What the panel ordered
Petition for Reconsideration denied by the Appeals Board on June 1, 2026.
Applicant filed a Petition for Reconsideration on March 16, 2026, challenging the Findings and Orders issued by the WCJ on March 5, 2026, which found no good cause to disqualify the regularly appointed physician and no injury arising out of employment.
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.
Applicant failed to prove industrial causation by a preponderance of the evidence; the evidence was speculative and inconsistent.
From the decision · page 13vehicle's air-conditioning in December 2020 and January 2021. (See MOH/SOE (12-17-2025) supra at 5:11-14; 8:10-11; 8:25-9:3.) The timeline of events as relayed by the applicant is inconsistent. Based on the totality of the evidence before the Court, and without any evidence offered in support of applicant's suspicion, it is found that applicant did not sustain his burden of proving by a preponderance of the evidence that he sustained an injury arising out of and in the course of hi[s] employment with Northup Grumman. (Opinion on Decision, March 5, 2026, at pp. 1-10, EAMS Doc ID numbers omitted.) Accordingly, we deny the Petition for Reconsideration.
The court found no good cause to disqualify Dr. Betancourt, as his opinions were based on reasonable medical probability and substantial evidence.
From the decision · page 10Dr. Betancourt's reports contained thorough and detailed discussions of the issues presented. His opinions and conclusions were framed in terms of reasonable medical probability, were not speculative, and were based on pertinent facts and documents and on an adequate examination and history. Dr. Betancourt also thoroughly set forth his reasoning in support of his conclusions. Based thereon, Dr. Betancourt's opinions constitute substantial medical evidence upon which the Court can rely.
The facts that decided it
What the panel treated as outcome-determinative, and which side it favoured.
Dr. Betancourt's medical opinions were based on reasonable medical probability, thorough examination, and detailed record review.
Favours Defendant prevailed
These opinions constituted substantial evidence supporting denial of the motion to disqualify and denial of injury claim.
From the decision · page 10Dr. Betancourt's reports contained thorough and detailed discussions of the issues presented. His opinions and conclusions were framed in terms of reasonable medical probability, were not speculative, and were based on pertinent facts and documents and on an adequate examination and history. Dr. Betancourt also thoroughly set forth his reasoning in support of his conclusions. Based thereon, Dr. Betancourt's opinions constitute substantial medical evidence upon which the Court can rely.
Applicant's testimony about poisoning by foreign agents was speculative, inconsistent, and unsupported by evidence.
Favours Defendant prevailed
This undermined the applicant's burden to prove industrial causation by a preponderance of the evidence.
From the decision · page 13vehicle's air-conditioning in December 2020 and January 2021. (See MOH/SOE (12-17-2025) supra at 5:11-14; 8:10-11; 8:25-9:3.) The timeline of events as relayed by the applicant is inconsistent. Based on the totality of the evidence before the Court, and without any evidence offered in support of applicant's suspicion, it is found that applicant did not sustain his burden of proving by a preponderance of the evidence that he sustained an injury arising out of and in the course of hi[s] employment with Northup Grumman. (Opinion on Decision, March 5, 2026, at pp. 1-10, EAMS Doc ID numbers omitted.) Accordingly, we deny the Petition for Reconsideration.
What the panel did with the medical opinions
The role the physician served, and the weight the opinion carried. Physicians are named here as the decision names them; we do not score them.
Dr. Betancourt opined there was no evidence of occupational injury, no heavy metal intoxication, and no compensable claim for obstructive sleep apnea related to work exposure.
His opinions were based on reasonable medical probability, thorough examination, and detailed record review, constituting substantial evidence.
From the decision · page 10Dr. Betancourt's reports contained thorough and detailed discussions of the issues presented. His opinions and conclusions were framed in terms of reasonable medical probability, were not speculative, and were based on pertinent facts and documents and on an adequate examination and history. Dr. Betancourt also thoroughly set forth his reasoning in support of his conclusions. Based thereon, Dr. Betancourt's opinions constitute substantial medical evidence upon which the Court can rely.
The rules the panel named
Authorities as the decision cited them, with how this panel applied each one.
Labor Code section 5902; Cal. Code Regs., tit. 8, 10945, 10972
Petition for reconsideration must set forth grounds specifically and in full detail, verified by oath, and fairly state all material evidence with specific references to the record and law.
The petition filed failed to meet these requirements and was dismissed or denied accordingly.
From the decision · page 3II. Section 5902 requires that: The petition for reconsideration shall set forth specifically and in full detail the grounds upon which the petitioner considers the final order, decision or award made and filed by the appeals board or a workers' compensation judge to be unjust or unlawful, and every issue to be considered by the appeals board. The petition shall be verified upon oath in the manner required for verified pleadings in courts of record and shall contain a general statement of any evidence or other matters upon which the applicant relies in support thereof.
Labor Code section 5952(d); Escobedo v. Marshalls (2005) 70 Cal.Comp.Cases 604 (Appeals Board en banc)
Substantial evidence must support Appeals Board decisions; medical opinions must be framed in reasonable medical probability, not speculative, based on facts and adequate examination, with reasoning.
Dr. Betancourt's opinions met these criteria and constituted substantial evidence for the court's findings.
From the decision · page 8Any decision of the Appeals Board must be supported by substantial evidence. (Lab. Code, § 5952(d); Lamb v. Workmen's Comp. Appeals Bd. (1974) 11 Cal.3d 274, 281, 113 Cal. Rptr. 162, 520 P.2d 978; Garza v. Workmen's Comp. Appeals Bd. (1970) 3 Cal. 3d 312, 317, 90 Cal. Rptr. 355, 475 P.2d 451; LeVesque v. Workmen's Comp. Appeals Bd. (1970) 1 Cal.3d 627, 635, 83 Cal. Rptr. 208, 463 P.2d 432.) To constitute substantial evidence "... a medical opinion must be framed in terms of reasonable medical probability, it must not be speculative, it must be based on pertinent facts and on an adequate examination and history, and it must set forth reasoning in support of its conclusions." (Escobedo v. Marshalls (2005) 70 Cal.Comp.Cases 604, 621 (Appeals Board en banc).) "[A]Medical opinion... fails to support the Board's findings if it is based on surmise, speculation, conjecture or guess." (Hegglin v. Workmen's Comp. Appeals Bd. (1971) 4 Cal. 3d 162, 169 [93 Cal. Rptr. 15, 480 P.2d 967, 36 Cal.Comp.Cases 93, 97].)
What proof carried it
The evidence the panel weighed, by kind.
Applicant's testimony was speculative and inconsistent regarding poisoning by foreign agents and timeline of symptoms.
From the decision · page 13vehicle's air-conditioning in December 2020 and January 2021. (See MOH/SOE (12-17-2025) supra at 5:11-14; 8:10-11; 8:25-9:3.) The timeline of events as relayed by the applicant is inconsistent. Based on the totality of the evidence before the Court, and without any evidence offered in support of applicant's suspicion, it is found that applicant did not sustain his burden of proving by a preponderance of the evidence that he sustained an injury arising out of and in the course of hi[s] employment with Northup Grumman. (Opinion on Decision, March 5, 2026, at pp. 1-10, EAMS Doc ID numbers omitted.) Accordingly, we deny the Petition for Reconsideration.
The same issues, filtered across the whole corpus — or paste your own facts and let the search rank by factor match.
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.
- Issues, outcomes and weights were extracted by AI and released only where the source passage checked. Read the official decision before relying on anything here. Not legal advice.
- If you are named in this decision and want this page removed, write to privacy@similarcase.com.