A couple of observations:
Bear in mind that employment law and disability law can, from the employer’s perspective, be a minefield where you don’t know what might happen if you take the wrong step.
You did not mention your state of residence as that can greatly affect what your rights might be as an employee.
You appear to be working at a small employer, not many employees. I believe that the Americans with Disabilities Act does not apply to employers with less than 15 employees. State laws may be different.
You are also not going to be covered by the FMLA (Family something or other leave act) as your employer has less than 50 employees at this location, and I assume there are no other locations that might put you over the 50 employee threshhold.
You state that you are on disability, which I assume is short-term, Is it state provided or employer provided. In some states, employers are required to carry STD,or there is a state plan in effect. In some states disability is not mandatory and uncommon. Consider yourself lucky that you have it. My company is in a small town in southeastern North Carolina and many larger employers in our town do NOT carry it, but we pay it for our employees.
I am having a hard time understanding your boss’s point of view, especially in view of the office manager going out on maternity leave and the horror stories he is having juggling temporary help who don’t know what they are doing.
But BABO has a point: even if you are coming off an operation with an obvious disability and recuperation period, if you were to re-injure yourself and exacerbate your injury while on the job, you could have a claim for worker’s compensation because it happened at the workplace. Worker’s compensation premiums are based on three factors: salary, job classification and it’s associated rate (office clericals are rated lower than truck drivers for example) and the experience rating of the employer which is usually tracked on a scale of .88 to 1.30. The experience rating, if poor, can increase worker’s compensation premiums by up to 30% depending on the factor. And these rates also vary by state, California is going to be higher than Mississippi for example.
That may be a very real fear for your employer and might explain his behavior.
It could be something simple as he doesn’t want you back if you are not fully ready to work because he does not want to go through another period of disability leave if you something causes a setback for you if you are not fully recovered.
I would try to clear the air with this guy.
One other thing: you have every right to look for another job any time you want. You are not restricted because you are employed by this guy. If you are looking in the medical profession and it is an insular community in your town, you might want to be discreet. If you live in a mid-sized city , I wouldn’t worry about it.
But one word of caution, if you get another job offer and hold it in front of his face, he might react by congratulating you and wishing you the best of luck at the new place. Over the years I have learned that if someone threatens me with looking for another job, I am going to assume that I will lose that person at some point in the future. Some people may seek new jobs in order to get some leverage at their current workplace, but in the end if they are so dissatisfied that they go looking for something else, then they already have one foot out the door. That is my perspective as an employer, but everyone is different.
SRM