I can be reached by phone or text message at 202.796.5806. Also, a voicemail can be left and I will attempt to return your call within two hours (provided I am not in the process of another notarization).
You can also schedule online for an appointment. The link is https://squareup.com/appointments/book/blackwell-mobile-notary.
I can also be reached by email at email@example.com.