About RIVKA SIDORSKY, LLC. Rivka Sidorsky, Llc is a provider established in Silver Spring, Maryland specializing in social worker (clinical) . The NPI number of Rivka Sidorsky, Llc is 1417370446 and was assigned on January 2014. The practitioner's primary taxonomy code is 1041C0700X with license number 16216 (MD). The provider is registered as an organization and their NPI record was last ....