Here is a referral for a transportation service that drives people to and from medical appointments and surgeries -- Driving Moms and Dads.
Here is their website: http://www.drivingmomdad.com. The phone number is 240 - 223 - 2418.
Why not just use Uber?
Will your Uber driver come up to the 3rd floor of a surgery center to retrieve you -- drugged-up post-surgery -- and walk you down to the vehicle? Will your Uber driver call you the day after your surgery and ask you how you are doing? Likely not.
So consider Driving Moms and Dads.