Firm: (personal email — sole-practitioner), Mayor of Boulder City, Nevada
Career: Physician (board-certified family medicine, 35+ years). Boulder City resident since 1982. Served in the Nevada State Assembly from 2002 onward, then in the Nevada State Senate representing District 12 from 2010. Currently Mayor of Boulder City, Nevada. Listed as a non-paid lobbyist for the 83rd Session under his single client: City of Boulder City, Nevada — i.e., he is the elected mayor representing his city before the Legislature. (source)
Revolving-door pattern: Physician → State Assembly → State Senate → Mayor of Boulder City, now also registered as a non-paid lobbyist for that same city. Government-lobbying-government pattern, in this case via the elected mayor himself rather than via a contracted lobbyist.