Former Mayor of Mercer Island. 20 years in healthcare reimbursement and tech leadership, driving efficiency for hospitals and governments.
Joined September 2010
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- Following 475
- Followers 206
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63 Photos and videos
Jan 7
Congratulations to Mayor Rosenbaum and Deputy Mayor Becker on stepping into leadership for Mercer Island, and thank you both for your service to our community.
Mercer Island has new leadership! City Council elected Councilmember David Rosenbaum mayor and Daniel Becker, newly elected to the Council, deputy mayor. They were sworn in along with Lisa Anderl & Ted Weinberg to begin their terms. Story: orlo.uk/budYn
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Jan 7
Congratulations to Dave Rosenbaum on your election as Mayor of Mercer Island for 2026 and 2027. You earned this through years of steady, thoughtful service, and I saw it firsthand when you served as Deputy Mayor during my time as mayor, your focus on what matters, collaborative style, and real dedication to our community always stood out. I’m excited for the leadership you’ll bring over the next two years. Mercer Island is in great hands. Congratulations, Dave.
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23 Dec 2025
Pay attention to this one. It is better to be prepared than need to go to a store that is closed for the holiday.
23 Dec 2025
⚠️ HIGH WIND WATCH: Wed AM–PM. Gusts 50-60 mph likely. Expect downed trees and power outages. Charge devices and secure loose objects. Report outages at pse.com/en/outage Stay updated: weather.gov/sew/
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15 Nov 2025
I’m honored to serve on Executive Elect Girmay Zahilay’s transition team. King County shapes so much of our daily life through transit, public health, safety, and essential services. The team is gathering ideas from across the region, and your voice matters. Share your thoughts at girmaytransition2025.com
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11 Nov 2025
Honored to serve on County Executive-Elect Girmay Zahilay’s transition team, helping shape a strong future for our region and ensuring King County government delivers for every community.
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28 Oct 2025
Three simple steps can make all the difference. Check your mailbox, fill in @GirmayZahilay for King County Executive, and drop off your ballot. Let’s build a brighter future together. Vote by Nov 4. #ElectGirmay
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17 Aug 2025
Thrilled to endorse @GirmayZahilay for King County Executive! His strong record on affordable housing, mental health, justice reform, and community investment makes him the leader King County needs. #ElectGirmay
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22 May 2025
Mercer Island condemns in the strongest possible terms the deadly antisemitic attack at the Capital Jewish Museum in DC. We stand unwaveringly with our Jewish community, diplomats, and all who champion peace and democracy. We must unite against hate, violence, and antisemitism. #StandUpToHate #NoPlaceForHate #MercerIsland #Antisemitism
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23 Oct 2024
🚴♂️ Riding on two wheels with a little electric boost? Make sure you’re familiar with local e-bike laws to keep everyone safe on our roads and trails! 🛴
Parents, talk with your kids about safe riding, helmet use, and understanding speed limits. Learn more: E-Bike and E-Scooter Safety. #SafetyFirst #MercerIsland #EBikeSafety
mercerisland.gov/publicworks…
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6 Oct 2024
Islanders, the draft 2024 Comprehensive Plan is ready for your review! It covers land use, housing, transportation, parks, and more—shaping the future of Mercer Island while respecting what makes it such a great place to call home. I’m confident it addresses the Island’s needs with both efficiency and vision.
View the plan and share your comments by 10/31: tinyurl.com/43ys4wnb. Your input is key as we approach adoption later this year!
#MercerIsland #ComprehensivePlan
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5 Oct 2024
Huge thanks to @MercerIslandPD and @MercerIslandGov for their outstanding support at this morning's Mercer Island High School Homecoming Parade. Congratulations to @mercerislandfb for their win against Newport! Go Islanders! 🏈 #MIHS #IslanderPride
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8 Aug 2024
Myself and Councilmember Jake Jacobson are jointly offering a $2,000 reward for information that leads to the arrest and filing of charges against the person or persons responsible for this crime. @MIReporter @KING5Seattle @KIRO7Seattle @komonews @fox13seattle @MercerIslandPD
8 Aug 2024
In response to the landscaping failure and subsequent investigation at the City’s property on Island Crest Way, Mercer Island Mayor @salimnice and Deputy Mayor David Rosenbaum issued a statement to the community today, August 8: mercerisland.gov/citycouncil…
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1 Aug 2024
#Breaking: SPU water supply line repairs on Mercer Island complete! Normal water use resumes. Kudos to SPU and Mercer Island Public Works crews for their swift, dedicated work. #MercerIsland #WaterRestored"
1 Aug 2024
Good (great!) news… repairs are complete and the SPU water supply line is back in service! This means Islanders can now resume normal water use.
Learn more on Let’s Talk: letstalk.mercergov.org/spu-w…
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31 Jul 2024
Join @MercerIslandPD on August 6th for National Night Out! Learn about the work our police do to keep our community safe, meet new Chief Chris Sutter, and enjoy some ice cream. See you at the MI Community Center! 🍦 #NationalNightOut #CommunitySafety
31 Jul 2024
Come get the scoop from MIPD leadership about what we are seeing in crime trends and crime prevention steps you should be taking. National Night Out - Tues, Aug 6, at the MI Community Center. Meet the new Chief, Chris Sutter. Most importantly: there will be ice cream.
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24 Jul 2024
Great news! A big thank you to @SeattleSPU and @mercergov Public Works teams for their outstanding work!
24 Jul 2024
Work is in the final stages for the SPU water supply line repair! SPU crews are now working on filling, flushing, and disinfecting the pipe before final testing can be completed. Get the full scoop on Let’s Talk: letstalk.mercergov.org/spu-w…
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14 Jul 2024
Big thanks to City Manager Jessi Bon and her incredible team at @mercergov for organizing a fantastic Summer Celebration! The day’s activities and the breathtaking fireworks at Luther Burbank Park were the true highlight. Our community deeply appreciates your dedication and hard work. #MercerIsland #Community #ThankYou
ALT Mercer Island Summer Celebration
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13 Jul 2024
Excited to welcome Chris Sutter, Mercer Island’s new Police Chief, who joined us at Summer Celebration today! Chief Sutter not only met many Islanders this morning but also became one himself as he recently moved to the island. #WelcomeChiefSutter #SummerCelebration
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13 Jul 2024
Had a great time at Mercer Island’s Summer Celebration this morning! It was wonderful to catch up with Senator Lisa Wellman, a true advocate for our community. Her dedication to education, local businesses, and the environment is inspiring. #SupportLisaWellman #SummerCelebration2024
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