care and partner-style health services for the Muscatine community, rather than general or elective surgical services. If you’re specifically seeking general surgery in Muscatine, this page does not indicate a surgical practice; consider UnityPoint Health – Muscatine or nearby hospitals for general surgery options. For contact: 563-262-4120.

Clinic Type

General Surgery

Address

UnityPoint Clinic Mulberry - Surgery, 1518 Mulberry Avenue, Suite 102, Muscatine, IA 52761

Phone

5152418199

Email

UPH_CentralIAPrivacyOfficer@unitypoint.org

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • General Surgery
  • Minimally Invasive General Surgery
  • Bariatric Surgery

Team

  • Leon Siegel, MD, MD — General Surgeon
  • Mark Williams, MD, MD — General Surgeon
  • Nathan Mohr, MD, MD — General Surgeon

Insurance & Payment

Languages Spoken

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Healthgrades (Dr. Calvin Atwell): 4.4/5 star rating (11 reviews)
  • WebMD (Dr. Melinda Hass): 4.0/5 average rating (12 ratings (3 written reviews shown))
  • US News (Dr. Prasad P. Nadkarni): Very Positive patient experience rating (4/5) (6 patient experience ratings (Press Ganey; “6” shown in snippet))
  • MercyOne (Calvin E. Atwell): 4.7/5 out of 5 (50 ratings)

Patients praise

  • Doctors described as knowledgeable and compassionate
  • Patients report doctors explain options and take time to answer questions
  • Some positive mentions of patient experience and willingness to recommend (hospital-level)

Common complaints

  • Complaint about surgery/medical record accuracy and continued pain (Healthgrades review of Dr. Atwell)
  • Reports of staff not listening and tests ordered without reasonable explanation (WebMD hospital review)

"“Dr. Hass does a wonderful job explaining all your options and spending enough time to answer all your questions.”"

WebMD review snippet for Dr. Melinda Hass

"“He did an inguinal hernia that I dudnt have… I still continue to have stabbing pains from this as he continued to keep lying about the surgery.”"

Healthgrades review snippet for Dr. Calvin Atwell

"“If I could score 0 I would. Nobody listens to you… they order tests for things that have no reasonable explanation.”"

WebMD hospital review snippet for UnityPoint Health Trinity Muscatine

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

Information sourced from the clinic's website as of July 11, 2026.

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Summary: The page describes Trinity Muscatine, an occupational medicine unit operating under UnityPoint Health at Work in Muscatine, IA. It is a small private healthcare entity (17 employees) with annual revenue around $5.66 million. Based in Rock Island, IL, Trinity Muscatine focuses on compassionate, personal care as part of UnityPoint Health’s Muscatine occupational medicine services. Contact: 563-262-4120.

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