Prothero v. Bisignano

CourtDistrict Court, N.D. Illinois
DecidedSeptember 24, 2025
Docket3:23-cv-50369
StatusUnknown

This text of Prothero v. Bisignano (Prothero v. Bisignano) is published on Counsel Stack Legal Research, covering District Court, N.D. Illinois primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Prothero v. Bisignano, (N.D. Ill. 2025).

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE NORTHERN DISTRICT OF ILLINOIS WESTERN DIVISION

Breanne P., Plaintiff, Case No. 3:23-cv-50369 v. Honorable Michael F. Iasparro Frank J. Bisignano, Commissioner of Social Security,

Defendant.

MEMORANDUM OPINION AND ORDER Plaintiff Breanne P. brings this action under 42 U.S.C. § 405(g) seeking reversal or a remand of the decision denying her application for disability insurance benefits.1 For the reasons set forth below, the Commissioner’s decision is reversed, and this case is remanded. BACKGROUND Plaintiff filed an application for disability insurance benefits, alleging a disability onset date of March 10, 2019, and with a date last insured of June 30, 2020. R. 193, 88. Following a hearing, an administrative law judge (“ALJ”) issued an unfavorable decision in May 2023. R. 17- 34. The ALJ found that Plaintiff had the following severe impairments: hypertension; migraine headaches; diabetes mellitus; bipolar I disorder; opioid dependence; and anxiety disorder. R. 20. The ALJ also found that Plaintiff had the following non-severe impairments: mixed hyperlipidemia; obstructive sleep apnea; sinusitis and chronic otitis media; myopia; acute burn to the fourth and fifth fingers of her left hand; and gastroesophageal reflux disease. R. 20-21. Plaintiff’s fibromyalgia was found to be non-medically determinable. R. 22-24. The ALJ, in consideration of all Plaintiff’s medically determinable impairments, concluded that Plaintiff, as of her date last insured, had the residual functional capacity (“RFC”) to perform light work with the following limitations: no climbing of ladders, ropes, or scaffolds; occasional balancing, stooping, kneeling, crouching, crawling, and climbing ramps or stairs; avoid extreme temperatures and workplace hazards, such as unprotected heights and dangerous, moving machinery; understand, remember, and carry out simple and detailed, but not complex, work instructions; able to sustain the necessary attention and concentration in two-hour increments throughout the day to sustain simple job duties assuming typical workday breaks; make simple work-related decisions;

1 The parties have consented to the jurisdiction of a United States Magistrate Judge for all proceedings pursuant to 28 U.S.C. § 636(c). See Dkt. 9. respond appropriately to supervision, co-workers, and usual work situations in a routine work setting; and able to deal with occasional changes. R. 26. The ALJ determined that Plaintiff was unable to perform past relevant work but that she could perform other jobs that existed in significant numbers in the national economy. R. 32. The Appeals Council denied Plaintiff’s request for review on October 3, 2023, making the ALJ’s decision the final decision of the Commissioner. R. 1-6; 20 C.F.R. § 404.900(a)(5). Plaintiff then filed this action seeking judicial review. Dkt. 1. STANDARD OF REVIEW A reviewing court may enter judgment “affirming, modifying, or reversing the decision of the [Commissioner], with or without remanding the cause for a rehearing.” 42 U.S.C. § 405(g). If supported by substantial evidence, the Commissioner’s factual findings are conclusive. Id. The court’s review of the Commissioner’s findings is subject to “a very deferential standard.” Thorlton v. King, 127 F.4th 1078, 1081 (7th Cir. 2025). When reviewing the ALJ’s decision, the court’s inquiry is limited to determining whether the ALJ’s decision is supported by substantial evidence or resulted from an error of law. Mandrell v. Kijakazi, 25 F.4th 514, 515 (7th Cir. 2022). Substantial evidence is “such relevant evidence as a reasonable mind might accept as adequate to support a conclusion.” Biestek v. Berryhill, 587 U.S. 97, 103 (2019). “The threshold for substantial evidence ‘is not high.’” Warnell v. O’Malley, 97 F.4th 1050, 1052 (7th Cir. 2024) (quoting Biestek, 587 U.S. at 103). The substantial evidence standard is satisfied when the ALJ provides “an explanation for how the evidence leads to their conclusions that is sufficient to allow us, as a reviewing court, to assess the validity of the agency’s ultimate findings and afford [the appellant] meaningful judicial review.” Warnell, 97 F.4th at 1054 (internal quotation marks and citation omitted). To determine whether substantial evidence exists, the court reviews the record as a whole but “will not reweigh the evidence, resolve debatable evidentiary conflicts, determine credibility, or substitute [its] judgment for the ALJ’s determination so long as substantial evidence supports it.” Id. at 1052–53; Beardsley v. Colvin, 758 F.3d 834, 836 (7th Cir. 2014). Thus, “we will reverse an ALJ’s decision only if the record compels a contrary result.” Thorlton, 127 F.4th at 1081 (citation modified). DISCUSSION Plaintiff challenges the Commissioner’s decision based on four alleged errors the ALJ committed by: (1) refusing to consider evidence generated after the date last insured; (2) improperly finding fibromyalgia to be a non-medically determinable impairment at step two; (3) failing to properly consider Plaintiff’s ability to stay on task and comply with the attendance requirements of employment; and (4) failing to build a logical bridge from the evidence to her RFC determination. The Court agrees that the ALJ’s step two analysis was flawed and requires remand. 1) The ALJ’s Step 2 Analysis Plaintiff alleges that the ALJ erred at step two when she found fibromyalgia to be a non- medically determinable impairment. Plaintiff argues the ALJ came to this conclusion by misrepresenting medical records and completely failing to address the criteria outlined by the Social Security Administration. Dkt. 13, at *9-11. Conversely, the Commissioner argues that the ALJ did not err in her step two analysis as she properly considered fibromyalgia and Plaintiff does not meet all of the criteria needed to establish fibromyalgia as a medically determinable impairment (MDI). The Commissioner further contends that any error in the ALJ’s analysis at step two was ultimately harmless. Dkt. 16, at *3-6. As discussed in further detail below, the Court finds that the ALJ did not provide substantial evidence for her conclusion that Plaintiff’s fibromyalgia was a non-medically determinable impairment, and this error was not harmless. At step two, an ALJ is tasked with determining whether a claimant has an MDI and, if so, whether that impairment is severe. 20 C.F.R. § 404.1521. The regulations provide that an MDI “must result from anatomical, physiological, or psychological abnormalities that can be shown by medically acceptable clinical and laboratory diagnostic techniques” rather than a claimant’s own “statement of symptoms, a diagnosis, or a medical opinion.” Id. Plaintiff has been diagnosed with fibromyalgia, a disease which often eludes precise description – “[i]ts cause or causes are unknown, there is no cure, and, of greatest importance to disability law, its symptoms are entirely subjective.” Sarchet v.

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Bluebook (online)
Prothero v. Bisignano, Counsel Stack Legal Research, https://law.counselstack.com/opinion/prothero-v-bisignano-ilnd-2025.