What the panel ordered
Petition for Reconsideration granted; Amended Findings and Orders of November 18, 2025 rescinded; Petition for Disqualification granted; WCJ Peter M. Christiano disqualified; matter returned for reassignment to a different WCJ.
Petition for Reconsideration and Petition for Disqualification filed by lien representative Patrick Petronella against WCJ Peter M. Christiano's Amended Findings and Orders of November 18, 2025, leading to Appeals Board review and correction.
This docket was decided more than once. Shown here is the latest released decision; we also hold September 12, 2023.
What was disputed, and how it came out
Each issue the panel decided, with the reasoning it gave. An outcome is what this panel did on this record — not a rule, and not a prediction.
The Appeals Board found insufficient evidence to support the WCJ's imposition of sanctions against lien representative Patrick Petronella and concluded that the WCJ's actions raised doubts about fairness and due process, warranting disqualification and reassignment.
From the decision · page 18Accordingly, for the reasons discussed above, we do not believe that the evidence supports the imposition of sanctions against Petronella, and we grant the Petition for Reconsideration and rescind the F&O and grant the Petition for Disqualification and order that the matter be returned to the Presiding WCJ for assignment to a new WCJ.
The facts that decided it
What the panel treated as outcome-determinative, and which side it favoured.
Most exhibits cited by the WCJ to show a pattern of sanctionable conduct did not mention Petronella by name, undermining the finding of a pattern.
Favours Applicant prevailed
This lack of specific evidence led the Appeals Board to conclude there was insufficient evidence to support sanctions.
The WCJ's unilateral investigation and actions raised doubts about fairness and due process, supporting disqualification.
Favours Applicant prevailed
The Appeals Board found that the WCJ's conduct deprived Petronella of due process and created an appearance of bias.
From the decision · page 17We conclude that the actions of WCJ Christiano toward Petronella could reasonably raise doubts as to whether WCJ Christiano has formed an opinion regarding the merits of these matters based on his choice to go beyond the record and conduct a separate investigation, as well as raise doubts regarding the appearance of unfairness or bias in a reasonable person with knowledge of the facts of this case. Given that the unilateral actions of the WCJ as described herein actually resulted in a deprivation of Petronella's right to due process, we conclude that the parties would be better served by a reassignment to another WCJ. Finally, based upon the lengthy and contentious history involving this lien representative and the WCJ, pursuant to our authority under section 5310, we also conclude that it would best serve the parties to return this matter to the Presiding Judge for reassignment to another WCJ. (Lab. Code, § 5310.)
The rules the panel named
Authorities as the decision cited them, with how this panel applied each one.
Labor Code 5813
Section 5813 authorizes sanctions for bad-faith actions or tactics that are frivolous or solely intended to cause unnecessary delay.
The WCJ imposed sanctions under this section, but the Appeals Board found insufficient evidence to uphold them.
From the decision · page 13Section 5813 authorizes the WCJ to order a party or attorney to pay reasonable expenses incurred by another party as a result of "bad-faith actions or tactics that are frivolous or solely intended to cause unnecessary delay." (Lab. Code, § 5813.)
CCR 10421(b)(1)
CCR 10421(b)(1) requires notice and opportunity to be heard before sanctions are imposed.
The WCJ complied with notice requirements, but the Appeals Board found the sanctions unsupported by evidence.
From the decision · page 14(Cal. Code Regs., tit. 8, § 10421(b)(1).) WCAB Rule 10872 provides: (a) Within seven days after a lien has been resolved or withdrawn, the lien claimant shall file and serve a notification of resolution or withdrawal of lien claim. For purposes of this rule, a lien is not resolved unless payment in accordance with an order or an informal agreement has been made and received.
What proof carried it
The evidence the panel weighed, by kind.
The WCJ's finding of a pattern of sanctionable conduct by Petronella was not supported by substantial evidence, as most exhibits did not mention Petronella by name.
Petronella's testimony and evidence that he signed in timely and participated in the hearing was considered but ultimately rejected by the WCJ.
From the decision · page 15As to the April 17, 2023 hearing, Petronella contended that he signed in several minutes before the initial hearing, scheduled for 8:30 a.m., and stated his appearance, but that, for some reason, the WCJ did not hear him. Petronella contended that his single exhibit, a cellular call log showing that a phone call was made at 8:29 a.m., on April 17, 2023 to an unidentified telephone number proves that this was the case. (Lien Claimant's) The WCJ considered this evidence, weighed it, and ultimately rejected it. The WCJ stated that simply dialing into a hearing is not a sufficient "appearance," and constitutes behavior sanctionable under WCAB Rule 10421(b). Specifically, the WCJ explained:
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About this page
- A published decision of the California Workers' Compensation Appeals Board, taken apart by what it turned on. The Board publishes the decision itself; this page adds the extraction and quotes the passage behind every claim.
- The injured worker is not named here, and the case caption is not printed. Physicians appear as the decision names them, because a medical opinion is an act in a public proceeding.
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