An important message to our patients

I am writing to share deeply painful news with you.

Dr. Jack O'Brien, Co-founder of Haven Health and the Physician so many of you know and love, passed away on June 27, 2026. He was 36 years old. The Haven team is still processing this loss, and we know many of you will be too.

Jack had a gift for making people feel seen. It's what drew him to medicine in the first place, and it's what made him such a remarkable physician. He was extremely proud to be a Board-Certified Family Medicine Physician and HIV Specialist devoted to LGBTQ+ health. But if you were his patient, you already know that. You know the way he remembered the details of your life. The way he filled a room with laughter. The way he made you feel like the most important person in it.

Jack’s form of care was the inspiration to build something bigger than himself. He co-founded Haven Health with Matty Brownell and me, built around the kind of care he believed every person deserved. His dream was for Haven to grow wide and impact as many lives as it could.

Haven will continue. Matty and I are committed to carrying forward the work the three of us started together and to keeping Jack's vision for this practice alive. 

We apologize for the temporary disruption to your care and ask for your patience over the coming weeks. If you were a patient directly under Dr. O’Brien’s supervision, we will follow up next week with additional information on continuity-of-care options and next steps should you wish to transfer your records elsewhere. We anticipate resuming patient-facing operations on Wednesday, July 8th, with Jake Collins, PA-C, and Sharla Blakely, our Medical Assistant. 

Details on a Celebration of Life and ways to honor Jack's memory will be shared once plans are finalized. Given how many lives he touched, we expect it to be a big one. If you know of a venue, space, or resource that could help us plan something worthy of him, we'd love to hear from you. You can reach us at help@havenhealth.care.

–

Mike Piscadlo

Co-Founder & CEO, Haven Health

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