S. ALLAN ALEXANDER, Magistrate Judge.
This case involves a request under 42 U.S.C. § 405(g) for judicial review of the decision of the Commissioner of Social Security denying plaintiff Roy Madison Sessums's applications for period of disability or disability insurance benefits (DIB) under Section 216(I) and 223 of the Social Security Act, and for supplemental security income payments under Section 1614(a)(3) of the Act. Plaintiff protectively applied for DIB and SSI on January 5, 2010, alleging that he became disabled on October 1, 2009. The plaintiff's claim was denied initially and on reconsideration. Id. at 72-74, 79-83. Plaintiff timely requested a hearing, which was held on September 15, 2011. Id. at 70, 465-509. The ALJ issued a partially favorable decision on February 15, 2012. Id. at 15-27. Plaintiff requested and was denied review by the Appeals Council via letter on December 3, 2012. Id. at 6-8. The plaintiff timely filed this appeal from the Commissioner's most recent decision, and it is now ripe for review. In accordance with the provisions of 28 U.S.C. § 636(c), both parties have consented to have a magistrate judge conduct all the proceedings in this case, the undersigned therefore has the authority to issue this opinion and the accompanying final judgment.
The plaintiff was born on August 25, 1965, and was 46 years old at the time of the hearing. Docket 7, p. 85. He has a high school education and attended three years of college. Id. at 478-79. His past relevant work was as a boxman/gambling dealer, floor supervisor, waiter and lawn service worker. Id. at 499-501. He contends that he became disabled on October 1, 2009 as a result of "congestive heart failure, possible sleep apnea and high blood pressure." Id. at 110.
The ALJ determined that the plaintiff suffered from "severe" impairments including congestive heart failure, hypertension and obesity, but that these impairments did not meet or equal a listed impairment in 20 C.F.R. Part 404, Subpart P, App. 1(20 CFR 404.1520(d), 404.1525 and 404.1526, 416.920(d), 416.925 and 416.926). Docket 7, p. 19. The ALJ found that before July 24, 2011, the date that the the ALJ concluded plaintiff did become disabled, he retained the Residual Functional Capacity (RFC) to
perform light work as defined in 20 CFR 404.1567(b) and 416.967(b), with additional limitations. He had to have the option to sit or stand every thirty minutes; could never climb ropes, ladders, or scaffolds; and could only occasionally balance, stoop, kneel, crawl, crouch, or climb ramps or stairs. He had to avoid all exposure to extreme heat or cold; unprotected heights or moving, hazardous, or dangerous machinery; and could not perform any commercial driving. He had to avoid concentrated exposure to pulmonary irritants such as fumes, odors, dusts, gases, chemicals, or poorly ventilated areas.
Id. at 19-20. In light of testimony by a vocational expert [VE] at the hearing, the ALJ found that even though plaintiff was incapable of performing his past relevant work before July 24, 2011, other jobs existed in significant numbers in the national economy that plaintiff could have performed, and plaintiff therefore was not disabled under the Social Security Act. Id. at 25-26. However, the ALJ concluded that beginning on July 24, 2011, plaintiff could only perform sedentary work, and because of his general medical condition, plaintiff would be off task more than 20% of the workday, thus rendering him disabled under the Act. Id. at 24. Plaintiff's date last insured was June 30, 2011; because the ALJ determined that plaintiff was not disabled until July 24, 2011, plaintiff was awarded SSI benefits, but not DIB. To qualify for DIB or POD benefits, plaintiff must have become disabled before his date last insured.
Plaintiff contends that the ALJ erred when he discredited plaintiff's wife's written statement, discounted Dr. Brian K. Wall's medical opinion, did not consider whether plaintiff's sleep apnea is an impairment, did not find him disabled within the window of insured status and improperly evaluated his credibility. Because the undersigned is of the opinion that the ALJ's decision is not supported by substantial evidence because she did not properly evaluate plaintiff's impairments - specifically his sleep apnea - in combination with his other severe impairments, the court need not address the remaining issues.
