The RegistryCounty Roster · Surnames Treadwell – Zwirn
Workers' Compensation Attorneys in Los Angeles County, Treadwell – Zwirn
203 attorneys on the official State Bar of California roll whose surname falls between Treadwell and Zwirn, holding an active license, a workers' compensation practice area, and an address of record in Los Angeles County. One of 11 surname sections covering 2,246 attorneys county-wide.
Workers' Compensation matters arising here are ordinarily heard at the Superior Court of California, County of Los Angeles, seated at Los Angeles. The filing deadline is one year from injury to file a workers' compensation claim (Cal. Lab. Code § 5405). Listings are in surname order — neutral, never ranked. The choice is always yours.
Workers' Compensation · Los Angeles County · Treadwell – Zwirn
| Attorney | Firm | City | Bar number | Admitted |
|---|---|---|---|---|
| Semial R. Treadwell | — | Calabasas | #97902 | 1981 |
| Seth A. Trejo | AmTrust North America | Woodland Hills | #238573 | 2005 |
| Jennifer M. Trevino | Morgan Leahy | Agoura Hills | #311254 | 2016 |
| Dennis R. Triplett | Law Office of Dennis Triplett | West Hollywood | #143490 | 1989 |
| Christopher J. Trodden | Pennington & Trodden, P.C. | N Hollywood | #169240 | 1993 |
| Hugo Troncoso | LAW OFFICE HUGO TRONCOSO | Glendale | #69481 | 1976 |
| Thomas D. Trutanich | TruSource Legal | West Hollywood | #279912 | 2011 |
| Jennifer W. Tsai | Mavredakis Phillips | Pasadena | #231132 | 2004 |
| Mariam Tsaturyan | Avagyan Law Firm | Glendale | #303259 | 2015 |
| Alexander TsimanisState Bar certified specialist | Law Office of Alexander Tsimanis, APC | Inglewood | #228312 | 2003 |
| Lena W. Tsui | State Compensation Insurance Fund | Glendale | #207478 | 2000 |
| Derek S. Tucker | Law Offices of Derek Sean Tucker, Esq. | Woodland Hills | #276728 | 2011 |
| Robert D. Tulk | Colantoni Collins Marren Phillips & Tulk | Los Angeles | #263089 | 2009 |
| Aaron S. Turchin | — | La Crescenta | #181545 | 1995 |
| Carol N. Turetsky | — | Culver City | #103828 | 1982 |
| Adam J. Turner | Lewis, Marenstein, Wicke, Sherwin & Lee | Woodland Hills | #232680 | 2004 |
| Philip R. Tuyay | ROAN TUYAY LAW APC | Pasadena | #290771 | 2013 |
| Jasmeen A. Ubhi | The Law Office of Jasmeen A. Ubhi | Northridge | #259336 | 2008 |
| Carmen C. Ulibarri | Law Office of Carmen C Ulibarri, APC | Commerce | #236242 | 2005 |
| Adrian R. Ulloa | WCA Law Group | Glendale | #326899 | 2019 |
| Graham J. Ulyshen | Okhovat Law Firm | Sherman Oaks | #350412 | 2023 |
| David T. UngarState Bar certified specialist | Chernow, Pine & Williams | Van Nuys | #189201 | 1997 |
| Keerti Uppalapati | Abramson Labor Group | Burbank | #362886 | 2025 |
| Martin M. Urban | Urban Law, Inc. | Montebello | #296674 | 2014 |
| Moises K. Urquilla | — | Glendale | #335727 | 2021 |
| Atley A. Usher Jr. | Law Offices Ulric EJ Usher | Lancaster | #330386 | 2020 |
