Our Staff

Meet the DESSWO Team

Trisha Zeidan MD

Doctor

Dr. Zeidan is an endocrinologist serving the greater Dayton area since 2011. Their clinical work centers on collaborative, patient‑focused care with a strong emphasis on the treatment of diabetes mellitus. Dr. Zeidan supports patients in managing complex endocrine conditions through lifestyle guidance, weight‑management strategies, medication oversight, and the use of modern diabetes technologies.

Colleen Updyke APRN

Advanced Practice Nurse

Colleen Updyke, APRN, is an Advanced Practice Nurse specializing in endocrine care. She provides patient‑centered support with a focus on collaborative management of diabetes mellitus and other complex endocrine conditions. Colleen works closely with individuals to strengthen their skills in lifestyle modification, weight management, medication oversight, and the use of modern treatment technologies, ensuring comprehensive and accessible care.

Marlyinn Reed

Office Manager

Marlyinn Reed serves as the Office Manager, overseeing daily operations to ensure an efficient, organized, and welcoming environment for patients and staff. She coordinates administrative workflows, supports patient scheduling and communication, and maintains the smooth functioning of the practice. Marlyinn’s commitment to clarity, consistency, and teamwork helps create a positive experience for everyone who walks through the door.

Lindsey Martin

Medical Assistant

Lindsey Martin is a Medical Assistant who supports the clinical team by assisting with patient care, preparing exam rooms, and ensuring accurate documentation. She helps facilitate smooth visits by coordinating vital signs, patient intake, and follow‑up needs. Lindsey’s attention to detail and commitment to patient comfort contribute to an efficient and welcoming experience for every individual seen in the practice.

Grace Byers

Receptionist

Grace Byers serves as the Receptionist and is often the first point of contact for patients entering the practice. She manages front‑desk operations, including check‑ins, scheduling, and patient communication, ensuring each visit begins smoothly. Grace’s welcoming demeanor, organization, and attention to detail help create a positive and efficient experience for every patient.

Testimonials

What Our Patients Say

3.9 ★★★★★
Google Review us on Google
B

Brian Cardinal

Patient Review
Google Source
★★★★★

"Dr. Zeidan is an excellent endocrinologist and care provider. I actually enjoy going to see her and working on my health issues!!"

C

Candy Abrams

Patient Review
Google Source
★★★★★

"She's saved my life more than once. I trust her completely!"

J

Judi Desimio

Patient Review
Google Source
★★★★★

"Very good listener. Knowledgeable and friendly. Controlled A1c now. Would recommend to anyone."

S

Sam Murphy

Patient Review
Google Source
★★★★★

"Dr. Zeidan is excellent!!! My A1C was so high that it didn't read! We had discussions about my DM, how long, and what I've done. She was very understanding and caring!"

J

Jaime Brown

Patient Review
Google Source
★★★★★

"Very kind doctor I love Trisha!"

D

David Cox

Patient Review
Google Source
★★★★★

"Dr. Zeidan has done her part, and she has encouraged me to do my part in controlling my DM. She is keeping me dedicated to doing better."

Get In Touch

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Phone

Call us at (937) 356-9966

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Address

5250 Far Hills Avenue, Suite 150
Dayton, OH 45429

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Hours

Monday-Friday: 8:00 am - 4:30 pm