In case the OP hasn't seen this 1885 obit, which also lists his qualifications:
Baker, Robert Large (1820 - 1885)
Identifier: RCS: E000739
Date of Birth: 1820
Place of Birth: Essex
Date of Death: 21 May 1885
Place of Death: Leamington, UK
Occupation: General surgeon
Titles/Qualifications:
MRCS March 26th 1841
FRCS May 9th 1861
LSA 1841
MD St Andrews 1866
Details:
A native of Essex. Educated at St Bartholomew’s Hospital; acted as House Surgeon at the Essex and Colchester Hospital, and afterwards practised at 113 High Street, Bordesley, Birmingham, becoming a Director of the Birmingham Medical Benevolent Society. He retired to Leamington in 1870, and was an active member of the Warneford Hospital Committee and a member of the Jephson Gardens Committee, where his knowledge of botany was of much service.
He died at Barham House, Leamington, on May 21st, 1885.
Author: Royal College of Surgeons of England
Publication Date: 3 November 2009
Collection: Plarr's Lives of the Fellows