

Dermatology
Mary Louise Lenahan, MD
East Amherst, NY
Dr. Mary Louise Lenahan is a Buffalo native and third generation doctor. She graduated from medical school in 1979, and completed her residency in dermatology at SUNY Buffalo. In 1985, Dr. Lenahan opened her private practice in Buffalo and has been treating patients with care for the past 26 years. She is currently the Chief of Dermatology for the Catholic Health System, a fellow of the American Academy of Dermatology, and a member of the Buffalo-Rochester Dermatology Society. Dr. Lenahan has al
45+
Years in Practice
Peer Recognition
- Castle Connolly — Top Doctor
2007-2026 (20 years)
- Healthgrades — Healthgrades Honor Roll
Clinical Focus
Subspecialties
Procedural Dermatology
Conditions & Treatments
Cosmetic DermatologySkin CancerPhototherapy
Practice Details
Hospital Affiliations
- Kenmore Mercy Hospital
- Kaleida Health
- Sisters of Charity Hospital
- UPMC Presbyterian
Experience
45+ years in practice