| Ulric E. Usher | Law Offices of Ulric EJ Usher, Esq. A PC | Lancaster | #201908 | 1999 |
| David Alan Utley | Samuelsen, Gonzalez, Valenzuela & Brown | Long Beach | #80774 | 1978 |
| Stephen A. Vaccaro | Stockwell, Harris, Woolverton & Fox | Los Angeles | #300882 | 2014 |
| Maral Vahdani | Law Offices of Natalie Kaplan | Woodland Hills | #281249 | 2011 |
| Jessica K. Valdez | Gurvitz & Marlowe, LLP | Woodland Hills | #361921 | 2025 |
| Alicia E. Valencia | Llarena, Murdock, Lopez & Azizad APC | Pasadena | #283555 | 2012 |
| Giovanni ValenciaState Bar certified specialist | Valencia & McWhorter | Culver City | #222002 | 2002 |
| Ashly Valenzuela | — | West Hollywood | #329986 | 2019 |
| Daniel Frank ValenzuelaState Bar certified specialist | Samuelsen, Gonzalez, Valenzuela & Brown, | Long Beach | #104090 | 1982 |
| Elizabeth Ramona ValenzuelaState Bar certified specialist | Valenzuela & Ginzburg | Sherman Oaks | #118440 | 1985 |
| Regino M. Valenzuela | Younessi Law | Los Angeles | #218862 | 2002 |
| Edward Valle | Mavredakis Paik | Pasadena | #267162 | 2009 |
| Eleen Y. VallejoState Bar certified specialist | Bernal Law Group PC | North Hills | #195139 | 1998 |
| Allen C. Van Camp | Karlin, Hiura & LaSota | Arcadia | #126443 | 1986 |
| Amy C. Vanderwood | Mavredakis Paik | Pasadena | #229970 | 2004 |
| Rachael E. Van Ost | Silberman & Van Ost, LLP | Long Beach | #329824 | 2020 |
| Martiros Vardanyan | — | N Hollywood | #327174 | 2019 |
| Erika L. D. VargasState Bar certified specialist | Gordon, Edelstein, et al | Los Angeles | #232972 | 2004 |
| Aurora Vasquez | Stockwell Harris Woolverton & Fox | Los Angeles | #136979 | 1988 |
| Moises Vazquez | — | Whittier | #97307 | 1981 |
| Sara Autumn Vazquez GrumleyState Bar certified specialist | Albert & MacKenzie | Agoura Hills | #267324 | 2009 |
| Ryan J. Vego | Glauber Berenson Vego | Glendale | #286131 | 2012 |
| Jazmin A. Velasco | Law Offices of Ali Azarakhsh | Studio City | #344733 | 2022 |
| Hugo E. Velazquez | Law Offices of Velazquez & Hicks, APC | Long Beach | #156718 | 1991 |
| Ana Maria Vellanoweth | workers compensation appeals board | Marina del Rey | #108633 | 1983 |
| Sharon L. Velzy-Lenington | DEPT OF INDUSTRIAL RELATIONS/DWC | Van Nuys | #153506 | 1991 |
| Jenny K. Verduzco | Karlin, Hiura & LaSota, LLP | Arcade | #255111 | 2008 |
| Elin Vernis | Legal Corner Law Office, APC | Glendale | #367899 | 2026 |
| Paula Tripp Victor | Biola University | La Mirada | #113050 | 1984 |
| David M. Villalvazo | Aziz & Associates | Diamond Bar | #329093 | 2019 |
| Richard Villasenor | Law Offices of Richard Villasenor | Sherman Oaks | #140573 | 1989 |
| Jeffrey T. Vistro | State of California | Van Nuys | #322851 | 2018 |
| Vano Vladi | VLADI LAW GROUP, APC | Granada Hills | #305262 | 2015 |
| Sophia T. Vo | Tobin Lucks LLP | Pomona | #317175 | 2017 |
| Thaiphong T. Vo | Chong Legal Group | Chatsworth | #275849 | 2011 |
