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

CourtDistrict Court, C.D. California
DecidedMarch 27, 2026
Docket8:24-cv-01893
StatusUnknown

This text of Timothy L. v. Frank Bisignano, Commissioner of Social Security Administration (Timothy L. v. Frank Bisignano, Commissioner of Social Security Administration) is published on Counsel Stack Legal Research, covering District Court, C.D. California primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

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

Opinion

1 2 3 4 5 6 7 8 UNITED STATES DISTRICT COURT 9 CENTRAL DISTRICT OF CALIFORNIA

10 11 TIMOTHY L. ) Case No. 8:24-cv-01893-SP ) 12 Plaintiff, ) ) 13 v. ) MEMORANDUM OPINION AND ) ORDER 14 FRANK BISIGNANO, ) Commissioner of Social Security ) 15 Administration, ) ) 16 Defendant. ) ) 17 ) 18 I. 19 INTRODUCTION 20 On August 30, 2024, plaintiff Timothy L. filed a complaint against defendant, the 21 Commissioner of the Social Security Administration (“Commissioner”), seeking a review 22 of a denial of an application for supplemental security income (“SSI”). The parties have 23 fully briefed the matter in dispute, and the court deems the matter suitable for 24 adjudication without oral argument. 25 Plaintiff presents two disputed issues for decision: (1) whether the Administrative 26 Law Judge’s (“ALJ”) residual functional capacity (“RFC”) determination was supported 27 by substantial evidence; and (2) whether the ALJ erred at step five. Plaintiff’s Brief (“P. 28 Mem.”) at 4-10; see Defendant’s Brief (“D. Mem.”) at 2-8. 1 Having carefully studied the parties’ memoranda, the Administrative Record 2 (“AR”), and the decision of the ALJ, the court concludes that, as detailed herein, the ALJ 3 did not err at step five, but the ALJ’s RFC determination was not supported by substantial 4 evidence. The court therefore reverses the decision of the Commissioner denying 5 benefits and remands the matter for further administrative action consistent with this 6 decision. 7 II. 8 FACTUAL AND PROCEDURAL BACKGROUND 9 Plaintiff was 30 years old on his alleged December 10, 2019 onset date. AR at 65. 10 Plaintiff has an 11th-grade education and has no past relevant work. AR at 86, 214. 11 On March 10, 2021, plaintiff filed an application for SSI due to the amputation of 12 his right leg below the knee, congestive heart failure, high blood pressure, fluid in his 13 chest, and an infection in his amputated limb. AR at 65. The application was denied 14 initially and upon reconsideration, after which plaintiff filed a request for a hearing. AR 15 at 65-69, 71-88, 109. 16 On February 12, 2024, plaintiff, represented by counsel, appeared and testified at a 17 hearing before the ALJ. AR at 37-64. The ALJ also heard testimony from Michael 18 Frank, a vocational expert (“VE”). AR at 50-63. On April 29, 2024, the ALJ denied 19 plaintiff’s claim for benefits. AR at 24-32. 20 Applying the well-known five-step sequential evaluation process, the ALJ found, 21 at step one, that plaintiff had not engaged in substantial gainful activity since March 10, 22 2021, the application date. AR at 26. 23 At step two, the ALJ found plaintiff suffered from the following severe 24 impairments: congestive heart failure, right leg below knee amputation, and obesity. Id. 25 At step three, the ALJ found plaintiff’s impairments, whether individually or in 26 combination, did not meet or medically equal one of the impairments set forth in 20 27 C.F.R. part 404, Subpart P, Appendix 1. AR at 27. 28 1 The ALJ then assessed plaintiff’s residual functional capacity, and determined 2 plaintiff had the RFC to perform sedentary work but was limited to: never climbing 3 ladders, ropes, or scaffolds; occasionally performing all other postural movements; 4 avoiding extreme temperatures and pulmonary irritants; mandatory use of a cain for any 5 ambulation; and no foot pedals or controls operated by the lower right extremity. AR at 6 28. 