II. STANDARD OF REVIEW
In determining disability, the Commissioner, through the ALJ, works through a five-step sequential evaluation process. The burden rests upon plaintiff throughout the first four steps of this five-step process to prove disability, and if plaintiff is successful in sustaining his burden at each of the first four levels, then the burden shifts to the Commissioner at step five. First, plaintiff must prove he is not currently engaged in substantial gainful activity. Second, plaintiff must prove his impairment is "severe" in that it "significantly limits [his] physical or mental ability to do basic work activities...." At step three the ALJ must conclude plaintiff is disabled if he proves that his impairments meet or are medically equivalent to one of the impairments listed at 20 C.F.R. Part 404, Subpart P, App. 1, §§ 1.00-114.09 (2010). If plaintiff does not meet this burden, at step four he must prove that he is incapable of meeting the physical and mental demands of his past relevant work. At step five, the burden shifts to the Commissioner to prove, considering plaintiff's residual functional capacity, age, education and past work experience, that he is capable of performing other work. If the Commissioner proves other work exists which plaintiff can perform, plaintiff is given the chance to prove that he cannot, in fact, perform that work.
The court considers on appeal whether the Commissioner's final decision is supported by substantial evidence and whether the Commissioner used the correct legal standard. Crowley v. Apfel, 197 F.3d 194, 196 (5th Cir. 1999), citing Austin v. Shalala, 994 F.2d 1170 (5th Cir. 1993); Villa v. Sullivan, 895 F.2d 1019, 1021 (5th Cir. 1990). The court has the responsibility to scrutinize the entire record to determine whether the ALJ's decision was supported by substantial evidence and whether the proper legal standards were applied in reviewing the claim. Ransom v. Heckler, 715 F.2d 989, 992 (5th Cir. 1983). The court has limited power of review and may not reweigh the evidence or substitute its judgment for that of the Commissioner,  even if it finds that the evidence leans against the Commissioner's decision. The Fifth Circuit has held that substantial evidence is "more than a scintilla, less than a preponderance, and is such relevant evidence as a reasonable mind might accept as adequate to support a conclusion." Crowley v. Apfel, 197 F.3d 194, 197 (5th Cir. 1999) (citation omitted). Conflicts in the evidence are for the Commissioner to decide, and if there is substantial evidence to support the decision, it must be affirmed even if there is evidence on the other side. Selders v. Sullivan, 914 F.2d 614, 617 (5th Cir. 1990). The court's inquiry is whether the record, as a whole, provides sufficient evidence that would allow a reasonable mind to accept the conclusions of the ALJ. Richardson v. Perales, 402 U.S. 389, 401 (1971). "If supported by substantial evidence, the decision of the [Commissioner] is conclusive and must be affirmed." Paul v. Shalala, 29 F.3d 208, 210 (5th Cir. 1994), citing Richardson v. Perales, 402 U.S. 389, 390, 28 L.Ed.2d 842 (1971).
Plaintiff contends that the ALJ's failure to determine whether his sleep apnea was a severe or non-severe impairment, along with the resulting failure to consider the effect of sleep apnea in combination with his heart failure, resulted in an ultimate decision regarding plaintiff's disability during the insured period that is unsupported by the evidence. Docket 13, p. 19-22. The Commissioner "agrees that the ALJ did not make a finding as to whether sleep apnea was a medically severe or non-severe impairment, " but denies that failure was error. Docket 14, p. 11. Instead, the Commissioner offers the otherwise unsupported argument that because "Plaintiff demonstrated the ability to obtain necessary medical care for the conditions that truly ailed him, there is no legitimate basis for Plaintiff's failure to seek a definitive diagnosis of, and treatment for, his alleged sleep apnea." Id. at p. 12. The Commissioner provides no authority to support this assertion, instead minimizing the medical opinion of Dr. Elizabeth Webb, its own consultative examiner, who addressed plaintiff's possible sleep apnea. The Commissioner acknowledges the two-step analysis required by 20 C.F.R. §§ 404;1520(a)(4)(ii), 404 1521, 416.920(a)(4)(ii) and 416.921, but ignores the fact that the ALJ wholly failed to abide by that requirement, never even considering whether the condition was medically determinable, much less whether it was medically severe or non-severe.
The Commissioner's argument is wholly without merit. First, plaintiff did not obtain all of the necessary medical care for the conditions that "truly ailed him." He was unable to take very necessary heart medication and went months without taking it because he could not afford to pay for simple office visits with Dr. Strong. Docket 7, p. 470, 482-83. Further, Dr. Webb, the consulting examiner retained by the Commissioner, noted that a cardiologist had ordered a sleep study, but that plaintiff could not afford it. Docket 7, p. 151. She also noted that plaintiff has three siblings with obstructive sleep apnea, that he snores badly and is tired all of the time. Id. Dr. Webb found that "[a]s far as functional ...