Notorious Hamptons party crasher breaks silence after being named and shamed: Her truth about 'fake' Cartier claims... and the very catty 'feud' she says is behind it ALL

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She was put on blast in a scathing article detailing her reportedly years-long 'grift' among America's East Coast elite. 

Now, the so-called 'imposter' accused of duping the Hamptons jet-set is telling her side of the story. 

In an interview with the Daily Mail, Andrea Bartzen, who is accused of crashing exclusive parties, cultivating high-society connections under false pretenses and spinning it all into a business empire, is now fighting back.

Responding to a recent New York Magazine story about her life, she says she is the target of a calculated smear campaign from someone in her social circle. 

The magazine's profile paints a scandalous tale. 

It claimed that, in 2024, Bartzen had added Cartier to her name in order to appear to have generational wealth as the heiress of the famed jewelry company. A post that is still pinned to her Instagram claims her grandmother was Mary Cartier Bartzen, her 'beloved grandmother who was just like Jackie O.'

Now, in her first response to the embarrassing article, 60-year-old Bartzen is coming out swinging. 

She denies the core allegations and presents her suspicion that the article was the work of a Hamptonite she is feuding with. 

'None of it is true,' Bartzen said. 

Andrea Bartzen attends Rand Luxury Invites You To The Hamptons Concours in 2024 

Bartzen and Matthew Rockefeller. The former couple met in 2024 and regularly mingled with high-net-worth individuals. But 'Rockefeller' himself was later accused of using a phony name

As Bartzen tells it, she really is the high-flying socialite and businesswoman she's accused of posing as. 

She says she does run Global Passion Projects, a company whose mission is to 'connect visionaries, investors, and change-makers worldwide.'

Its website boasts of events the company has allegedly hosted, including Hedge Fund Week Yacht Soirée and an Art Basel Think Tank.

'I came in at the top,' she said.

According to Bartzen, her entry into high society was not manufactured, it was always meant to be. 

She described moving to New York after becoming engaged to a man from what she characterized as 'one of the top banking families in New York City,' with ties to institutions like banking firm Salomon Smith Barney.

That man identifies himself as Matthew Rockefeller. The former couple met in 2024, became inseparable and regularly mingled with high-net-worth individuals. But 'Rockefeller' himself was later accused of using a phony name. 

His real name, the New York Magazine article alleges, is Matthew Tomasko and he's a former magician.

Through that relationship, Bartzen said, she was immersed in influential networks spanning finance, healthcare and philanthropy from the Hamptons to Palm Beach. 

'He had 30 years of relationships. I was in all circles all at once as soon as I moved into New York,' Bartzen said. 

'I didn't even fully appreciate it at the time. I was just like, "This is like a Wall Street movie."

'I knew everybody. I was invited to every party,' she said. 

'I'm a private citizen. I have a completely clean record in every respect. I never committed a crime. I don't even have a traffic ticket.' 

The engagement to Rockefeller was short-lived and collapsed last year, but Bartzen also described to the Daily Mail a 25-year career in advertising and consulting, claiming she worked at - and eventually led - top agencies in New York City, focusing on 'healthcare strategy' for 'major pharmaceutical companies.' 

Taylor Materio, Prince Mario Max Schaumburg-Lippe and Rolise Rachel (right) at a party in New York in 2023

'I worked my ass off,' she said. 'I worked on some of the top pharmaceutical brands.'

When asked to name the brands, she declined.

From there, she said she transitioned into management consulting before launching her own firm, where she advised biotech companies on 'communications and fundraising.' 

That work, she explained, brought her into the world of family offices.

'It's a whole category of investor,' she said. 'High net worth people with capital to invest.'

Crucially, she emphasized that her position in that world was built on long-term trust. 

'I had real relationships of 10 years or more,' she said. 

Relationships, she said, another woman was out to destroy. Enter Rolise Rachel.

Bartzen insists the real story is that she was allegedly targeted by Rachel for her contacts and connections. 

'She wanted contacts from years of my hard work,' she said. 

Bartzen alleged that the woman had access to her list of high-net-worth contacts and sought to leverage the relationships to gain credibility. 

'She wanted my life,' Bartzen said. 'She wanted to borrow my credibility of 25 years.' 

According to Bartzen, the woman initially approached her as an acquaintance but later became fixated on her, monitoring her social media and inserting herself into her professional network.

'They're creating this story that I'm a party crasher and I turned that into a business, that's a complete fallacy,' she said. 

Rachel did not respond to the Daily Mail's request for comment. 

Bartzen also rejected the implication that her job is fake. 

Bartzen is pictured front, second from right, attending the Diabetes Research Institute Foundation Hamptons Garden Gala at a private residence in Water Mill, NY, in 2024

'My business is a convergence of social and business,' she said. 'I make business fun, but I work hard.' 

Despite the accusations, Bartzen expressed hesitation about engaging with her critics. 

'I do not want a tit-for-tat, mud-slinging story with pigs in the mud,' she said. 

As for the 'fake' Cartier allegation, Bartzen maintains that she really is an jewelry heiress, though suggested that responding point-by-point to the New York Magazine article or to the individual she accuses would only amplify what she views as a false narrative.

'The fact that I have to justify my existence is not the way I want to tell the story,' she said. 

A spokesperson for New York Magazine stood by the article when contacted by the Daily Mail. 

'This story was deeply reported and carefully fact-checked. Any suggestion that we paid sources is false,' they said. 

And despite what Bartzen claims, the talk in Hamptons circles is that she allegedly sneaks into exclusive Hamptons parties and luxury brand events uninvited in order to have access to real wealth and power.

'I see her everywhere. Everyone knows her tricks, it's a joke at this point. She'll wait for someone she knows and walk in with them or she will push back at the person with the list in such a rude way, they just give up and let her in,' said one East Hampton source. 

Bartzen even reportedly crashed a wedding of a couple she didn't know recently at the Flagler Museum in Palm Beach, trying to pass herself off as a friend of the bride until she was caught.

Sharon Bush and Andrea Bartzen attend French Heritage Society 2026 Palm Beach Gala Dinner at Club Colette on February 15, 2026 in Palm Beach, Florida

'She crashed my wedding lol (I would say unsuccessfully since she was kicked out before my husband and I could even make it to cocktail hour),' the bride said.

'We wanted it to keep it as intimate as possible so everyone invited had to know us personally. We had 160 people so it was still a good size where she could have maybe gotten away with it if she had some sort of plan but it was obvious she didn't.

'My friends spotted her right away because she and her friend stuck out like sore thumbs lingering by the entrance to our cocktail hour dressed in what looked like golf outfits.'

When asked about crashing the Palm Beach wedding, Bartzen admitted 'some claims' may be 'partly true.'

Bartzen did agree with one point in the magazine's portrayal, though she framed it very differently. 

'The only thing they did get right is I was like Carrie Bradshaw,' she said, referencing the protagonist of Sex and the City. 'I was riding at the top of the world.'

She described a life filled with invitations to high-profile events and dedicated philanthropy, again keeping the specifics of what she worked on to herself.

But despite her claims she is being smeared, the Daily Mail is told that just one week after the article was published, Bartzen crashed the private birthday party of a hedge funder in East Hampton. 

She even posed for photos.