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

JUSTIN C MARQUIS, PA

PHYSICIAN ASSISTANT

Graduated: 2000

NPI: 1891729422

Practice Locations (2)

GRAYBILL MEDICAL GROUP INC

225 E 2ND AVE

Escondido, CA 920254212

GRAYBILL MEDICAL GROUP INC

225 E 2ND AVE

ESCONDIDO, CA 920254212

8662282236

Source: CMS National Downloadable File, September 2026.

JUSTIN MARQUIS, PA | HealthCareAtlasUSA