| Leeron Volk | Tobin Lucks, LLP | West Hills | #309648 | 2016 |
| Michael H. Volk | TOBIN � LUCKS LLP | Woodland Hills | #327077 | 2019 |
| Martin Raymond VonMizener | — | Whittier | #107327 | 1982 |
| Elliott Joseph Wachtel | Wachtel Law | Los Angeles | #107112 | 1982 |
| Jessica N. Wachtel | Wachtel Law | Los Angeles | #296675 | 2014 |
| Sean E. Wachtel | Wachtel Law | Los Angeles | #265476 | 2009 |
| Theodore M. Wachtel | Natalie Kaplan | Woodland Hills | #224843 | 2003 |
| Daniel C. WagnerState Bar certified specialist | Newhouse and Creager, LLP | Calabasas | #214188 | 2001 |
| Bonnie Y. Wai | Wai, Connor & Hamidzadeh, LLP | Los Angeles | #132955 | 1987 |
| Matthew J. Waldron | — | Burbank | #345061 | 2022 |
| Jesse Wales | The Bondy Law Group | Encino | #227371 | 2003 |
| Evan M. Walike | Singerman Law | Burbank | #349471 | 2023 |
| Aston P. Wallace | Wenderoff Law Group, APC | Woodland Hills | #255509 | 2008 |
| Giselle K. Wallace | Desai Law, APC | Los Angeles | #322896 | 2018 |
| Joseph Wallace | Modern HR, Inc. | Burbank | #364796 | 2025 |
| Cheryl L. WallachState Bar certified specialist | Ford and Wallach | Los Angeles | #156138 | 1991 |
| Nicholas E. Walton | The Atlas Firm | Los Angeles | #267304 | 2009 |
| Teresa L. Walton | Moore & Associates | Whittier | #223449 | 2002 |
| Greg T. Wang | Department of Industrial Relations | Los Angeles | #236756 | 2005 |
| Ray Wang | — | Pomona | #227670 | 2003 |
| Danielle E. WankState Bar certified specialist | WS Law, APC | Northridge | #221832 | 2002 |
| Thomas E. Wanner | — | Redondo Beach | #195300 | 1998 |
| Erin Ann Ward-Dugan | Dietz, Gilmor and Chazen | Long Beach | #228078 | 2003 |
| Brooke L. Warman | Albert & Mackenzie | Agoura Hills | #266065 | 2009 |
| Danielle R. Warner | FIGS, INC. | Santa Monica | #285514 | 2012 |
| Sahel S. Wasseluk | Colantoni, Collins, Marren et al | Los Angeles | #276176 | 2011 |
| Benjamin Peter Wasserman | Law Office of Benjamin P Wasserman | Long Beach | #37061 | 1965 |
| Hal G. WatchmanState Bar certified specialist | Peatman Law Group | Glendale | #123762 | 1986 |
| Steven Harold WaxState Bar certified specialist | Pearlman, Brown & Wax L.L.P. | Encino | #69517 | 1976 |
| Joseph A. Wazir | Llarena Murdock Lopez & Azizad, APC | Pasadena | #334127 | 2021 |
| Clifford Jay Weinberg | Ingber & Weinberg LLP | Calabasas | #94501 | 1980 |
| Kathryn E. Weingarten | Nordanyan Law | Van Nuys | #278757 | 2011 |
| Shelley Anne Weinstein | Law Offices of Shelley A. Weinstein | Encino | #93048 | 1980 |
| Jeffrey E. Weiss | Lewis, Brisbois, Bisgaard & Smith, LLP | Los Angeles | #143700 | 1989 |
| Barry J. Weitz | Law Offices of Natalie Kaplan | Woodland Hills | #283679 | 2012 |
| Hugh N. Wells IVState Bar certified specialist | Hallett, Emerick, Wells & Sareen PLC | Calabasas | #126497 | 1986 |
| Lori Ann WenderoffState Bar certified specialist | The Wenderoff Law Group, APC | Woodland Hills | #116363 | 1984 |
