Mark A. Stefaniuk, MD
Family Medicine Physician | Co-Founder, Pioneer Concierge Medicine
Dr. Stefaniuk is a dedicated Family Medicine physician with nearly 15 years of experience serving patients in the northwest suburbs of Chicago. Prior to establishing his suburban practice, he spent 9 years as an Emergency Room physician in downtown Chicago, gaining invaluable experience in managing a wide range of acute and chronic medical conditions.
His broad clinical background, combined with his commitment to leadership and service, has made Dr. Stefaniuk a respected figure in the medical community. Throughout his career, he has held multiple committee and leadership roles within his former medical group. In 2022, he co-founded Pioneer Concierge Medicine with Dr. Pithadia to provide a more personalized, relationship-based model of care.
Dr. Stefaniuk earned his Bachelor's degree in Kinesiology from the University of Michigan. He went on to attend medical school at Saba University School of Medicine in the Netherlands-Antilles and completed his Family Medicine residency at Duke University Medical Center in Durham, North Carolina, where he was recognized with several teaching and leadership awards.
Born and raised in a close-knit Ukrainian community in suburban Detroit, Dr. Stefaniuk developed a strong foundation in family values, community, and service. He brings these principles into his medical practice, emphasizing physical and emotional wellness, as well as the prevention of chronic illness.
At Pioneer Concierge Medicine, Dr. Stefaniuk is proud to offer a healthcare experience that is deeply personal, highly attentive, and centered around the individual needs of each patient.
Outside of medicine, Dr. Stefaniuk enjoys spending time with his wife, Tunia, his six children, and their two dogs. A lifelong sports enthusiast and lover of the outdoors, he remains active and engaged in both his family and community.