St. Luke's. The Patient. Above All Else. ®
St. Luke's

Mariner Medical Clinic



109 N 28th St. East
Superior, WI 54880


M-F: 8:00am-5:00pm

Medical Staff

Clinic Manager:
Charlotte DeRosia

Director, Clinic Operations:
Mary Andrews

Mariner Medical Clinic

At Mariner Medical Clinic, our focus is you. By providing primary and specialty care services, we can offer your family a total package of health care services-staffed by an experienced, compassionate team of physicians and backed by the expert resources of St. Luke's Hospital. It's care you can count on for a lifetime, and that's the care you deserve.

The National Committee for Quality Assurance (NCQA) in conjunction with the American Diabetes Association has recognized the physicians of Mariner Medical Clinic for meeting criteria for 10 evidence-based measures in the Physician Diabetes Program. These physicians demonstrate they are part of an elite group that is publicly recognized for skill in providing the highest-level of care to their patients with diabetes.

These physicians are listed on the NCQA web page as achieving this recognition.

St. Luke's Urgent Care

Monday-Sunday, 10:00 a.m. to 8:00 p.m. (closed holidays)
The Urgent Care physician treats minor medical problems that require prompt attention when your primary care doctor is unavailable. Commonly treated illnesses and injuries include sore throats, earaches, minor cuts, burns, bruises, and various sprains and strains. No appointment necessary. 715-395-3950.

St. Luke's Outpatient Surgery Center

St. Luke's Outpatient Surgery Center at Mariner Medical Clinic provides a convenient location to receive outpatient surgical procedures. The Center features two operating suites, an endoscopy room, and private pre-op and recovery areas. Surgeries performed include general surgical procedures, as well as orthopaedic, ophthalmology and ear/nose/throat services. Surgeries can be scheduled at this Center through your surgeon's office.


From complete eye exams to complex surgical needs, St. Luke's ophthalmologist John Yoon, MD, offers a full range of ophthalmology services.

Mariner Medical Clinic is proud to offer these ophthalmology services.

  • Complete Eye Care
  • Cataract with Intra-Ocular lens Implant - Standard and Multi-focal
  • Glaucoma diagnosis and management
  • Diabetic retinopathy diagnosis and treatment
  • Macular degeneration diagnosis and treatment -includes Lucentis and Eylea injections when indicated
  • Sudden eye concerns and injuries
  • Contact lens evaluations and fitting
  • Sports, school, driver's license and other exams
  • Laser treatment
  • Surgery - Refractive, Cataract, Eyelid

Additional Clinic Information

Clinics and Specialties
Family Medicine
Bay Area Medical Clinic
Chequamegon Clinic
Denfeld Medical Clinic
Hibbing Family Medical Clinic
Lake View Medical Clinic
Laurentian Medical Clinic
Lester River Medical Clinic
Mariner Medical Clinic
Miller Creek Medical Clinic
Mount Royal Medical Clinic
P.S. Rudie Medical Clinic
Specialties and Services
St. Luke's | 915 East First Street, Duluth, MN 55805 | 218-249-5555 | 1-800-321-3790
St. Luke's is exempt from Federal income tax under the 1954 provisions of Section
501 (c) (3) of the Code
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