7 The ALJ found, at step four, that plaintiff has no past relevant work. AR at 30. 8 At step five, the ALJ found there were jobs that existed in significant numbers in 9 the national economy plaintiff could perform, including document preparer, call out 10 operator, and addressor. AR at 30-31. Consequently, the ALJ conclude that plaintiff did 11 not suffer from a disability as defined by the Social Security Act. AR at 31. 12 Plaintiff filed a timely request for review of the ALJ’s decision, which the Appeals 13 Council denied. AR at 8-10. The ALJ’s decision stands as the final decision of the 14 Commissioner. 15 III. 16 STANDARD OF REVIEW 17 This court is empowered to review decisions by the Commissioner to deny 18 benefits. 42 U.S.C. § 405(g). The findings and decision of the Social Security 19 Administration must be upheld if they are free of legal error and supported by substantial 20 evidence. Mayes v. Massanari, 276 F.3d 453, 458-59 (9th Cir. 2001) (as amended). But 21 if the court determines the ALJ’s findings are based on legal error or are not supported by 22 substantial evidence in the record, the court may reject the findings and set aside the 23 decision to deny benefits. Aukland v. Massanari, 257 F.3d 1033, 1035 (9th Cir. 2001); 24 Tonapetyan v. Halter, 242 F.3d 1144, 1147 (9th Cir. 2001). 25 “Substantial evidence is more than a mere scintilla, but less than a preponderance.” 26 Aukland, 257 F.3d at 1035. Substantial evidence is such “relevant evidence which a 27 reasonable person might accept as adequate to support a conclusion.” Reddick v. Chater, 28 157 F.3d 715, 720 (9th Cir. 1998); Mayes, 276 F.3d at 459. To determine whether 1 substantial evidence supports the ALJ’s finding, the reviewing court must review the 2 administrative record as a whole, “weighing both the evidence that supports and the 3 evidence that detracts from the ALJ’s conclusion.” Mayes, 276 F.3d at 459. The ALJ’s 4 decision “‘cannot be affirmed simply by isolating a specific quantum of supporting 5 evidence.’” Aukland, 257 F.3d at 1035 (quoting Sousa v. Callahan, 143 F.3d 1240, 1243 6 (9th Cir. 1998)). If the evidence can reasonably support either affirming or reversing the 7 ALJ’s decision, the reviewing court “‘may not substitute its judgment for that of the 8 ALJ.’” Id. (quoting Matney on Behalf of Matney v. Sullivan, 981 F.2d 1016, 1018 (9th 9 Cir. 1992)). 10 IV. 11 DISCUSSION 12 A. The ALJ’s RFC Determination Was Not Supported by Substantial Evidence 13 Plaintiff claims the ALJ’s RFC determination was not supported by substantial 14 evidence. P. Mem. at 5-10. He argues the ALJ improperly rejected all of the medical 15 opinions in the record, and instead relied on his own lay interpretation of the medical 16 evidence to formulate plaintiff’s RFC.1 Id. at 9. Defendant contends the ALJ evaluated 17 the medical evidence in the record and properly formulated an RFC supported by 18 substantial evidence. D. Mem. at 3-8. 19 Residual functional capacity is what one can “still do despite [his or her] 20 limitations.” 20 C.F.R. § 416.945(a)(1). The ALJ reaches an RFC determination by 21 reviewing and considering all of the relevant evidence, including non-severe 22 impairments. 20 C.F.R. § 416.945(a)(1)-(2); see Social Security Ruling (“SSR”) 96-8p 23 (“In assessing RFC, the adjudicator must consider limitations and restrictions imposed by 24 all of an individual’s impairments, even those that are not ‘severe.’”).

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Bluebook (online)
Timothy L. v. Frank Bisignano, Commissioner of Social Security Administration, Counsel Stack Legal Research, https://law.counselstack.com/opinion/timothy-l-v-frank-bisignano-commissioner-of-social-security-cacd-2026.