BCBS doesn't require additional certification for telehealth. Typically, not all BCBS plans cover telehealth, but they have stated that they will cover it during this time.

https://provider.bluecrossma.com/ProviderHome/wcm/connect/7de2d366-27c9-4ef2-9125-5cce9626502c/MPC_082715-2U+Telehealth+Final.pdf?MOD=AJPERES&CVID=