2005 – Ramon Castro (PEDs)
2005 – Josh Labandeira (PEDs)1
2006 – Greg Thissen (Drug of Abuse)
2008 – Weesley Hernandez (PED)
2008 – Aaron Jackson (Drug of Abuse)2
2009 – Edgardo Baez (Amp.)
2009 – Stephen Englund (Amp.)
2009 – Stephen King (Amp.)
2010 – Seth Bynum (Amp.)
2010 – J.R. Higley (Amp.)
2010 – Steven Souz (Amp.)
2010 – Juan Diaz (PED)
2010 – Jorge Hernandez (PED)
2010 – Pedro Lopez (PED)
2011 – Adrian Nieto (PED)
2011 – Hector Taveras (Refusal to Submit)
2012 – Zech Zinicola (Drug of Abuse)
2012 – Josh Wilkie (Drug of Abuse)3
2015 – Kyle Bacak (Amp.)4
2016 – Yonaiker Oropeza (PED)
2017 – Jefry Rodriguez (PED)
2017 – Emmanuel Burriss (Drug of Abuse)
2018 – Raudy Read (PED)
2018 – Jonathan Pryor (PED)
2019 – Steven Fuentes (PED)
2020 – Tres Barrera (PED)
Sources: Maury Brown, Biz of Baseball Blog (defunct); Baseball America, MiLB.com
1 – In possession of a syringe
2 – Pitched for Hagerstown in 2007, FA at time of announcement
3 – Josh Johnson and Rafael Martin were also “disciplined” at the time, but not formally suspended by MiLB
4 – Played in GCL in 2014, FA at time of announcement