Hospital Corpsman First Class Ronald E. McCaslin Jr. enlisted in the United States Navy Selective Reserves on January 11th, 2012, in Chicago, IL. He reported to Recruit Training Command, Great Lakes, IL, on June 5th, 2012. Upon completion, Seaman McCaslin was ordered to Hospital Corpsman "A" School in San Antonio, TX. Upon completion, Hospitalman McCaslin then reported to Field Medical Training Battalion, Camp Johnson, NC in December of 2012.
In March 2013, after earning qualification as a Field Medical Service Technician, he reported to Navy Operational Support Center, Chicago and was advanced to Petty Officer Third Class in June 2013.
From July 2013 to December 2016, Hospital Corpsman McCaslin reported to Marine Logistic Group, 4th Dental Battalion, 14th Dental Company, Detachment 3. He was assigned as the Assistant Leading Petty Officer and oversaw 10 dental providers and four Hospital Corpsmen in the support of eight geographically separated units servicing over 2,000 Marines. He was promoted to Petty Officer Second Class in December of 2015.
In January of 2016, Hospital Corpsman Second Class McCaslin reported to 4th Marine Logistic Group, 6th Engineer Support Battalion, Engineer Company "C", Peoria, IL. He was assigned as the Medical Department Leading Petty Officer over 160 Marines and four Sailors and was advanced to Hospital Corpsman First Class in August of 2019.
In September of 2019, Hospital Corpsman First Class McCaslin was appointed to the position of Battalion Leading Petty Officer for 6th Engineer Support Battalion, 4th Marine Logistic Group, where he reconfigured the structure and manning to best provide medical coverage for 12 units in nine states.
In September of 2020, Hospital Corpsman First Class McCaslin was selected as an Assistant 4th Marine Logistics Group Enlisted Fleet Marine Force Warfare Qualification Program Coordinator. He was further selected as the 4th Marine Logistics Group Senior Sailor of the Quarter for the 1st and 2nd quarter of 2021.
Hospital Corpsman First Class McCaslin's personal awards include the Navy and Marine Corps Achievement Medal gold star, in lieu of second award, Military Outstanding Volunteer Service Medal, and Expert Rifle qualification. He graduated from Indiana Wesleyan University with a bachelor’s degree of Science in Nursing and is currently enrolled with the University of Saint Francis in the Psychiatric Mental Health Nurse Practitioner program. Hospital Corpsman First Class McCaslin earned his Enlisted Fleet Marine Force Warfare Specialist qualification in September of 2018.