Lisa Mikkelsen joined the company in March 2020 as the Chief Executive Officer. She is a seasoned healthcare executive with 17 years of multi-unit operations experience. Prior to joining WellStreet, Lisa was the COO of Benevis Dental Practice Management Services, the leading Medicaid-focused children’s dental support organization. Lisa thrives in taking a solutions-based approach to leading teams through growth and change. She is passionate about developing team members, building culture, and implementing systems and processes to effectively support growth.
The WellStreet Story
Founded in 2011 as an independent Urgent Care operator in Atlanta, Georgia, WellStreet quickly grew into a network of 7 locations within one year of operations. In 2014, our partnership model emerged as we partnered with Piedmont Healthcare to grow and expand the Piedmont Urgent Care brand across North Georgia. Our story continued in 2019, as we launched a partnership with Corewell Health, to deploy and operate a network of urgent cares under the Corewell Health Urgent Care brand in Southeastern Michigan.
WellStreet’s market footprint has continued evolving as additional partnerships launched in early 2023 with University Hospitals and Prisma Health. Despite our rapid growth, our teammates and leaders remain steadfast in our commitment to providing each and every patient with best-in-class quality and experience as we continue evolving to meet the patient needs of tomorrow!
Uncompromising Care…One Patient at a Time
Wellstreet Leadership
LISA MIKKELSEN
Chief Executive Officer
LEE A. RESNICK, M.D.
President & Chief Growth Officer
Lee A. Resnick, MD is WellStreet’s President & Chief Growth Officer. Over the course of his 24 year career in urgent care, Dr. Resnick has led the national effort to bring academic rigor and clinical excellence to urgent care medicine. He was a founding board member and past president of the Urgent Care Association (UCA), where he was honored with an Outstanding Achievement Award. Dr Resnick is a committed patient advocate, innovator and thought leader, and is proud to serve the mission and vision of WellStreet Urgent Care
MICHAEL DUCHYNSKI, M.D.
Chief Medical Officer
Michael is a board certified Emergency Medicine physician who has spent the last decade in the urgent care space with WellStreet in various roles. He has been serving in the role of CMO of WellStreet since November 2021. Dr Duke, as he is known, is passionate about delivering access to high quality, evidence based, and consistent care with a best in class patient experience across all WellStreet centers.
JIMMY KARVELAS
Chief Financial Officer
Jimmy Karvelas is an accomplished executive leader and financial strategist currently serving as the Chief Financial Officer at WellStreet Urgent Care in Atlanta, GA. With a wealth of experience spanning over two decades, Jimmy has consistently driven growth, profitability, and operational efficiency in the healthcare industry. His tenure at WellStreet, initially as Senior Vice President from 2019 to 2024, and now as CFO, has been marked by a focus on de novo growth and successful mergers and acquisitions. Prior to his role at WellStreet, Jimmy served as the CFO of Summit Urgent Care in Newnan, GA, where he played a pivotal role in expanding the organization's provider base, orchestrating multiple acquisitions, and implementing strategic initiatives that exceeded performance expectations. His expertise extends across financial modeling, forecasting, business intelligence development, and strategic planning, coupled with a strong focus on fostering a culture of integrity and exceptional patient care. Jimmy Karvelas is passionate about connecting the dots throughout the organization, contributing to building a stronger company and improving competitive positioning.