Endorsement from CA to MD for a Foreign Grad

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Hi everyone, I am currently an RN Case Manager working remotely here in CA and due to work requirements, I need to obtain licenses to other states. I am currently pursuing NV licensure and it is going well, however I am also interested to pursue MD licensure even if I get just the single state. I tried to contact the MD board for endorsement inquiry but they haven't emailed back and it has been 3 weeks already. I am a foreign grad, more than 10 years of nursing experience and have a graduate degree here in the US. Does anyone have other contact email for the board of phone numbers? Any insight helpful.