| Elisabeth Susanne Wendorff | Hora Law Firm | Long Beach | #167295 | 1993 |
| Theodore V. Wenzel | Lower & Kesner, LLP | Glendale | #225015 | 2003 |
| Bryn G. Werner | Albert & Mackenzie | Agoura Hills | #323094 | 2018 |
| Jonah A. Wetzel | Law Offices of Melanie Clayman | Woodland Hills | #261522 | 2008 |
| Todd E. Whates | Whates Law, PLC | Tarzana | #216022 | 2001 |
| Cason W. White | Tobin Lucks LLP | West Hills | #331256 | 2020 |
| Kevin M. White | Woolverton, Woolverton & Wolsey | Los Angeles | #206704 | 2000 |
| William A. White | Wilshire Law Firm | Los Angeles | #346251 | 2022 |
| Kendall M. Whitehead | Aziz & Associates | Diamond Bar | #299355 | 2014 |
| Jayne Lynn Whittaker | Jayne L. Whittaker | Torrance | #91771 | 1980 |
| Michael S. Wichman | Law Offices of Joan Sheppard | Woodland Hills | #206174 | 2000 |
| Richard Mark Widom | Widom Savey, A Law Corporation | Los Angeles | #75202 | 1977 |
| Ian N. Willens | State Compensation Insurance Fund | Glendale | #274245 | 2010 |
| Briana D. Williams | Greystone Law and Advisory Group, P.C. | Los Angeles | #324934 | 2019 |
| Erica S. WillisState Bar certified specialist | Law Offices of Scott Warmuth | San Gabriel | #237148 | 2005 |
| Paula S. Wilson | Workers' Compensation Appeals Board | Marina del Rey | #272432 | 2010 |
| Stuart M. WilsonState Bar certified specialist | WCD Law Group | La Canada | #283640 | 2012 |
| Chris Win | — | Burbank | #364868 | 2025 |
| Michael Joe WinState Bar certified specialist | Rowen, Gurvey & Win | Van Nuys | #228585 | 2003 |
| Sarah E. Winkle | EM Legal | Calabasas | #222317 | 2002 |
| Glen A. Winter | Newhouse & Creager | Calabasas | #322755 | 2018 |
| Vince Winters | Vince Winters Esq | Canoga Park | #136944 | 1988 |
| Benjamin S. Wishart | Aziz & Associates | Diamond Bar | #276057 | 2011 |
| Crystal Viruet Witherell | Albert & Mackenzie | Agoura Hills | #327209 | 2019 |
| Bradford D. Wixen | Law Offices of Brad Wixen | Los Angeles | #156439 | 1991 |
| Erik J. Wochna | Albert and Mackenzie, P.C. | Agoura Hills | #277598 | 2011 |
| Bradley E. Wohlenberg | — | Valencia | #172408 | 1994 |
| Rhonda J. Wolf | State Compensation Insurance Fund | Glendale | #190408 | 1997 |
| Marla Joy Wolfe | LAW OFFICES OF MARLA J. WOLFE, APC | Encino | #110108 | 1983 |
| Deidre M. WollmanState Bar certified specialist | Wai Connor & Hamidzadeh | LOS ANGELES | #185275 | 1996 |
| Paul S. Wolsey | Stockwell Harris Woolverton & Fox | Los Angeles | #229303 | 2003 |
| Darren W. Wong | Chernow, Pine & Williams | Van Nuys | #236620 | 2005 |
| Jennifer L. Wong | Harrison, Eichenberg & Murphy | Agoura Hills | #342512 | 2021 |
| Pansy N. Wong | State Comp Ins Fund | Glendale | #218994 | 2002 |
| Rosanne Wong | — | Los Angeles | #118409 | 1985 |
| Phillip L. Woo | David Jane & Associates | Los Angeles | #329626 | 2019 |
| Sherri Lynette Woods | State Compensation Insurance Fund | Glendale | #122453 | 1986 |
