It’s not every day that a single name points to two people living entirely different lives — one a real estate developer whose last name became a global scandal, the other a psychiatrist writing about meditation and the mind. Mark Epstein, the property developer, has been active in New York real estate since the 1990s, while Dr. Mark Epstein has built a career blending Buddhism with psychotherapy. This article separates fact from confusion around both.
Notable identities: Two: property developer and psychiatrist ·
Relation to Jeffrey Epstein: Brother (property developer) ·
Professional focus: Real estate development / Buddhism and psychotherapy ·
Active since: 1990s (both) ·
Number of books written: Several (Mark Epstein MD)
Quick snapshot
- Mark Epstein is the younger brother of Jeffrey Epstein (Wikipedia (community encyclopedia))
- He has been a real estate developer since the 1990s (Wikipedia (community encyclopedia))
- He founded Ossa Properties and Dara Partners (Wikipedia (community encyclopedia))
- Amount of inheritance from Jeffrey Epstein (not publicly documented)
- Whether Mark Epstein has children (no public records)
- Exact net worth
- Precise current residence details
- 1990s: Mark Epstein begins real estate career (Wikipedia (community encyclopedia))
- 2019: His brother Jeffrey Epstein arrested and later dies (Business Insider (financial news outlet))
- 2024: Mark Epstein gives first major interview to The Guardian (The Guardian (British newspaper))
- Mark Epstein continues to develop real estate under Ossa Properties (The Real Deal (real estate trade publication))
- Dr. Mark Epstein likely continues writing and practicing therapy (The Real Deal (real estate trade publication))
- Legal and public interest in the Epstein estate may yield more disclosures (The Real Deal (real estate trade publication))
Six facts that define the Mark Epstein landscape, one pattern: two identities, one name, vastly different lives.
The table below maps the known facts for both men.
| Fact | Detail |
|---|---|
| Full Name | Mark Epstein (ambiguous) |
| Relation to Jeffrey Epstein | Brother (for the property developer) |
| Profession | Real estate developer / Psychiatrist |
| Known for | Being Jeffrey Epstein’s brother / Buddhism psychotherapy books |
| Active since | 1990s (both) |
| Notable works | Several books on Buddhism and therapy (psychiatrist) |
| Current status | Both active as of 2025 |
What does Mark Epstein do now?
Today, two men named Mark Epstein are active in separate fields. The property developer Mark Epstein continues to manage real estate ventures in New York, while Dr. Mark Epstein practices psychiatry and publishes books on mindfulness. Here’s what is known about each.
Where does Mark Epstein live?
- Mark Epstein the property developer is based in the United States, likely in the New York area, according to public records and business filings (Wikipedia (community encyclopedia)).
- Dr. Mark Epstein, the psychiatrist, practices in New York City, as indicated by his professional website and published works (Quebec Journal 24 (news media)).
The pattern: despite sharing a city, the two men move in entirely separate professional and social spheres.
Is Mark Epstein still involved in real estate?
- Yes. Mark Epstein founded Ossa Properties and Dara Partners, and as of 2025, his companies remain active in property development (The Real Deal (real estate trade publication)).
- Business Insider reported that he started in the arts before moving into New York real estate (
Additional sources
Related stories
Edward Davies Bennett is Editor-in-Chief and Responsible Publisher at Insight Britain, overseeing editorial standards, publication decisions and the corrections process.