Webreliant medical group, optum complete combination. Webreliant medical group of worcester and southboro medical group are looking to merge, potentially creating an organization of more than 300 physicians that would serve about. Webyasir saleem, md is a family medicine physician with reliant medical group. Saleem practices at the southborough, ma location. Webfind a primary care doctor near you in las vegas and henderson. Call relianthealth and book an appointment today. Relianthealth primary & wellness care clinic has doctors. Webworcester — when reliant medical group agreed to be sold to optum inc. , the nonprofit physician’s group got a $250 million shot in the arm. Weboptumhealth, a subsidiary of unitedhealthcare, has announced plans to acquire reliant medical group, a physician group out of massachusetts.