| Richard D. Wooley | Law Office of RDWooley | Pomona | #93067 | 1980 |
| Randy C. Woolford | Woolford & Associates | Glendale | #231324 | 2004 |
| George Woolverton | Stockwell Harris et al | Los Angeles | #68075 | 1975 |
| Matthew B. Woolverton | WWW | Los Angeles | #255733 | 2008 |
| Michael Forbes Worthington | Michael Worthington, APC | Encino | #75234 | 1977 |
| Danielle S. Worthy | Rose, Klein & Marias | Los Angeles | #292630 | 2013 |
| Matthew J. Wright | Woolverton Woolverton & Wolsey | Los Angeles | #254532 | 2007 |
| Timothy Daniel Wright | Law Offices of Tim D Wright | Burbank | #108871 | 1983 |
| Michelle Y. Wu | Purinton, Jimenez, Labo & Wu, LLP | Los Angeles | #210759 | 2000 |
| Jerilyn Grace Wynn | — | Encino | #83038 | 1978 |
| Jeri R. Wyrick | Jeri Wyrick, Attorney at Law | Long Beach | #191251 | 1997 |
| Jacob Yadegar | DTLA Law Group | Los Angeles | #363606 | 2025 |
| Joshua Yadegar | Los Angeles Law Firm | Van Nuys | #356534 | 2024 |
| Michael M. Yadegari | LA LAWYER | Los Angeles | #286514 | 2012 |
| Brett R. Yaden | Law Offices of Brett Yaden, APC | West Hollywood | #249011 | 2007 |
| Kenneth M. Yadidi | Lyfe Law | Los Angeles | #368010 | 2026 |
| Roshanack A. Yaghobi | Glauber Berenson Vego | Glendale | #256504 | 2008 |
| Shayna A. Yamada | Albert & Mackenzie | Agoura Hills | #216203 | 2001 |
| James S. Yang | Law Offices of James Yang | Cerritos | #276149 | 2011 |
| Jeffrey S. Yang | Rexford Industrial Realty | Los Angeles | #217791 | 2001 |
| Michael N. Yap | Law Office of Michael Yap | Diamond Bar | #316618 | 2017 |
| Michael T. Yasenchok | Morgan & Leahy | Agoura Hills | #224365 | 2003 |
| Eman YazdchiState Bar certified specialist | Yazdchi Law, P.C. | Palmdale | #285231 | 2012 |
| Romeo Y. Ybanez | State Compensation Insurance Fund | Glendale | #233667 | 2004 |
| Armen YedalyanState Bar certified specialist | Law Offices of Armen Yedalyan, APLC | Sherman Oaks | #282492 | 2012 |
| Tommy S. Yee | Drasin, Yee & Santiago | Los Angeles | #143245 | 1989 |
| Shiva Yegan | Office of the County Counsel Los Angeles | Los Angeles | #304269 | 2015 |
| Jason M. Yeh | JMY LAW, APC | Pasadena | #231388 | 2004 |
| Christopher J. Yemenidjian | Laughlin, Falbo, Levy & Moresi LLP | Glendale | #340101 | 2021 |
| Hsu Yen | DWC Pomona | Pomona | #289405 | 2013 |
| Moses Mark Yenikomshian | Law Offices of M. Mark Yenikomshian | Los Angeles | #227555 | 2003 |
| Shahram Yermian | Law Offices of Shahram Yermian | Santa Monica | #229801 | 2004 |
| Suzy Y. Yezadzhyan | Law Office of Natalie Kaplan | Woodland Hills | #293054 | 2013 |
| Demosthenes C. Yiakas | Visionary Law Group, LLP | Long Beach | #275258 | 2011 |
| Bryant W. Yip | Los Angeles City Attorney's Office | Los Angeles | #299901 | 2014 |
| Susette S. Yi-Ries | Amaro Baldwin LLP | Long Beach | #183101 | 1996 |
| Nyasha S. Yong-Wright | Abramson Labor Group | Burbank | #356504 | 2024 |
| William H. Yoo | Littler Mendelson | Los Angeles | #289907 | 2013 |
