このかたが昨晩私がお話したお医者さんです。

This is the doctor whom I spoke of last night.

このかたが昨晩(さくばん)私(わたし)がお話(はなし)したお医者(いしゃ)さんです。

Kono kata ga sakuban watashi ga ohanashishita o isha san desu.

此の (この)

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

過多 (かた)

excess; superabundance

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

昨晩 (さくばん)

last night

私 (わたし、わたくし)

I; me; private affairs; personal matter; secrecy; selfishness

お話 (おはなし)

story; tale

御 (お、おん)

honorific/polite/humble prefix

医者 (いしゃ)

(medical) doctor; physician

さん (さん)

Mr.; Mrs.; Miss; Ms.; -san; makes words more polite (usu. in fixed expressions)

です (です)

be; is

Reading: サク

Meanings: yesterday, previous

Reading: バン

Meanings: nightfall, night

Readings: シ、わたくし、わたし

Meanings: private, I, me

Readings: ワ、はな.す、はなし

Meanings: tale, talk

Readings: イ、い.やす、い.する、くすし

Meanings: doctor, medicine

Readings: シャ、もの

Meanings: someone, person