Interventional radiologist in Shenandoah, Texas · NPI 1154453355
Ryan Armstrong is one of 3 interventional radiologists practicing in Shenandoah, Texas. See all interventional radiologists in Texas.
Ryan Armstrong practices with Singleton Associates PA and Texas Endovascular Associates PLLC.
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.