Dr. Lenny Hochstein has a new girlfriend, Page Six can exclusively reveal.

The Miami-based plastic surgeon, 59, is dating Russian model Alena Kovalenko, 25, following his split from Katharina Mazepa, an insider tells us.

We’re told Hochstein is smitten with the “incredibly beautiful, sweet and great person” but that their romance is “still pretty new.”

They’re “both Russian,” so they “have that in common,” our insider adds.

The couple hasn’t hesitated to flirt openly on Instagram, often dropping heart, heart-eye, and fire emojis on each other’s latest posts.

In fact, Kovalenko just uploaded a selfie from a luxurious-looking bed with the geotag Star Island, where Hochstein lives.

Neither immediately responded to Page Six’s requests for comment.

This relationship follows our exclusive revelation that Hochstein and his once on-and-off fiancée, Mazepa, called it quits permanently earlier this year.

In June, we shared that they had parted ways “a few months” earlier, with the 29-year-old Austrian model explaining that she was the one who “decided” to end things and even “gave back the ring.”

Hochstein re-proposed to Mazepa in December 2024, four months after the duo ended their first engagement that August.

The father of two first popped the question in July 2023.

His ex-wife, “Real Housewives of Miami” star Lisa Hochstein, has long maintained that he cheated on her with Mazepa, but he has always maintained his innocence.

Interestingly, Page Six caught up with Lisa, 42, and Lenny’s mother, Marina Hochstein, last month at the “RHOM” Season 7 premiere party, where they gushed about having made amends.

Asked which of the two “initiated” the reconciliation, the Bravolebrity said they “both wanted it,” cryptically noting that Marina has now “seen things” that Lisa saw all along.