As a cornerstone of our thriving community in Casper, Wyoming, Summit Medical Center offers exceptional healthcare. We meet that standard by focusing on the needs and comfort of our patients, upgraded technology and offering advanced procedures in Natrona County.

Years of Experience

Bringing choice to Casper

The central focus of Summit Medical Center is to promote community health by providing low cost, quality, compassionate healthcare services that embrace the values of human dignity and community. On a day-to-day basis, our highly-trained doctors and care teams serve your overall needs with a wide range of health, wellness and preventive services. We cater to the humanity of our patients and visitors with a warm feel that can only be found at Summit Medical Center.

Summit Medical Center offers an advanced surgical specialty team and facility serving all ages, and offering a level of care one might only expect of a large metropolitan area, including:

  • ENT (Ear, Nose & Throat)
  • Gastroenterology
  • General Surgery
  • Gynecology
  • Orthopedics
  • Pediatrics
  • Plastic Surgery
  • Primary Care
  • Radiology
  • Lab & Pharmacy Services

Take a Tour of Summit Medical Center

Lobby Check In
Family Waiting Lounge
Family Waiting Lounge
Nurse Station and Pre-Op
GI Prep and Recovery
Operating Room
Operating Room
Patient Bathroom
Post Op
Patient Room
Patient Room


The leadership at Summit Medical Center is driven by a passion for Casper and the families that call it home. At Summit Medical Center, the leadership team consists of the doctors who own and operate the hospital and Chief Executive Officer, Dennis Jack.

  • Dennis Jack
    Dennis Jack Chief Executive Officer

    Mr. Jack understands the commitment and strategy required to build a hospital—in his past experience as a CEO, administrator and director of operations, he was deeply involved in the ground-up development of numerous new facilities, including hospitals for psychology, rehabilitation and acute care. An innovative leader, Mr. Jack will manage all areas of Summit Medical Center.

  • Dr. Joe Vigneri
    Dr. Joe Vigneri Medical Director

    A member of the Wyoming State Medical Society, Joseph Vigneri, M.D., is board certified ENT physician who has been practicing in Casper for 40 years. Dr. Vigneri is the Medical Director of Summit Medical Center. He received his medical degree from University of Minnesota Medical School.

  • Calvin Carey
    Calvin Carey Chief Financial Officer

    Mr. Carey is a 49 year old Wyoming native and comes with more than 20 years of healthcare finance experience. Mr. Carey is a CPA with an MBA from University of Phoenix with his undergraduate work at Idaho State, and has served as Chief Financial Officer for seven hospitals over the last 16 years.

  • Vanessa Sorensen
    Vanessa Sorensen Chief Nursing Officer

    Vanessa Sorensen has been advancing quality healthcare in Casper since 2001, when she began her career as a medical nurse at Wyoming Medical Center. Since that time, she has gone on to serve as a nursing supervisor, neurology unit manager and clinical systems coordinator, and now leads Summit Medical Center clinical support staff as chief nursing officer.