Please call for more information. $100 first time office visit fee and additional COVID-19 test fee. . by Abdul Mujeeb | Jul 29, 2020 Bookmark Detailed InformationPlease call for more information. $100 first time office visit fee and additional COVID-19 test fee. . Contact Information 208 E, Starr St, Mercedes, 78570 , Texas (956) 903-4218 http://mercedes.rgvadultmedicine.com/