Mark Lawrence Riggenbach

Mark Lawrence Riggenbach is a workers' compensation defense attorney with Coleman, Chavez & Associates, LLP. He was admitted to the State Bar of California on June 3, 2002, and holds an active license under bar number 219382 ^[1]. His State Bar record lists his office at the firm's Roseville location at 1731 E Roseville Parkway ^[1]. He is also licensed to practice law in Texas, where he was admitted in April 2022 ^[2].

Riggenbach has been a senior associate attorney with Coleman, Chavez & Associates since September 2025 and has more than two decades of experience representing employers, insurers, and third-party administrators in all aspects of California workers' compensation ^[2]. His experience includes defending discrimination claims under California Labor Code section 132a as well as allegations of serious and willful misconduct under Labor Code section 4553 ^[2]. He has argued before the California Court of Appeal, Third Appellate District, and has prepared and presented seminars on topics ranging from liens and commutations to legislative and case-law updates.

He grew up in Denver, Colorado, and received his undergraduate degree in business administration, with an emphasis in marketing, from the University of Colorado at Denver in 1992 ^[2]. Before law school he managed a business in the construction materials industry. He earned his Juris Doctor from the University of the Pacific, McGeorge School of Law in December 2001 ^[2].

Coleman, Chavez & Associates is a California firm whose practice centers on workers' compensation defense, serving employers and claims administrators from offices around the state ^[2].