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Doctors / TX

NICHOLAS GASTON CALLIHAN, MD

EMERGENCY MEDICINE

Medical school: MEDICAL COLLEGE OF GEORGIA SCHOOL OF MEDICINE

Graduated: 2015

NPI: 1821482357

Practice Locations (2)

MEMORIAL HERMANN HOSPITAL BASED PHYSICIAN GROUP

1635 N LOOP W, MEMORIAL HERMANN EMERGENCY PHYSICIANS

HOUSTON, TX 770081532

7133386565

UT PHYSICIANS

6411 FANNIN ST

HOUSTON, TX 770301501

7137044000

Source: CMS National Downloadable File, September 2026.

NICHOLAS CALLIHAN, MD | HealthCareAtlasUSA