yes
Can an employer fire you even with doctors excuses?
Ask your employer if he is practicing medacine without a license, because that is basically what he is doing. Then talk to a lawyer.
Each employer's policy is different
That varies depending on the employer.
Yes, if it's on going. In British Columbia, Canada when a person is off work for three days or more an employer can ask for a doctors note. It's best to get a doctors note if possible because the doctor will only tell the employer that you are being treated, but won't tell the employer what you are being treated for (patient/doctor confidentiality.)
HMO medical insurance is insurance that is through the employer. It means they will only pay for certain things, and certain doctors as well. You can get a list, and doctors decide what qualifies.
I meant company not computer
They can ask you to elaborate and even ask for a doctors note
by starting won
You were diagnosed by your EMPLOYER? (???) If you mean you were diagnosed by doctors employed by, or under contract to, your employer, you would have to produce a written, signed diagnosis to the Workmans Compensation Board examiners. After considering your case, they could award you a percentage amount commensurate with your disability.
Certainly. The rules for sick leave are decided by the employer and are unregulated. Employers need not accept doctors' notes.