I am filing a part year residence tax return for the State of Massachusetts. I have a 1095.c to show I am on my father's insurance. Not able to enter on Ma tax form

Where can I enter it? they are asking for a ma number which my dad lives in Michigan.

State tax filing

Since you won't get a 1099-HC, it's your responsibility to determine whether your father's insurance meets MCC requirements. See here for more info (FAQs 6 and 7):

Then, complete the Health Insurance interview as follows:

Enter the insurance company name and your father's subscriber number, but leave the FID blank. When asked if you received a 1099-HC, answer "No". You may see an error during the state review, which you can ignore.