The Monster Maker (1944) stars J. Carrol Naish (House of Frankenstein, Annie Get Your Gun, Rio Grande, Dracula vs. Frankenstein), Ralph Morgan and Tala Birell.
This video contains three films. The Monster Maker starts at about 1:57:50:
or watch it by itself, beginning 5 minutes into the video, here:
I didn't watch this one. I may come back it it sometime.