It depends what you want really. Do you want a mathematically rigorous text, or just a fun calculus book that's not so serious mathematically?
If you want a book that is mathematically rigorous then there is Spivak's
Calculus, and also Courant and John's
Introduction to Calculus and Analysis. However, if you're not familiar with proofs or maybe you feel your mathematics is a bit rusty then you may find these books a bit much. On the other hand, you are a doctor so they probably shouldn't be beyond your reach. Spivak is more rigorous and challenging, Courant and John's exposition is more gentle and contains applications to physics which you might enjoy. Both books are great fun.
If you don't want a rigorous book then I recommend Morris Kline's
Calculus, which has the advantage of being cheap (but is a very good quality book. In general the price of a book has little to do with its quality.)
All the above books cover single-variable calculus, which is usually covered in one year.
Also check out the
https://www.physicsforums.com/forumdisplay.php?f=21" section. You can search the forum for old threads on a similar topic, which you may find helpful.