| Sung H. You | RO & YOU LLP | Sherman Oaks | #281958 | 2012 |
| John David Young | — | La Crescenta | #117522 | 1985 |
| Paul W. Young | Blitstein Young Blinder | Woodland Hills | #181593 | 1995 |
| Yalda YousefiState Bar certified specialist | Yousefi Law Group, APC | Tarzana | #227515 | 2003 |
| Tara R. Yousif | Korey Law | Los Angeles | #340424 | 2021 |
| Daniel J. YsabalState Bar certified specialist | Daniel Ysabal | Pasadena | #123877 | 1986 |
| Daniel B. Ysabel | Law Offices of Daniel B. Ysabel | Valley Village | #286418 | 2012 |
| Jon Neil YudinState Bar certified specialist | Rosenberg Yudin LLP | Van Nuys | #80868 | 1978 |
| Armen Zadourian | Law Offices of Armen Zadourian | La Crescenta | #282355 | 2012 |
| Nichole A. Zahler | Bradford & Barthel, LLP | Woodland Hills | #344478 | 2022 |
| Gina M. Zapanta | Z.A. Lawyers | Valley Village | #262845 | 2009 |
| Ignacio Zaragoza | The Zaragoza Firm, P.C. | Los Angeles | #250213 | 2007 |
| Payman ZargariState Bar certified specialist | Law Offices of Payman Zargari | Van Nuys | #208451 | 2000 |
| Zareh ZatikyanState Bar certified specialist | Zatikyan Law Firm PC | Glendale | #278582 | 2011 |
| Nerice M. Zavala | — | Los Angeles | #207582 | 2000 |
| Paul E. ZayatState Bar certified specialist | Michael Sullivan & Associates | El Segundo | #263395 | 2009 |
| Jessie Leigh ZayliaState Bar certified specialist | CA Workers' Compensation Attorney | Los Angeles | #279665 | 2011 |
| Laura E. Zazueta Garcia | The Oaks Law Group | Long Beach | #356870 | 2024 |
| Alissa Ann Zea | Goldman,Magdalin & Straatsma, LLP | Woodland Hills | #166743 | 1993 |
| Brian A. Zeiden | The Wenderoff Law Group, APC | Woodland Hills | #219511 | 2002 |
| Tal Zemer | Turnaround Solutions LP / Tasoro, Inc. | Gardena | #219730 | 2002 |
| Raul E. Zermeno | Traffic Management, LLC | Long Beach | #260731 | 2008 |
| Frank Zgrablich | Zgrablich & Montgomery | Woodland Hills | #220390 | 2002 |
| Xiyan Zhang | Point 101 Law PC | Alhambra | #348189 | 2022 |
| Xuewen Zhang | Valenzuela & Ginzburg | Sherman Oaks | #357394 | 2024 |
| David G. Ziegert | Law Offices of Joan Sheppard | Woodland Hills | #269803 | 2010 |
| William M. Zimmerman | Pisegna & Zimmerman | Sherman Oaks | #126531 | 1986 |
| Jim L. Zoellner | DIR / DWC | Long Beach | #165067 | 1993 |
| Sevan Zulikyan | Llarena, Murdock, Lopez & Azizad, APC | Pasadena | #236922 | 2005 |
| Daniel K. Zwirn | Zwirn, Gevorkyan & Sogoyan LLP | Burbank | #123325 | 1986 |
Workers' Compensation in Los Angeles County by surname
Abassian – Bernstein206 attorneysBernthol – Coker203 attorneysCole – Fellman204 attorneysFelstiner – Hamuicka204 attorneysHannes – Khodakarami204 attorneysKhooda – Madans205 attorneysMader – Nalbandyan204 attorneysNamkung – Ramezanzadeh204 attorneysRamirez – Shabestari204 attorneysShagramanov – Tran205 attorneysTreadwell – Zwirn203 attorneys
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