What the panel ordered
Defendant's Petition for Reconsideration is granted; final decision after reconsideration is deferred pending further review of the merits and entire record.
Defendant sought reconsideration of the July 8, 2025 Findings and Order by the WCJ, which found no apportionment based on Dr. Gwartz's opinion and awarded applicant 30% whole person impairment permanent disability indemnity. The WCAB granted reconsideration and deferred final decision pending further review.
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 WCJ found Dr. Gwartz's opinion self-contradictory and insufficient as substantial medical evidence to support apportionment. The WCAB granted reconsideration to further review the record and merits, deferring final decision.
From the decision · page 3The only disputed issues deal with the impairment caused by the ulcerative colitis, and the apportionment of industrial versus non-industrial disability, Both issues were arguably addressed by QME Dr. Gwartz in his report admitted into evidence. It was the conclusion of Dr. Gwartz that the impairment should be apportioned 30% to industrial factors and 70% to non-industrial factors.
The facts that decided it
What the panel treated as outcome-determinative, and which side it favoured.
Dr. Gwartz's opinion was self-contradictory and lacked necessary explanation to be considered substantial medical evidence.
Favours Defendant prevailed
This led the WCJ to reject the opinion and deny apportionment, which was the basis for the defendant's petition for reconsideration.
From the decision · page 3The trial judge found the opinion of Dr. Gwartz did not support any finding of apportionment "as the opinion expressed... is self-contradictory and does not provide the necessary opinion, nor explanation, to allow it to be considered substantial medical evidence." (Findings and Order, op. on Decision, 7/5/2025, 8:30 a.m. session, at p. 2.) The judge further explained why the opinion of Dr. Gwartz failed as substantial evidence.
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. Gwartz concluded impairment should be apportioned 30% to industrial factors and 70% to non-industrial factors, but the WCJ found the opinion self-contradictory and insufficient as substantial medical evidence.
The WCJ found the opinion self-contradictory and lacking necessary explanation to be substantial medical evidence.
From the decision · page 3The only disputed issues deal with the impairment caused by the ulcerative colitis, and the apportionment of industrial versus non-industrial disability, Both issues were arguably addressed by QME Dr. Gwartz in his report admitted into evidence. It was the conclusion of Dr. Gwartz that the impairment should be apportioned 30% to industrial factors and 70% to non-industrial factors.
The rules the panel named
Authorities as the decision cited them, with how this panel applied each one.
Braewood Convalescent Hosp. v. Workers' Comp. Appeals Bd. (Bolton) (1983) 34 Cal.3d 159, 164; Escobedo v. Marshalls (2005) 70 Cal.Comp.Cases 604, 621 (Appeals Board en banc)
Decisions by the Appeals Board must be supported by substantial evidence, which means evidence that is reasonable, credible, and of solid value, framed in terms of reasonable medical probability, not speculative, based on pertinent facts and adequate examination, and with reasoning supporting conclusions.
The WCJ found Dr. Gwartz's opinion did not meet the substantial evidence standard due to being self-contradictory and lacking explanation.
From the decision · page 4III. We highlight the following legal principles that may be relevant to our review of this matter: It is well established that decisions by the Appeals Board must be supported by substantial evidence. (Lab. Code, § 5903, 5952(d); Lamb v. Workmen's Comp. Appeals Bd. (1974) 11 Cal.3d 274 [39 Cal. Comp. Cases 310]; Garza, supra; LeVesque v. Workmen's Comp. Appeals Bd. (1970) 1 Cal.3d 627 [35 Cal. Comp. Cases 16].) "The term `substantial evidence' means evidence which, if true, has probative force on the issues. It is more than a mere scintilla, and means such relevant evidence as a reasonable mind might accept as adequate to support a conclusion... It must be reasonable in nature, credible, and of solid value." (Braewood Convalescent Hosp. v. Workers' Comp. Appeals Bd. (Bolton) (1983) 34 Cal.3d 159, 164 [48 Cal.Comp.Cases 566], emphasis removed and citations omitted.) 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.
Lab. Code, 5705; Pullman Kellogg v. Workers Comp. Appeals Bd. (Normand) (1980) 26 Cal.3d 450, 456; Kopping v. Workers' Comp. Appeals Bd. (Kopping) (2006) 142 Cal.App.4th 1099, 1115; Escobedo v. Marshalls (2005) 70 Cal.Comp.Cases 604, 613; Gay v. Workers' Comp. Appeals Bd. (Gay) (1979) 96 Cal.App.3d 555, 564
The defendant has the burden of proof on apportionment and must demonstrate a legal basis for apportionment based on reasonable medical probability.
The WCJ found the defendant did not meet the burden of proof for apportionment due to insufficient substantial medical evidence.
From the decision · page 4Marshalls (2005) 70 Cal.Comp.Cases 604, 621 (Appeals Board en banc).) The defendant has the burden of proof on apportionment. (Lab. Code, § 5705; Pullman Kellogg v. Workers Comp. Appeals Bd. (Normand) (1980) 26 Cal.3d 450, 456 [45 Cal.Comp.Cases 170]; Kopping v. Workers' Comp. Appeals Bd. (Kopping) (2006) 142 Cal.App.4th 1099, 1115 [71 Cal.Comp.Cases 1229]; Escobedo v. Marshalls (Escobedo) (2005) 70 Cal.Comp.Cases 604, 613 (Appeals Board en banc).) To meet this burden, the defendant "must demonstrate that, based upon reasonable medical probability, there is a legal basis for apportionment." (Gay v. Workers' Comp. Appeals Bd. (Gay) (1979) 96 Cal.App.3d 555, 564 [44 Cal.Comp.Cases 817]; see also Escobedo, supra, at p. 620.) Here, it is unclear from our preliminary review that there is substantial medical evidence to support the WCJ's decision without additional development of the record.
What proof carried it
The evidence the panel weighed, by kind.
The opinion of Dr. Gwartz was found self-contradictory and insufficient to support apportionment.
From the decision · page 3The trial judge found the opinion of Dr. Gwartz did not support any finding of apportionment "as the opinion expressed... is self-contradictory and does not provide the necessary opinion, nor explanation, to allow it to be considered substantial medical evidence." (Findings and Order, op. on Decision, 7/5/2025, 8:30 a.m. session, at p. 2.) The judge further explained why the opinion of Dr. Gwartz failed as substantial evidence.
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.