Jason Z. v. Frank J. Bisignano, Commissioner of Social Security

District Court, C.D. California·Decided May 21, 2026·No. 2:25-cv-06084·Unknown

Opinion

UNITED STATES DISTRICT COURT CENTRAL DISTRICT OF CALIFORNIA WESTERN DIVISION

JASON Z.,1 Case No. 2:25-cv-06084-DFM

Plaintiff, MEMORANDUM OPINION AND ORDER v.

FRANK J. BISIGNANO, Commissioner of Social Security,

Defendant.

Plaintiff Jason Levent Zapata appeals the decision of the administrative law judge (“ALJ”) denying his claim for Supplemental Security Income benefits. For the reasons set forth below, the Court concludes that the ALJ’s residual functional capacity finding is not supported by substantial evidence and that the record must be further developed. Accordingly, the Court reverses the ALJ’s decision and remands this matter for further administrative proceedings.

1 The Court partially redacts Plaintiff’s name in compliance with Federal Rule of Civil Procedure 5.2(c)(2)(B) and the recommendation of the Committee on Court Administration and Case Management of the Judicial Conference of the United States. I. BACKGROUND Plaintiff filed an application for Supplemental Security Income on July 26, 2022, alleging disability beginning on January 1, 1999. See Dkt. 11, Administrative Record (“AR”) 273.2 He subsequently amended his disability onset date to June 16, 2022. See AR 32. His claim was denied at the initial level and on reconsideration. See AR 138-48. He requested a hearing before an ALJ, see AR 158, and the hearing was held on April 9, 2024, see AR 92-113. Plaintiff, represented by counsel, testified, as did a vocational expert. See id. Following the hearing, the ALJ denied Plaintiff’s claim on May 28, 2024. See AR 32-54. The ALJ followed the five-step sequential evaluation process for determining whether an individual is disabled. See 20 C.F.R. § 416.920(a). At step one, the ALJ found that Plaintiff had not engaged in substantial gainful activity since his alleged disability onset date. See AR 33. At step two, the ALJ found that Plaintiff had the following severe impairments: “learning disorder; mood disorders; anxiety disorder; psychotic disorder; borderline intellectual functioning; attention deficit hyperactivity disorder; post-traumatic stress disorder; right shoulder labral and tendon tears with bursitis; and obesity.” AR 34. At step three, the ALJ found that Plaintiff did not have an impairment or combination of impairments that met or medically equaled the severity of one of the listed impairments in 20 C.F.R. Part 404, Subpart P, Appendix 1. See AR 37. At step four, the ALJ determined that Plaintiff had the residual functional capacity (“RFC”) to perform medium work as defined by 20 C.F.R. § 416.967(c) with the following exertional and non-exertional limitations:

2 Citations to the AR are to the record pagination. All other docket citations are to the CM/ECF pagination. [He] can frequently push and pull with the right upper extremity; can frequently climb ladders, ropes or scaffolds; should have no exposure to hazards, as defined in the DOT and SCO; can understand, remember and carry out simple instructions; can have occasional interactions with supervisors and co-workers but should have no interactions with the public; and can deal with occasional changes in a routine work setting.

AR 40.3 The ALJ found that Plaintiff had no past relevant work. See AR 52. The ALJ relied, however, on the vocational expert’s testimony to conclude that—given Plaintiff’s age, education, and RFC—he could perform other jobs that existed in significant numbers in the national economy. See AR 52-54. Thus, the ALJ found that Plaintiff was not disabled. See AR 54. The Appeals Council denied review of the ALJ’s decision. See AR 1-6. Plaintiff then sought judicial review in the instant action. See Dkt. 1. II. LEGAL STANDARD A district court will set aside a denial of benefits only if “it is either not supported by substantial evidence or is based on legal error.” Luther v. Berryhill, 891 F.3d 872, 875 (9th Cir. 2018) (citation omitted). Under the substantial-evidence standard, the district court looks to the existing administrative record and determines “whether it contains sufficient evidence to support the agency’s factual determinations.” Biestek v. Berryhill, 139 S. Ct. 1148, 1154 (2019) (citation omitted) (cleaned up). “Substantial” means “more than a mere scintilla” but only “such relevant evidence as a reasonable mind might accept as adequate to support a conclusion.” Id. (citation omitted). This threshold “is not high” and “defers to the presiding ALJ, who has seen the hearing up close.” Id. at 1154, 1157. “Where evidence is susceptible to more

