I called their eye center and a staff named Bianca yesterday and left her a message. She emailed me back later yesterday saying they hope to know Dr. Hertle's new contact info around the beginning of summer! The number I called is 412-692-6828.
Dear Sandicone, this is very different from what you heard. Can you please let us know what number you called and which staff you talked to if you remember? Different sources might have different info, I guess. Thanks!