Live
Read more

About

Aspirus St. Luke’s Superior Clinic is part of Aspirus Health, a non-profit health system based in Wausau, Wisconsin. In March 2024, Aspirus combined with Saint Luke’s Duluth to form a single organization that includes Saint Luke’s hospital in Duluth and Lake View Hospital in Two Harbors, expanding Aspirus’s reach into northern Minnesota. The merger decision was announced in early 2024, with related activities such as branding updates in mid-2024. The overall system includes 19 hospitals across Wisconsin, Minnesota, and Michigan’s western Upper Peninsula. For Ambulatory/clinic services, the St. Luke’s Duluth footprint (now under Aspirus) extends into the Superior/Bayfield region area, including clinics in and around Superior, WI, and Duluth, MN, as part of the integrated Aspirus network. If you’re seeking care at the Superior Clinic specifically, you’ll likely access it through the Aspirus/St. Luke’s Duluth network with aligned scheduling, patient records, and coordinated specialty services.

Clinic Type

Internal Medicine

Address

109 North 28th Street East, Superior, WI 54880

Phone

(715) 395-3900

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

  • Family Medicine
  • Nephrology
  • Ophthalmology
  • Orthopaedic Surgery
  • Physical Therapy
  • Surgery, General
  • Urology
  • Internal Medicine

Team

  • Sarah Greeman — APRN, CNP
  • Jennifer Marksteiner — APR N, CNP

Insurance & Payment

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

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

Languages Spoken

FAQs

What are the hours of operation?

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

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Aspirus Provider Website: 4.7 out of 5 stars (92 ratings)

Patients praise

  • professional and personable care from specific providers
  • positive feedback regarding individual provider experiences
  • general clinical patient rating of 4.7 out of 5 stars

Common complaints

  • reports of misdiagnosis and lack of proper examination
  • concerns regarding communication and dismissive attitudes from staff
  • dissatisfaction with pain management and unnecessary procedures
  • billing issues leading to collections for small amounts

"I have been going to Dr. Yoon for years and highly recommend him. Very professional and personable. Great staff!"

MapQuest Review

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

Wanderlog review 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.

More internal medicine clinics in Superior

Superior, WI·Internal Medicine

Essentia Health St. Mary’s – Superior Clinic is part of Essentia Health’s network of facilities in the Upper Midwest. The Superior, WI clinic provides internal medicine services as part of a multi-site system that includes offices in Duluth, Fargo, Brainerd, Virginia, and Superior, among others. The organization highlights its nurse-led care initiatives and patient-focused services, with the Superior clinic being one of Essentia’s eight US locations. For precise internal medicine offerings, scheduling, and providers at St. Mary’s Superior, contact the clinic or visit the Essentia Health site.

VerifiedOnline booking
Superior, WI·Internal Medicine

Sheboygan Internal Medicine (Sheboygan Internal Medicine Associates LLC) is a small adult primary care practice based in Sheboygan, Wisconsin. It offers comprehensive routine care for adults, offsite healthcare services, and on-site laboratory services, supported by a team of physicians, nurse practitioners, and staff. The practice operates three offices in the United States, with a main location at 2920 Superior Ave, Sheboygan, WI 53081. Key details: - Industry: Healthcare / Consumer Services - Services: Routine adult care, offsite healthcare, laboratory services - Contact: 800-236-6366 or 920-452-6000 - Workforce: 4 employees (growth noted) - Online presence: simasc.com - Location relevance: Superior Ave address in Sheboygan; primary focus on Sheboygan Internal Medicine in Sheboygan, WI - Accessibility: Small practice footprint with limited staff; low web traffic but steady local presence If you’re specifically looking for “Sheboygan Internal Medicine Superior,” the primary location to consider is 2920 Superior Ave, Sheboygan, WI 53081.

VerifiedEmergency care

See all internal medicine clinics in Superior

Comparing your options?

See other internal medicine clinics in Superior, or search the full directory by insurance, ratings, and more.

More Internal Medicine Clinics