About DR MARTA BOGNAR PC. Dr Marta Bognar Pc is an internal medicine provider established in Gainesville, Georgia specializing in internal medicine (rheumatology) . The NPI number of Dr Marta Bognar Pc is 1598873754 and was assigned on August 2006. The practitioner's primary taxonomy code is 207RR0500X with license number 040320 (GA). The provider is registered as an organization and their NPI ....