At the same time, Mitsumichi was a known doctor who was appointed to conduct actual medical examinations of the Emperor Ninko, with the official court rank of Jushiinoge (Junior Fourth Rank, Lower Grade), Assistant Director of the Bureau of Taxation, but he has lost his successor since his biological son Mitsutaka passed away in 1844.
同時に、従四位下主税助の官位を授けられ仁孝天皇の天脈拝診（実際に天皇の診察に携わること）も命じられた名医であったが、天保15年（1844年）に実子の光敬（みつたか）に先立たれて後継者を欠いていた。