Is visible light considered a type of electromagnetic radiation?

yes
everything you mentioned is part of the EM spectrum

Visible Light = a range of wavelengths in the EM spectrum between IR and UV for which we have the capability to visually detect.
(If our eyes had adapted to UV wavelengths, we'd call those visible.)

Although visible light could theoretically induce radiation to a certain degree, I'd say it's not considered a form of electromagnetic radiation. Alpha, Beta, and Gamma radiation can all damage a human one way or another. Alpha radiation can penetrate the outer layers of our skin, Beta can penetrate and damage the deeper layers of our skin, and Gamma can penetrate so deep into our bodies that it can damage our internal organs.
Visible light can't penetrate our bodies; however, it may potentially cause other damages to us, our minds possibly?

yes visible light is composed of a bunch of beams of electromagnetic radiation spreading outward