Riane Cardenas v. Leland Dudek, Acting Commissioner of Social Security

District Court, D. Hawaii·Decided April 27, 2026·No. 1:25-cv-00141·Unknown

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF HAWAI‘I

RIANE CARDENAS, Case No. 25-cv-00141-DKW-KJM

Plaintiff, ORDER REMANDING DECISION OF ACTING COMMISSIONER vs. OF SOCIAL SECURITY

LELAND DUDEK, Acting Commissioner of Social Security,1

Defendant.

Plaintiff Riane Cardenas appeals the Acting Commissioner of Social Security’s denial of her application for disability insurance benefits, arguing that an Administrative Law Judge (ALJ) erred in (1) rejecting Cardenas’ symptom testimony; and (2) discounting several physicians’ opinion evidence. After carefully reviewing the record below and the parties’ submissions, the Court finds that sufficient deficiencies in the ALJ’s discussion of Cardenas’ symptom testimony require remand. Therefore, as more fully explained below, the Court REMANDS this proceeding for further evaluation of Cardenas’ symptom testimony and the medical evidence.

1Pursuant to Federal Rule of Civil Procedure 25(d), Leland Dudek was automatically substituted as the party-defendant in this action upon his appointment as the Acting Commissioner of Social Security. BACKGROUND I. Review of Disability Claims

A five-step process exists for evaluating whether a person is disabled under the Social Security Act (SSA). 20 C.F.R. § 404.1520. First, the claimant must demonstrate that she is not currently involved in any substantial, gainful activity. Id.

§§ 404.1520(a)(4)(i), (b). Second, the claimant must show a medically severe impairment or combination of impairments that significantly limit her physical or mental ability to do basic work activities. Id. §§ 404.1520(a)(4)(ii), (c). Third, if the impairment matches or is equivalent to a listing in the governing regulations, the

claimant is judged conclusively disabled. Id. §§ 404.1520(a)(4)(iii), (d). If the claimant’s impairment does not match or is not equivalent to an established listing, the Commissioner makes a finding about the claimant’s residual

functional capacity (RFC) to perform work. Id. § 404.1520(e). The evaluation then proceeds to a fourth step, which requires the claimant to show her impairment, in light of the RFC, prevents her from performing work she performed in the past. Id. §§ 404.1520(a)(4)(iv), (e), (f). If the claimant is able to perform her previous work,

she is not disabled. Id. § 404.1520(f). If the claimant cannot perform her past work, though, the evaluation proceeds to a fifth step. Id. § 404.1520(a)(v), (g). At this final step, the Commissioner must demonstrate that (1) based upon the claimant’s

RFC, age, education, and work experience, the claimant can perform other work, and (2) such work is available in significant numbers in the national economy. Id. § 404.1560(c); Tackett v. Apfel, 180 F.3d 1094, 1098 (9th Cir. 1999) (explaining

that, at step five, the burden moves to the Commissioner). If the Commissioner fails to meet this burden, the claimant is deemed disabled. 20 C.F.R. § 404.1520(g)(1). II. The ALJ’s Decision

On May 1, 2024, the ALJ issued a decision finding Cardenas not disabled for the purposes of the SSA from the alleged onset date of October 26, 2020 through the date of the decision. Administrative Record (“AR”) at 50. At Step One of the evaluation process, the ALJ determined that Cardenas had not engaged in substantial

gainful activity since October 26, 2020. Id. at 33. At Step Two, the ALJ determined that Cardenas had the following severe impairments: juvenile idiopathic arthritis; left hip osteoarthritis; obesity; asthma; postural tachycardia syndrome; and

migraines. Id. at 33–34. At Step Three, the ALJ determined that Cardenas did not have an impairment or combination of impairments that met or medically equaled the severity of one of the impairments listed in the governing regulations. Id. at 37– 38.

