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Clinic Type

Cardiology

Address

Lakeview Building, 1001 East Superior Street, Suite 201, Duluth, MN 55802

Phone

(218) 249-3057

Email

jobs@aspirus.org

Opening Hours

Mon 8:00AM - 4:30PM; Tue 8:00AM - 4:30PM; Wed 8:00AM - 4:30PM; Thu 8:00AM - 4:30PM; Fri 8:00AM - 4:30PM; Sat Closed; Sun Closed

Services Offered

  • Cardiology
  • Cardiovascular Disease
  • Internal Medicine, Interventional Cardiology
  • Interventional Cardiology
  • Pharmacy Services

Team

  • John Michael Chua Chiaco, MD — MD
  • Lisa Hughes — APRN, CNP
  • Kathryn Johnson — APRN, CNP
  • Zachary Kraft — APRN, CNP
  • Carol Marsh — APRN, CNP

Insurance & Payment

Please contact the doctor's office to verify that your insurance is accepted.

Languages Spoken

FAQs

What insurance is accepted?

Please contact the doctor's office to verify that your insurance is accepted.

What are the clinic hours?

Mon-Fri 8:00AM - 4:30PM; Sat Closed; Sun Closed.

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • Aspirus Provider Site (for Dr. Leif Christianson): 4.8 out of 5 stars (based on 248 ratings) (248 ratings)

Patients praise

  • High patient satisfaction with the expertise and bedside manner of cardiology staff
  • Appreciation for clear, compassionate communication and patient-centered care
  • Positive outcomes for cardiac interventions such as ablations and emergency angioplasties
  • Recognition of medical professionals being helpful, kind, and knowledgeable

Common complaints

  • Reports of poor communication from medical staff regarding patient care and procedures
  • Concerns about dismissive attitudes toward patient concerns or complications
  • Isolated complaints regarding administrative issues such as lost personal items or billing disputes

"They have such a beautiful way of connecting with and seeing me as a PERSON, not as merely another patient. They are really very knowledgeable, addressing my physical needs as well as explaining them to me in a extremely satisfactory manner!"

Patient Review (A-Better-Place.com)

"The way Dr. Dong handles herself really put me at ease... She’s so calm and concise. She made me feel heard and answered all my questions."

Patient testimonial (Aspirus News)

"Aspirus St. Luke's Hospital has received mixed reviews from patients, with some expressing dissatisfaction with the quality of care and communication."

Wanderlog Summary

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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