What is the man’s occupation?

W: Here are the medical charts of your patients for this afternoon. Is there anything else you need, Dr. Lester? (68)
M: Thank you, Jane. And yes, I do need you to take a walk down to the X-ray room to get Mr. Chow’s X-rays for me. (69)But before you do, could you ask the next patient to come in, please?
W: Your next patient, Ms. Jackson, is not here yet. She called about an hour ago from her accountant’s office and said she might be delayed a little. Should I send in Mr. Peterson first?(70)
M: Yes, please ask him to come in.(70)Also, could you call up my insurance agent, Mr. Harris, after you pick up the X-ray film and tell him that I’d like to see him tomorrow morning?