HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / CA

RYAN TIERNAN

PHYSICIAN ASSISTANT

Graduated: 2024

NPI: 1306647789

Practice Locations (2)

9729 TOUCAN AVE

FOUNTAIN VALLEY, CA 927085836

2515 CRESCENT ST, FL 2

ASTORIA, NY 111024370

Source: CMS National Downloadable File, September 2026.

RYAN TIERNAN | HealthCareAtlasUSA