Timothy L. v. Frank Bisignano, Commissioner of Social Security Administration

District Court, C.D. California·Decided March 27, 2026·No. 8:24-cv-01893·Unknown

Opinion

TIMOTHY L. ) Case No. 8:24-cv-01893-SP ) Plaintiff, ) ) v. ) MEMORANDUM OPINION AND ) ORDER Commissioner of Social Security ) Administration, ) ) Defendant. ) ) ) I. On August 30, 2024, plaintiff Timothy L. filed a complaint against defendant, the Commissioner of the Social Security Administration (“Commissioner”), seeking a review of a denial of an application for supplemental security income (“SSI”). The parties have fully briefed the matter in dispute, and the court deems the matter suitable for adjudication without oral argument. Plaintiff presents two disputed issues for decision: (1) whether the Administrative Law Judge’s (“ALJ”) residual functional capacity (“RFC”) determination was supported by substantial evidence; and (2) whether the ALJ erred at step five. Plaintiff’s Brief (“P. Mem.”) at 4-10; see Defendant’s Brief (“D. Mem.”) at 2-8. Having carefully studied the parties’ memoranda, the Administrative Record (“AR”), and the decision of the ALJ, the court concludes that, as detailed herein, the ALJ did not err at step five, but the ALJ’s RFC determination was not supported by substantial evidence. The court therefore reverses the decision of the Commissioner denying benefits and remands the matter for further administrative action consistent with this decision. II. Plaintiff was 30 years old on his alleged December 10, 2019 onset date. AR at 65. Plaintiff has an 11th-grade education and has no past relevant work. AR at 86, 214. On March 10, 2021, plaintiff filed an application for SSI due to the amputation of his right leg below the knee, congestive heart failure, high blood pressure, fluid in his chest, and an infection in his amputated limb. AR at 65. The application was denied initially and upon reconsideration, after which plaintiff filed a request for a hearing. AR at 65-69, 71-88, 109. On February 12, 2024, plaintiff, represented by counsel, appeared and testified at a hearing before the ALJ. AR at 37-64. The ALJ also heard testimony from Michael Frank, a vocational expert (“VE”). AR at 50-63. On April 29, 2024, the ALJ denied plaintiff’s claim for benefits. AR at 24-32. Applying the well-known five-step sequential evaluation process, the ALJ found, at step one, that plaintiff had not engaged in substantial gainful activity since March 10, 2021, the application date. AR at 26. At step two, the ALJ found plaintiff suffered from the following severe impairments: congestive heart failure, right leg below knee amputation, and obesity. Id. At step three, the ALJ found plaintiff’s impairments, whether individually or in combination, did not meet or medically equal one of the impairments set forth in 20 C.F.R. part 404, Subpart P, Appendix 1. AR at 27. The ALJ then assessed plaintiff’s residual functional capacity, and determined plaintiff had the RFC to perform sedentary work but was limited to: never climbing ladders, ropes, or scaffolds; occasionally performing all other postural movements; avoiding extreme temperatures and pulmonary irritants; mandatory use of a cain for any ambulation; and no foot pedals or controls operated by the lower right extremity. AR at 28. The ALJ found, at step four, that plaintiff has no past relevant work. AR at 30. At step five, the ALJ found there were jobs that existed in significant numbers in the national economy plaintiff could perform, including document preparer, call out operator, and addressor. AR at 30-31. Consequently, the ALJ conclude that plaintiff did not suffer from a disability as defined by the Social Security Act. AR at 31. Plaintiff filed a timely request for review of the ALJ’s decision, which the Appeals Council denied. AR at 8-10. The ALJ’s decision stands as the final decision of the Commissioner. This court is empowered to review decisions by the Commissioner to deny benefits. 42 U.S.C. § 405(g). The findings and decision of the Social Security Administration must be upheld if they are free of legal error and supported by substantial evidence. Mayes v. Massanari, 276 F.3d 453, 458-59 (9th Cir. 2001) (as amended). But if the court determines the ALJ’s findings are based on legal error or are not supported by substantial evidence in the record, the court may reject the findings and set aside the decision to deny benefits. Aukland v. Massanari, 257 F.3d 1033, 1035 (9th Cir. 2001); Tonapetyan v. Halter, 242 F.3d 1144, 1147 (9th Cir. 2001). “Substantial evidence is more than a mere scintilla, but less than a preponderance.” Aukland, 257 F.3d at 1035. Substantial evidence is such “relevant evidence which a reasonable person might accept as adequate to support a conclusion.” Reddick v. Chater, 157 F.3d 715, 720 (9th Cir. 1998); Mayes, 276 F.3d at 459. To determine whether substantial evidence supports the ALJ’s finding, the reviewing court must review the administrative record as a whole, “weighing both the evidence that supports and the evidence that detracts from the ALJ’s conclusion.” Mayes, 276 F.3d at 459. The ALJ’s decision “‘cannot be affirmed simply by isolating a specific quantum of supporting evidence.’” Aukland, 257 F.3d at 1035 (quoting Sousa v. Callahan, 143 F.3d 1240, 1243 (9th Cir. 1998)). If the evidence can reasonably support either affirming or reversing the ALJ’s decision, the reviewing court “‘may not substitute its judgment for that of the ALJ.’” Id. (quoting Matney on Behalf of Matney v. Sullivan, 981 F.2d 1016, 1018 (9th Cir. 1992)). IV. A. The ALJ’s RFC Determination Was Not Supported by Substantial Evidence Plaintiff claims the ALJ’s RFC determination was not supported by substantial evidence. P. Mem. at 5-10. He argues the ALJ improperly rejected all of the medical opinions in the record, and instead relied on his own lay interpretation of the medical evidence to formulate plaintiff’s RFC.1 Id. at 9. Defendant contends the ALJ evaluated the medical evidence in the record and properly formulated an RFC supported by substantial evidence. D. Mem. at 3-8. Residual functional capacity is what one can “still do despite [his or her] limitations.” 20 C.F.R. § 416.945(a)(1). The ALJ reaches an RFC determination by reviewing and considering all of the relevant evidence, including non-severe impairments. 20 C.F.R. § 416.945(a)(1)-(2); see Social Security Ruling (“SSR”) 96-8p (“In assessing RFC, the adjudicator must consider limitations and restrictions imposed by all of an individual’s impairments, even those that are not ‘severe.’”). 1 Although plaintiff primarily argues that the ALJ formulated plaintiff’s RFC based on his lay interpretation of the medical data, plaintiff also briefly argues the ALJ erred in his rejection of the medical opinions in the record. See P. Mem. at 10. While plaintiff’s argument could have been more detailed, it is sufficiently clear for the court to examine. 1. The ALJ Did Not Err in Rejecting the Medical Opinions in the Record The evidence an ALJ relies on in an RFC assessment includes medical evidence and opinions. 20 C.F.R. §

Timothy L. v. Frank Bisignano, Commissioner of Social Security Administration, (C.D. Cal. 2026).

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