

Dermatology
Ryan Johnson, MD
Princeton, NJ
Dr. Ryan Johnson was born in Minnesota and grew up in Arizona. He earned his medical degree from the Ohio State University. His dermatology residency was in San Antonio, TX while on active duty in the U.S. Army. After his military service, Dr. Johnson completed a fellowship in procedural dermatology specializing in Mohs surgery and cosmetic dermatology. He is excited to join St. Luke's Dermatology.\nDr. Johnson is board certified and a member of the American Academy of Dermatology, American Soci
20+
Years in Practice
Peer Recognition
- Castle Connolly — Top Doctor
2017-2026 (10 years)
- Healthgrades — Healthgrades Honor Roll
Clinical Focus
Subspecialties
Mohs Micrographic Surgery
Conditions & Treatments
MelanomaSkin CancerMohs SurgerySkin Cancer SurgeryBasal Cell CarcinomaSquamous Cell Carcinoma
Practice Details
Hospital Affiliations
- St Lukes Hospital Bethlehem
Experience
20+ years in practice