The TRICARE dental plan is for dependents of active duty and guard/reserve members and their dependents.
Now, the service is working to process the horde of volunteers, ensuring those it takes are properly qualified and certified.
Critics are calling for the Military Health System's overhaul to be reconsidered in the wake of the pandemic.
Investigation into physical controls at eight military hospitals and clinics found disparities that leave them vulnerable.
The military is also testing a number of drug mixtures that could dampen the severity of the coronavirus' symptoms.
The centers were originally expected to take patients with non-COVID-19 conditions to relieve pressure from hospitals.
The Army's Human Resources Command sent messages to nearly 10,000 soldiers in the IRR asking for volunteers.
The plans mark a first for the Uniformed Service University of the Health Sciences in Bethesda, Maryland.
The Army's chief of Staff has asked medical units to assess their capabilities in the event that they are needed to respond.
Dr. Mark Gebhart 53, was commissioned Wednesday morning into the Army reserves as a lieutenant colonel.