Before reaching Step Four, the ALJ determined that Cardenas had the RFC to perform “sedentary work” that included: the ability to lift up to 10 pounds occasionally and lift 5 pounds frequently, stand and/or walk up to 2 hours in an 8-hour workday, and sit 6 hours in an 8-hour workday, except: ladders, ropes, or scaffolds; frequent reaching, handling, fingering, feeling with the bilateral upper extremities; can do work that is performed in no more than moderate noise level intensity environment; can do work that does not involve exposure to vibration, fumes, odors, dusts, gases, poor ventilation, extreme hot or cold temperatures, and hazardous moving machinery or unprotected heights; no work at production pace, such as assembly line; will require option to change positions for 5 minutes after every hour of standing or walking while remaining on task; and will require option to change positions for 5 minutes after every hour of sitting while remaining on task.

Id. at 38–39. At Step Four, the ALJ determined that Cardenas was capable of performing relevant past work as a medical clerk. Id. at 46-47. Because of this, the ALJ determined that Cardenas was not disabled. Id. at 49–50.23 STANDARD OF REVIEW A court must uphold an ALJ’s decision “unless it is based on legal error or is not supported by substantial evidence.” Ryan v. Comm’r of Soc. Sec., 528 F.3d 1194, 1198 (9th Cir. 2008). “Substantial evidence is more than a mere scintilla but less than a preponderance.” Id. (quotation omitted). Stated differently, “[s]ubstantial evidence means such relevant evidence as a reasonable mind might accept as adequate to support a conclusion.” Burch v. Barnhart, 400 F.3d 676, 679 (9th Cir. 2005) (quotation omitted). “Where evidence is susceptible to more than one rational

2The ALJ also determined that Cardenas was not disabled following a Step Five analysis. AR at 48. 3The Appeals Council denied Cardenas’s request for review of the ALJ’s decision, meaning that the ALJ’s decision became the final decision of the Acting Commissioner. AR at 1. interpretation, it is the ALJ’s conclusion that must be upheld.” Id. at 679; see also Treichler v. Comm’r of Soc. Sec. Admin., 775 F.3d 1090, 1098 (9th Cir. 2014)

(“[Courts] leave it to the ALJ to determine credibility, resolve conflicts in the testimony, and resolve ambiguities in the record.”). In addition, a court may not reverse an ALJ’s decision on account of an error

that is harmless. Tommasetti v. Astrue, 533 F.3d 1035, 1038 (9th Cir. 2008). “[T]he burden of showing that an error is harmful normally falls upon the party attacking the agency’s determination.” Molina v. Astrue, 674 F.3d 1104, 1111 (9th Cir. 2012) (quotation and citation omitted). In making this assessment, a court “look[s] at the

record as a whole to determine whether the error alters the outcome of the case.” Id. at 1115. DISCUSSION

In her Opening Brief, Dkt. No. 21, Cardenas challenges the ALJ’s decision in two areas: (1) the ALJ’s finding that Cardenas’ complaints were not credible; and (2) the ALJ’s evaluation of opinion evidence. For the reasons set forth more fully below, because the ALJ’s evaluation of Cardenas’ symptom testimony requires

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

Riane Cardenas v. Leland Dudek, Acting Commissioner of Social Security, (D. Haw. 2026).

Riane Cardenas v. Leland Dudek, Acting Commissioner of Social Security (Riane Cardenas v. Leland Dudek, Acting Commissioner of Social Security) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

Related

Molina v. Astrue
674 F.3d 1104 (Ninth Circuit, 2012)
Clinton Hiler v. Michael Astrue
687 F.3d 1208 (Ninth Circuit, 2012)
Tommasetti v. Astrue
533 F.3d 1035 (Ninth Circuit, 2008)
Ryan v. Commissioner of Social Security
528 F.3d 1194 (Ninth Circuit, 2008)
Karen Garrison v. Carolyn W. Colvin
759 F.3d 995 (Ninth Circuit, 2014)
Kim Brown-Hunter v. Carolyn W. Colvin
806 F.3d 487 (Ninth Circuit, 2015)
Reddick v. Chater
157 F.3d 715 (Ninth Circuit, 1998)
Tackett v. Apfel
180 F.3d 1094 (Ninth Circuit, 1999)