3 Section 416.967(c) defines “medium” work as “work involv[ing] lifting no more than 50 pounds at a time with frequent lifting or carrying of objects weighing up to 25 pounds.” than one rational interpretation, it is the ALJ’s conclusion that must be upheld.” Burch v. Barnhart, 400 F.3d 676, 679 (9th Cir. 2005). III. DISCUSSION The parties dispute: (1) whether substantial evidence supports the ALJ’s RFC finding; and (2) whether the ALJ erred in rejecting Plaintiff’s subjective complaints regarding the severity of his mental health-related symptoms. See Dkt. 12 at 4-14. A. Plaintiff’s RFC Plaintiff contends that the ALJ erred in assessing his RFC. See Dkt. 12 at 4-9. Specifically, Plaintiff argues that the ALJ improperly failed to include any limitations relating to fine or gross manipulation in the RFC determination, despite medical evidence in the record supporting such restrictions for his right hand. See id. Plaintiff further contends that the ALJ improperly relied on the results of magnetic resonance imaging (“MRI”) to conclude that no manipulative limitations were warranted without first obtaining a medical professional’s interpretation of those results. See id. Plaintiff seeks a remand to allow the ALJ to re-evaluate his RFC. See id. at 9. 1. Relevant Background On February 24, 2023, over six months after he applied for benefits, Plaintiff underwent an MRI for his right shoulder, which he claimed had been in pain “for several months.” AR 929.4 The results reflected the following: (1) “labral tear anterosuperiorly with adjacent 1.5 cm paralabral cyst”; (2) “low- grade intrasubstance partial tear of upper subscapulais tendon”; and (3) “minimal subacromial-subdeltoid bursitis.” Id. Less than two months later, Plaintiff underwent a consultative physical

4 Plaintiff did not identify shoulder pain as one of his medical conditions in his initial application for supplemental security income. See Dkt. 11-7 at 3. examination by Dr. Dennis Shults. See AR 938-42. When the exam was conducted, the results of Plaintiff’s MRI were not yet available. See AR 938. Dr. Shults observed, among other things, that Plaintiff had “pain but full range of motion on the right [shoulder]” and that his “range of motion on the left [shoulder] [was] grossly within normal limits.” AR 940 Additionally, Dr. Shults observed that Plaintiff’s range of motion in his elbows and wrists, as well as his joint flexion in his hands, was “grossly within normal limits bilaterally.” Id. Dr. Shults found that Plaintiff was capable of medium work but could only frequently use his hands to “do fine and gross manipulation” and could only frequently push and pull. AR 941-42. On May 8, 2023, a state agency physician, Dr.

Free access — add to your briefcase to read the full text and ask questions with AI

Jason Z. v. Frank J. Bisignano, Commissioner of Social Security, (C.D. Cal. 2026).

Jason Z. v. Frank J. Bisignano, Commissioner of Social Security (Jason Z. v. Frank J. Bisignano, Commissioner of Social Security) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

Related

Bowen v. City of New York
476 U.S. 467 (Supreme Court, 1986)
Berry v. Astrue
622 F.3d 1228 (Ninth Circuit, 2010)
Molina v. Astrue
674 F.3d 1104 (Ninth Circuit, 2012)
Stubbs-Danielson v. Astrue
539 F.3d 1169 (Ninth Circuit, 2008)
Lingenfelter v. Astrue
504 F.3d 1028 (Ninth Circuit, 2007)
Padilla v. Astrue
541 F. Supp. 2d 1102 (C.D. California, 2008)
Miller v. Astrue
695 F. Supp. 2d 1042 (C.D. California, 2010)
Kim Brown-Hunter v. Carolyn W. Colvin
806 F.3d 487 (Ninth Circuit, 2015)
Carol Luther v. Nancy Berryhill
891 F.3d 872 (Ninth Circuit, 2018)