Doctor Fischer of Geneva has 140 pages.
Where There Is No Doctor has 512 pages.
The Doctor Is Sick has 261 pages.
The Doctor In War has 481 pages.
The Blood Doctor has 400 pages.
Doctor Omega has 258 pages.
Death of the Doctor has 128 pages.
Doctor Glas has 150 pages.
Doctor Sax has 245 pages.
The Collector Collector by Tibor Fischer has 272 pages in the Penguin edition.
The Fall of Doctor Onslow has 218 pages.
Doctor De Soto has 32 pages.
Doctor's Orders - novel - has 291 pages.