Yes. While there's no IRS literature specifically mentioning hotel parking fees, both of those would definitely be deductible if they fall within the $50 per person per night maximum hotel allowance. There's also no limit to hospital and doctor parking fees and tolls.As a matter of fact, even the mileage, parking and tolls to pick up prescriptions would be deductible.
From the IRS:
You can include in medical expenses the cost of meals and lodging at a hospital or similar institution if a principal reason for being there is to receive medical care. See Nursing Home , later.
You may be able to include in medical expenses the cost of lodging not provided in a hospital or similar institution. You can include the cost of such lodging while away from home if all of the following requirements are met.
The lodging is primarily for and essential to medical care.
The medical care is provided by a doctor in a licensed hospital or in a medical care facility related to, or the equivalent of, a licensed hospital.
The lodging isn't lavish or extravagant under the circumstances.
There is no significant element of personal pleasure, recreation, or vacation in the travel away from home.
The amount you include in medical expenses for lodging can't be more than $50 for each night for each person. You can include lodging for a person traveling with the person receiving the medical care. For example, if a parent is traveling with a sick child, up to $100 per night can be included as a medical expense for lodging. Meals aren't included.