Part of the Cerritos medical roster
Tegtmeir was a Starfleet officer who served aboard the USS Cerritos in the medical division in 2381.
When Ensign D'Vana Tendi was being transferred out of sickbay, Ensign Sam Rutherford consulted a medical crew roster that included Tegtmeir, but confirmed that Tendi had been removed. (LD: "First First Contact")
This officer was only mentioned in writing.