Karen Louise K. v. Frank Bisignano

District Court, D. Nevada·Decided June 12, 2026·No. 2:25-cv-01126·Unknown

Opinion

* * *

Karen Louise K.,1 Case No. 2:25-cv-01126-BNW

Plaintiff, ORDER

v.

Frank Bisignano,

Defendant.

This case involves review of an administrative action by the Commissioner of Social Security denying Plaintiff’s application for disability benefits under Titles II and XVI of the Social Security Act. Plaintiff filed an opening brief asking the Court to reverse and award benefits, or in the alternative, remand the case for further proceedings. ECF No. 11. The Commissioner opposed and Plaintiff replied. ECF Nos. 13 and 14. For the reasons discussed below, the Court reverses and remands the case for further proceedings. On September 10, 2021, Plaintiff filed for disability insurance benefits under Title II of the Social Security Act as well as supplemental security income under Title XVI, alleging an onset date of September 3,2021. Administrative Record (“AR”) 4612. Plaintiff’s claim was denied initially and upon reconsideration. Id. A telephonic hearing was held before Administrative Law Judge (“ALJ”) Jeffrey Mastin on May 21, 2024. Id. On May 31, 2024, ALJ Mastin found that Plaintiff was not disabled. Id. at 191. AR 4613. It should be noted that Plaintiff received a prior unfavorable decision on September 1, 2021, which ALJ Mastin considered in the context of Chavez and Acquiescence Ruling 97-4(9). AR 4612. Plaintiff appealed that decision to the Appeals Council, which denied her request for review. AR 211, 1–6. Plaintiff then commenced this action for judicial review 1 In the interest of privacy, this opinion only uses the first name and last initial of the under 42 U.S.C. § 405(g) on September 22, 2025. See ECF No. 1. Administrative decisions in Social Security disability-benefits cases are reviewed under 42 U.S.C. § 405(g). See Akopyan v. Barnhart, 296 F.3d 852, 854 (9th Cir. 2002). Section 405(g) provides that “[a]ny individual, after any final decision of the Commissioner of Social Security made after a hearing to which [s]he was a party, irrespective of the amount in controversy, may obtain a review of such decision by a civil action. . . brought in the district court of the United States for the judicial district in which the plaintiff resides.” The Court may enter “upon the pleadings and transcripts of the record, a judgment affirming, modifying, or reversing the decision of the Commissioner of Social Security, with or without remanding the cause for a rehearing.” 42 U.S.C. § 405(g). The Commisioner’s findings of fact are conclusive if supported by substantial evidence. See id.; Ukolov v. Barnhart, 420 F.3d 1002 (9th Cir. 2005). However, the Commissioner’s findings may be set aside if they are based on legal error or not supported by substantial evidence. See Stout v. Comm’r, Soc. Sec. Admin., 454 F.3d 1050, 1052 (9th Cir. 2006); Thomas v. Barnhart, 278 F.3d 947, 954 (9th Cir. 2002). The Ninth Circuit defines substantial evidence as “more than a mere scintilla but less than a preponderance; it is such relevant evidence as a reasonable mind might accept as adequate to support a conclusion.” Andrews v. Shalala, 53 F.3d 1035, 1039 (9th Cir. 1995); see also Bayliss v. Barnhart, 427 F.3d 1211, 1214 n.1 (9th Cir. 2005). In determining whether the Commissioner’s findings are supported by substantial evidence, the Court “must review the administrative record as a whole, weighing both the evidence that supports and the evidence that detracts from the Commissioner’s conclusion.” Reddick v. Chater, 157 F. 3d 715, 720 (9th Cir. 1998); see also Smolen v. Chater, 80 F.3d 1273, 1279 (9th Cir. 1996). Under the substantial evidence test, findings must be upheld if supported by inferences reasonably drawn from the record. Batson v. Comm’r, 359 F.3d 1190, 1193 (9th Cir. 2004). When the evidence supports more than one rational interpretation, the court must defer to the Commissioner’s interpretation. See Burch v. Barnhart, 400 F.3d 676, 679 (9th Cir. 2005); Flaten v. Sec’y of Health & Human Serv., 44 F.3d 1453, 1457 (9th Cir. 1995). Thus, the issue before the Court is not whether the Commissioner could have reasonably reached a different conclusion, but whether the final decision is supported by substantial evidence. Burch, 400 F.3d at 679. It is incumbent on the ALJ to make specific findings so that the Court does not speculate as to the basis of the findings when determining if the Commissioner’s decision is supported by substantial evidence. Lewin v. Schweiker, 654 F.2d 631, 634 (9th Cir. 1981). Mere cursory findings of fact without explicit statements as to what portions of the evidence were accepted or rejected are not sufficient. Id. The ALJ’s findings “should be as comprehensive and analytical as feasible, and where appropriate, should include a statement of subordinate factual foundations on which the ultimate factual conclusions are based.” Id. A. Disability evaluation process and the ALJ decision The individual seeking disability benefits has the initial burden of proving disability. Roberts v. Shalala, 66 F.3d 179, 182 (9th Cir. 1995). To meet this burden, the individual must demonstrate the “inability to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected. . . to last for a continuous period of not less than 12 months.” 42 U.S.C. § 423(d)(1)(A). The individual also must provide “specific medical evidence” in support of her claim for disability. 20 C.F.R. § 404.1514. If the individual establishes an inability to perform other substantial gainful work that exists in the national economy. Reddick, 157 F.3d at 721. The ALJ follows a five-step sequential evaluation process in determining whether an individual is disabled. See 20 C.F.R. § 404.1520(a); Bowen v. Yuckert, 482 U.S. 137, 140 (1987). If at any step the ALJ determines that she can make a finding of disability or non-disability, a determination will be made, and no further evaluation is required. See 20 C.F.R. § 404.1520(a)(4); Barnhart v. Thomas,

Karen Louise K. v. Frank Bisignano, (D. Nev. 2026).

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