Summary

Dr. John Klosak is a vascular surgeon with nearly five decades of experience in treating conditions affecting blood vessels throughout the body. He earned his medical degree from Loyola University of Chicago Stritch School of Medicine and completed his residency at Loyola University Medical Center. With 47 years of dedicated practice, Dr. Klosak has developed extensive expertise in surgical and non-surgical treatments for vascular conditions. He provides care to patients in English.

Dr. Klosak is affiliated with UnityPoint Health Trinity Rock Island and practices at multiple locations across Iowa, including Bettendorf, Muscatine, and Sioux City. His extensive experience allows him to address a wide range of vascular health concerns with precision and skill. Patients consistently rate their experience with Dr. Klosak highly, giving him an average rating of 4.5 out of 5 stars. He brings decades of surgical expertise to each patient encounter, ensuring comprehensive vascular care throughout the region.
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Quick Facts

  • 4.5
  • 47 years of experience
  • speaks English
  • Loyola University Medical Center
  • 1 written review
  • 1 specialty
  • 5 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 3 office locations
  • Male

Office Locations

Dr. John James Klosak has 3 locations

Unitypoint Health Trinity Bettendorf

4500 Utica Ridge RdBettendorf, IA 52722

Saint Lukes Regional Medical Center

2720 Stone Park BlvdSioux City, IA 51104

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Dr. John James Klosak, MDDr. Rudolph Alan Altergott, MDDr. Eric J DippelDr. Fang Yuan
Vascular SurgeryVascular SurgeryInterventional CardiologyVascular Surgery
Accepts New Patients Accepts New Patients
4.5 
3.6 
3.3 
47 Years of Experience 46 Years of Experience 6 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Spanish Speaks English
Bettendorf , IAJoliet , ILDavenport , IAMiami , FL
Med School: Loyola University Of Chicago Stritch School Of Medicine Med School: Loyola University Chicago Stritch School Of Medicine Med School: University Of Virginia School Of Medicine
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Insurance Plans Accepted by Dr. John James Klosak

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. John James Klosak has the following specialty

Specialty Expertise

Dr. John James Klosak has the following 5 areas of expertise

  • Aneurysm
  • Deep Vein Thrombosis
  • Diabetes Complications
  • Varicose Veins
  • Vascular Malformations

Certifications, License, & Education

47 Years Experience

MEDICAL LICENSE

Medical Doctor, Iowa, 2026, Active

EDUCATION & TRAINING

Residency

Loyola University Medical Center

Medical School

Loyola University Of Chicago Stritch School Of MedicineGraduated in 1979

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Frequently Asked Questions

Is Dr. John Klosak accepting new patients?
Dr. John Klosak has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. John Klosak accept my insurance?
You can see the insurance plans that Dr. John Klosak accepts on their Vitals profile.
Which hospitals is Dr. John Klosak affiliated with?
Dr. John Klosak is affiliated with Unitypoint Health Trinity Rock Island.
Where is Dr. John Klosak's office located?
Dr. John Klosak's office is located at 4500 Utica Ridge Rd, Bettendorf, IA, 52722.
What languages does Dr. John Klosak speak?
Dr. John Klosak speaks English.

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