May God bless you and your...
Looking forward to sharing a toast and trading stories in his memory during our upcoming visit. He is missed.
Sandi Cobb
November 18, 2025 | Friend


Ann Arbor, Michigan
Nov 23, 1955 – Aug 24, 2024
Oberdoerster, Mark11/23/1955 - 8/24/2024Ann ArborDr. Mark Christoper Oberdoerster was born in Zeist, Holland to parents Karen (Link) and Clarence Raymond Oberdoerster on November 23, 1955. Mark sadly passed away on August 24, 2024, while biking on his beloved backroads of Ann Arbor.Mark grew up...
Read MoreLooking forward to sharing a toast and trading stories in his memory during our upcoming visit. He is missed.
Sandi Cobb
November 18, 2025 | Friend
Still missing my Doctor O.
Debbie Lattner
November 17, 2025 | Other
Great guy, fortunate to have had him as my doctor.
Jim Hurst
November 17, 2025 | Other
I sure miss you! A great doctor and human being! RIP!
Ray K
November 17, 2025
To the family of Dr. O, wishing you memories that ease your loss and love that heals your sadness. He was a wonderful doctor and person.
Anonymous
February 21, 2025 | Other
Marc and I are so saddened to hear of Marks passing. We thought the world of him when we saw him on occasion as patients. We pray for comfort and peace for his family. Marc and Pam Cripe
Marc and Pam Cripe
October 14, 2024 | Other
My condolences to the family. I actually heard of his recent death from one of his patients at the veteran administration today and i was in shock. I first met Mark when he was working in IHA before he started his practice in partners in internal medicine. I was a resident at the time and had to do a rotation as part of the internal medicine training. I enjoyed his rapport with the patients and his empathy and compassion. He will be missed as he made the world better.
Kishor Patel
September 24, 2024 | Work
I just heard of Mark´s passing from a mutual friend. I am so sorry for his family´s loss. Mark and Debbie were my medical residents when I was an intern at Mt Sinai in the early 1980s. Mark made the practice of medicine fun, despite all the inherent stress. I will celebrate a life well lived. Claudia Cisar Chapek , MD
Claudia Chapek
September 22, 2024 | Work
I´m so sorry for your loss! I knew Mark for decades as I often swam in the lake next to him both at NCRB and in the summer at Racquet Club. His son Zach and my son Doug were on RX swim team together ages ago. I´ll miss seeing you at the pool Mark! What an adoring grandpa he was! And a wonderful human being.
Katie Freese
September 21, 2024 | Friend