Jason J. McAllaster, DO

Dr. Hope Knauer is board certified in Family Medicine. Her primary location of practice is at Springfield Clinic Effingham.Top 1% Patient ExperienceThis provider ranks in the top 1% nationally in patient experience, based on scores from the "Care Provider Overall" question on surveys completed with Press Ganey.

Tina Rozene, MD, is with Springfield Clinic’s Internal Medicine and Pediatrics Department seeing patients at Springfield Clinic Effingham. She joined Springfield Clinic in 2016.Dr. Rozene earned her medical degree and completed her internal medicine and pediatrics residency at Southern Illinois University School of Medicine in Springfield.“I was initially torn between being a lawyer or being a doctor when I was younger. In college, I tried the engineering route and realized that was not for me,” says Dr. Rozene. “I found my niche in medicine and it just came natural to me.”“Effingham and our surrounding communities are just so welcoming,” says Dr. Rozene. “It is so nice to just sit down with people, hear their stories and about who they are. We can then use that to help them be the best they can be.”As an internal medicine and pediatrics physician, Dr. Rozene is available to see patients of all ages ranging from newborn to seniors. She works with patients to ensure they are being proactive in their health care.In her free time, Dr. Rozene enjoys spending time with her family, hiking and photography.Top 1% Patient ExperienceThis provider ranks in the top 1% nationally in patient experience, based on scores from the "Care Provider Overall" question on surveys completed with Press Ganey.

David Kowalski, MD, is with Springfield Clinic’s Internal Medicine and Pediatric Departments seeing patients at Springfield Clinic Effingham and Springfield Clinic Stewardson. He joined Springfield Clinic in 2016.Dr. Kowalski earned his medical degree and completed his internal medicine and pediatrics residency at Southern Illinois University School of Medicine in Springfield.“As a child, I was in and out of doctors’ offices throughout my life, and those experiences inspired me to become an internal medicine and pediatrics physician,” says Dr. Kowalski.Being board certified in both internal medicine and pediatrics, Dr. Kowalski sees patients of all ages from newborn to seniors.“I get to enjoy spending time learning about my patients through my visits with them,” says Dr. Kowalski. “I want to get to know my patients to be able to tailor their medical care into what they want and what their expectations are. I work for the patients and here to help them achieve their goals and understand their treatment plan.”In his free time, Dr. Kowalski enjoys spending time with his family, hunting, fishing, wood working, spending time in his yard.