George - Just stumbled across a list of test sites:
MD Link concierge testing (the medical nurse that comes to your boat) 284-440-3070 $225 PCR rapid is $125
BVI's: Penn Medical in Road Town 264-495-3299 $80
Wellness Center Clinic 284-496-0838 Tortola Pier Park $75 M-F 9-8pm weekends by appt. info@...
Jost Van Dyke (Great Harbour) Jost Van Dyke Clinic 284-346-1709 Cost: $70pp
Dr Dougan Private - +1 (284) 440-3070 - available across Tortola, the doctor does not have access to a boat to be able to service the islands
All testing facilities will be open across the holidays including Thanks Giving and Christmas
Hope that helps.