Our Barrett & Geiss Dermatology Provider Team

Our skin care experts focus on providing the highest quality of care possible and an optimal patient experience. At Barrett & Geiss Dermatology, our providers specialize in diagnosing, managing, and treating skin, hair, and nail conditions for patients of all ages.

Meet Our Dermatologists

Angela S. Casey, MD
Barrett & Geiss - Granville
2000 Newark Granville Road, Suite 202 Granville, OH 43023
Brian Biernat, MD
Barrett & Geiss - Granville
2000 Newark Granville Road, Suite 202 Granville, OH 43023
Michael C. Duffey, MD
Barrett & Geiss - Granville
2000 Newark Granville Road, Suite 202 Granville, OH 43023

Meet Our Physician Assistants

Jamie Weaver, PA-C
Accepting New Patients
Barrett & Geiss - Lancaster
1566 Monmouth Street, Suite 201 Lancaster, OH 43130
Michael Snedeker, PA-C
Accepting New Patients
Barrett & Geiss - Granville
2000 Newark Granville Road, Suite 202 Granville, OH 43023

Meet Our Founding Dermatologists (Retired)