Lidia Showing is one of 12 pathologists practicing in McAllen, Texas.
Lidia Showing practices with Gulf Coast Pathology Program PLLC, McAllen Gastroenterology Clinic LP, and Ralph Alhalel, P.A.
Updated August 2026. Practice locations and specialty come from the CMS Doctors and Clinicians file, the registry record from NPPES, and enrollment from CMS Medicare enrollment files. NPI records are corrected at the source, through NPPES.