Kraft took Blumberg, a top eye doctor, to Elton John‘s glitzy Oscars bash in LA and the pair posed happily for photos.
He then chatted with Pats fans as Blumberg looked on, onlookers reported.
A friend told Page Six: “They’re serious, as the kids would say, ‘They’re going steady!’ They’ve been dating for almost a year now and they’re happy.”
Blumberg is one of the foremost ophthalmologists in the country and she’s based at NewYork-Presbyterian Hospital-Columbia.
The pair have been dating since Kraft’s split from long-term love Ricki Lander.
They were first spotted together at the French Open last year — and we then revealed how Kraft introduced his love to all his high roller friends at Ronald Perelman’s swanky “Apollo in the Hamptons” concert in August.
Kraft took Blumberg to the Super Bowl festivities in Miami, but she did not join him at the JPMorgan billionaires summit late last week at the 1 Hotel in South Beach, attended by Prince Harry and Meghan Markle.
The friend revealed that Kraft got on well with the Duke and Duchess of Sussex and was, in fact, seated at their dinner table alongside Jennifer Lopez and Alex Rodriguez.
However, Blumberg has been a regular at the Gillette Stadium in Foxboro, Mass., to watch Pats games with Kraft, and has been a quick study in the rules of football.