Oliver Mustafa Oz, born July 2, 1999, is the youngest child and only son of Dr. Mehmet Oz and Lisa Oz. He graduated from Columbia University’s Vagelos College of Physicians and Surgeons in 2025, following his father’s footsteps into medicine.
Who Is Oliver Mustafa Oz
Oliver Mustafa Oz was born on July 2, 1999, making him 26 years old as of 2025. He is the youngest of four children born to television personality Dr. Mehmet Oz and author Lisa Oz. Unlike his sister Daphne Oz, who built a public television career, Oliver chose a more private path focused on medicine.
His middle name, Mustafa, honors his paternal grandfather, who was a distinguished cardiothoracic surgeon in Turkey before immigrating to the United States. The name connects Oliver to his Turkish heritage and family medical legacy.
Oliver is listed as a resident of Palm Beach, Florida, at 124 Clarke Avenue and is registered with the Republican Party of Florida. He divides his time between Florida and his family’s Pennsylvania farm, where he pursues interests in farming and fishing.
Education Path From Harvard to Columbia
Oliver attended Dwight Englewood School in New Jersey, where he participated in the tennis team before graduating and enrolling at Harvard University. At Harvard, he completed a Bachelor’s degree in Human Developmental and Regenerative Biology.
After Harvard, Oliver entered Columbia University’s Vagelos College of Physicians and Surgeons in 2021 as part of the Class of 2025. He graduated in 2025, becoming the newest Dr. Oz in the family. His father announced the graduation on social media, noting that Oliver followed in the footsteps of his father and both grandfathers by taking the Hippocratic Oath.
The Columbia medical program is the same institution where his father served as a professor of surgery from 2001 until retiring as professor emeritus in 2018. This connection gave Oliver unique insights into the medical field from an early age.
Family Background and Siblings
Oliver’s father, Mehmet Cengiz Oz, was born June 11, 1960, in Cleveland, Ohio, to Turkish immigrants Mustafa and Suna Öz. His paternal grandfather Mustafa graduated at the top of his class from Cerrahpaşa Medical School in Turkey in 1950 before moving to the United States for medical training.
Oliver has three older sisters: Daphne Oz (born February 1986), Arabella Sezen Oz, and Zoe Yasemin Oz. He is the only brother among the four siblings. Each sister has carved her own path. Daphne became a television host and author, Arabella works as a therapist after a brief acting career, and Zoe co-founded Kairos as chief marketing officer.
Through his eldest sister Daphne, who married John Jovanovic in 2012, Oliver is an uncle to four nieces and nephews: Philomena, Jovan Jr., Domenica, and Giovanna. Family photos show Oliver as an attentive uncle who enjoys spending time with his nieces and nephews.
Marriage to Katie Ballantine Flinn
Oliver and Katie Ballantine Flinn began dating in February 2021, making their relationship public on social media that same month. The couple met while both were students at Columbia University pursuing their medical degrees.
Oliver proposed to Katie in June 2022 on a beach, and they celebrated their engagement with an outdoor party in September 2022. The engagement photos showed a relaxed Oliver in a light pink shirt and khaki pants, with Katie in a white dress.
The couple married on September 24, 2023, in Kennett Square, Pennsylvania, in a church ceremony attended by family and close friends. Dr. Mehmet Oz shared photos from the wedding on social media, calling Katherine his son’s “perfect match” and noting that his own marriage had been the best decision of his life.
The wedding brought together the entire Oz family, with all three of Oliver’s sisters in attendance. The ceremony was intimate rather than lavish, reflecting Oliver’s preference for privacy.
Medical Career and Interests
Before medical school, Oliver worked as an intern at Aisling Capital from January to August 2018 and later at Concordia from June to September 2019. These experiences in healthcare investment gave him exposure to the business side of medicine.
At his 2025 graduation from Columbia Medical School, Oliver took the Hippocratic Oath, officially joining three generations of doctors in his family. Both his father and both grandfathers were physicians, creating a strong medical legacy.
Oliver’s specific medical specialty remains undisclosed as of 2025. He is likely beginning his residency training, though he has not publicly shared which field of medicine he will pursue or where he will complete his residency.
Life Beyond Medicine
Oliver describes himself as a novice farmer and fisherman on his social media profiles. He regularly shares photos from the family’s Pennsylvania farm, where he works with cows, goats, and horses. His Instagram bio reflects this dual identity as both a medical professional and someone who values rural life.
Oliver and his father share a love of fishing and often take trips together. Social media posts show them catching various types of fish, demonstrating a shared hobby that strengthens their bond. They also share a preference for meat and cooking, which Oliver’s father mentioned during an appearance on The Dr. Oz Show.
During one memorable Dr. Oz Show appearance, Oliver and his father prepared grilled steak and cauliflower mash for the audience. Oliver revealed that he and his father loved meat and cooking, while his mother and sisters preferred vegetables, leading to frequent food debates at home.
Privacy and Public Life
Oliver maintains a significantly lower public profile than his famous father and sister Daphne. He appears occasionally in family social media posts but does not court media attention or build a personal brand around the Oz name.
In April 2025, Oliver attended his father’s swearing-in ceremony as Administrator of the Centers for Medicare and Medicaid Services at the White House. During the ceremony, his niece Philomena fainted, and Oliver was seen helping escort her out of the Oval Office while his father provided medical attention.
This incident demonstrated Oliver’s supportive role within his family while staying out of the spotlight. He attends significant family events but avoids solo media appearances or interviews.
Oliver Oz Height, Physical Appearance
Oliver stands approximately 6 feet tall, similar to his father’s height of 6 feet 1 inch. He has dark hair and features that resemble his father’s. Photos from his wedding and family gatherings show a fit young man who stays active through outdoor activities.
Political Affiliation
Public records show Oliver registered as a Republican Party member in Florida. This aligns with his father’s 2022 Senate campaign as a Republican candidate in Pennsylvania, though Oliver has not been politically active in public forums.
His political views remain private, consistent with his overall approach to public life. He supported his father during the 2022 Pennsylvania Senate race but did not campaign publicly.
Comparison Table: Oliver Oz vs. Father Dr. Mehmet Oz
| Aspect | Oliver Mustafa Oz | Dr. Mehmet Oz |
|---|---|---|
| Birth Year | 1999 | 1960 |
| Undergraduate | Harvard (Biology) | Harvard (Biology) |
| Medical School | Columbia P&S (2025) | UPenn (1986) |
| Career Path | Early medical career | TV personality, surgeon, CMS Administrator |
| Public Profile | Private, limited media | High-profile television and political career |
FAQs About Oliver Mustafa Oz
How old is Oliver Mustafa Oz?
Oliver Mustafa Oz was born July 2, 1999, making him 26 years old in 2025.
Is Oliver Oz a doctor?
Yes, Oliver graduated from Columbia Medical School in 2025 and is now officially a physician.
Who is Oliver Oz married to?
Oliver married Katie Ballantine Flinn on September 24, 2023, in Pennsylvania.
Where did Oliver Mustafa Oz go to college?
Oliver attended Harvard University for undergraduate studies and Columbia University Vagelos College of Physicians and Surgeons for medical school.
Does Oliver Oz have siblings?
Oliver has three older sisters: Daphne Oz, Arabella Sezen Oz, and Zoe Yasemin Oz.
