Diego Andres Castellon, MD

Internal medicine physician in San Angelo, Texas · NPI 1306331665

Diego Castellon is one of 41 internal medicine physicians practicing in San Angelo, Texas. Diego Castellon practices with Shannon Clinic.

Registry record (NPPES)

NPI
1306331665
Type
Type 1 · Individual
Primary taxonomy
Internal Medicine, Infectious Disease · 207RI0200X
Address on file
120 E Harris Ave
San Angelo, TX 76903-5904
(325) 747-6741
Enumerated
Jun 28, 2018
Record last updated
Jun 30, 2025
License states listed
NY, TX

Medicare (CMS)

Enrollment
Medicare-enrolled in NY, TX
Infectious Disease, Internal Medicine
Revalidation due
No date set by CMS

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Practice locations

More internal medicine physicians in San Angelo

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.