MIDDLETOWN, NY (Oct. 16, 2026) — Garnet Health is pleased to welcome four experienced providers to its growing clinical team: Zachary Blome, PA-C; Brianna Campbell, PA-C; Hannah Doiron, PA-C; and Allison Kouloumbinis, MSN, APRN, FNP-BC.

Zachary Blome joins Garnet Health Doctors’ Trauma Program as a Physician Assistant. He earned his Master of Science in Physician Assistant Studies from the Medical University of South Carolina and brings a strong foundation in patient care developed through advanced clinical training and hands-on healthcare experience.
Blome will provide inpatient trauma coverage as a member of the trauma surgery team at Garnet Health Medical Center.
Brianna Campbell has joined Garnet Health Doctors as a Physician Assistant. She earned her Master of Science in Physician Assistant Studies from Marist University and holds a Bachelor of Science in Biology from the State University of New York at Cortland.
Campbell will provide inpatient care coverage in the Intensive Care Unit at Garnet Health Medical Center.
Hannah Doiron joins Garnet Health Doctors as a Physician Assistant in Urgent Care. She has a strong background in patient care and emergency medical services. She earned her Master of Science in Physician Assistant Studies from Stony Brook University and her Bachelor of Science in Biology, graduating summa cum laude from Binghamton University.
Doiron will provide urgent care services across all Garnet Health Urgent Care locations.
Allison Kouloumbinis has joined Garnet Health Urgent Care as a board-certified Family Nurse Practitioner, bringing extensive experience in critical care, travel nursing and outpatient family medicine. Kouloumbinis earned both her Master of Science in Nursing – Family Nurse Practitioner and her Bachelor of Science in Nursing from Mount Saint Mary College in Newburgh, New York.
Kouloumbinis will provide urgent care services across all Garnet Health Urgent Care locations.
To learn more about Garnet Health or to join our team, visit garnethealth.org.
About Garnet Health Doctors
Garnet Health is a New York State not-for-profit corporation headquartered in Middletown, New York, approximately 60 miles northwest of New York City. It is the corporate parent of Garnet Health Medical Center, Garnet Health Medical Center – Catskills, Garnet Health Doctors, Garnet Health Urgent Care, Garnet Health Foundation and Garnet Health Foundation – Catskills. Garnet Health employs more than 4,000 professionals and over 850 medical staff members.
Garnet Health Doctors is a large medical practice offering primary care and family medicine, urgent care, and a range of specialty services at multiple locations throughout Orange and Sullivan counties. Providers care for patients of all ages, from children to seniors, and also offer women’s health services.
All Garnet Health Doctors primary care offices have earned Patient-Centered Medical Home Recognition from the National Committee for Quality Assurance (NCQA), reflecting a strong commitment to patient-centered care and lasting relationships. In addition, their three urgent care locations are accredited by the Urgent Care Association, meeting the highest standards of quality and accessibility.