After review and absent objection, the Magistrate Judge’s Recommended Ruling is approved, adopted & ratified. SO OR­DERED.

*29 MAGISTRATE JUDGE’S OPINION

This is an action brought under § 205(g) of the Social Security Act [hereinafter “the Act”], 42 U.S.C. § 405(g), to review a final determination of the Secretary of Health and Human Services [hereinafter “Secretary”] that denied plaintiffs application for Social Security benefits. Presently before the court are the parties’ cross-motions for judg­ment. For the following reasons, the defen­dant’s motion should be denied, the plaintiffs motion should be granted, and this matter should be remanded to the Secretary solely for the purposes of calculating and awarding benefits.

I. FACTS & PRIOR PROCEEDINGS

Plaintiff was born on May 13, 1948. He attended secondary school, but he did not go farther than the eighth grade. (Transcript of Record [hereinafter “Tr.”] at 36). He did, however, obtain a G.E.D., and he attended Worcester State College in Massachusetts for a year. (Tr. at 36). Plaintiff has a varied work history, including experience as an elec­trician’s apprentice, an automobile salesper­son, and a census taker, but, for purposes of this claim, the Secretary concluded that plaintiff has no relevant past work. (Tr. at 15).

Plaintiff served in an infantry unit of the U.S. Marine Corps during the Vietnam War. While in the Marine Corps, he earned the rank' of lance corporal. He was decorated with the National Defense Service Medal, the Vietnam Service Medal, the Good Conduct Medal, and was discharged honorably. (Plaintiffs Memorandum at 3). Plaintiff al­leges that, as a result of his service in Viet­nam, he began to experience nightmares, a concomitant loss of sleep, outbursts of anger, hyper vigilance, and other symptoms. (Id,.). These symptoms allegedly reached a point in the late 1970’s, when plaintiff became a virtu­al recluse, that they precluded him from engaging in any substantial gainful activity. In 1988, plaintiff was diagnosed as suffering from post traumatic stress disorder (PTSD), delayed. (Id.).

Plaintiff filed an application for disability benefits on August 15,1990, asserting that he was disabled since December 1, 1980, due to heart murmur, gastrointestinal problems, tendinitis of both shoulders, PTSD, asthma, and arthritis. (Tr. at 96, 164). The applica­tion was denied at both the initial and recon­sideration levels of review. (Tr. at 115-117, 134-136). Plaintiff appealed the decision de­nying benefits to an Administrative Law Judge [hereinafter “ALJ”], who held a hear­ing at which the plaintiff and his wife testi­fied.

At the hearing the plaintiff testified about the horrifying'experiences in Vietnam that gave rise to his subsequent mental impair­ment. He stated that he began to have nightmares, which became more frequent and bizarre around 1979. (Tr. at 64). The nightmares were, so intense that he was un­able to sleep for days at a time. (Tr. at 67-­68). He also testified about his volatile tem­per and the trouble it had brought about. (Tr. at 4CMJ). When asked why he could not work, he answered “I don’t get along with other people at all. I ... hide at home all the time_ I’m afraid to go out a lot.” (Tr. at 39).

Plaintiffs wife testified about plaintiffs dif­ficulty sleeping, his reclusive behavior, and his problems with his temper. (Tr. at 82). She stated that when they married in 1979 plaintiff “had real problems.” (Tr. at 80). She also testified that it was only in the last year,. since plaintiff began receiving treat­ment, that she noticed any improvement. (Tr. at 81)..

Although he conceded that, as of the date plaintiff was last insured—June 30, 1983— plaintiff had PTSD, the ALJ found that plaintiff was not disabled within the meaning of the Act on or before that date. The Appeals Council declined to review the ALJ’s determination, and plaintiff sought review in this court.

II. SCOPE OF REVIEW

In reviewing a denial of disability benefits, the court may not make a de novo determination of whether the plaintiff is dis­abled. 42 U.S.C. § 405(g); Wagner v. Secre­tary of Health & Human Services, 906 F.2d *30 856, 860 (2d Cir. 1990). The function of the court is to ascertain whether the Secretary applied the correct legal principles in making the determination and whether the determi­nation is supported by substantial evidence. 1 Johnson v. Bowen, 817 F.2d 983, 985 (2d Cir. 1987). Absent legal error, this court may not set aside the decision of the Secretary if it is supported by substantial evidence. Bluvband v. Heckler, 730 F.2d 886, 891 (2d Cir. 1984); Berry v. Schweiker, 675 F.2d 464, 467 (2d Cir. 1982). Moreover, if supported by substantial evidence, the Secretary’s finding will be sustained even where substantial evi­dence may support the plaintiff’s position and despite that the reviewing court, had it heard the evidence de novo, might have found oth­erwise. Rutherford v. Schweiker, 685 F.2d 60, 62 (2d Cir. 1982), cert. denied, 459 U.S. 1212, 103 S.Ct. 1207, 75 L.Ed.2d 447 (1983); Rivera v. Harris, 623 F.2d 212, 216 (2d Cir.­1980).

III. STATUTORY & REGULATORY PROVISIONS

Title II of the Social Security Act provides for the payment of insurance benefits to per­sons who have contributed to the program and who suffer from a physical or mental disability. 42 U.S.C. § 423(a)(1)(D). In or­der to qualify for Title II benefits, a claimant must have been disabled within the meaning of the Act on or prior to the last date on which he was insured. There is no dispute that for the plaintiff this date is June 30, 1983. Thus, to receive benefits, plaintiff must establish that, on or before that date, he was unable “to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than 12 months.” 42 U.S.C. § 423(d)(1). The im­pairment must be of such severity that the person

is not only unable to do his previous work but cannot, considering his age, education, and work experience, engage in any other kind of substantial gainful work which ex­ists in the national economy, regardless of whether such work exists in the immediate area in which he lives, or whether a specif­ic job vacancy exists for him, or whether he would be hired if he applied for work.

42 U.S.C. § 423(d)(2)(A).

The burden of establishing disability rests with the plaintiff. Aubeuf v. Schweik­er, 649 F.2d 107, 111 (2d Cir. 1981). In order to determine disability, the facts that must be considered are “(1) objective medical facts; (2) diagnosis or medical opinions based on those facts; (3) subjective evidence of pain and disability testified to by claimant and other witnesses; and (4) the claimant’s back­ground, age, and experience.” Williams ex rel. Williams v. Bowen, 859 F.2d 255, 259 (2d Cir. 1988). See also Mongeur v. Heckler, 722 F.2d 1033, 1037 (2d Cir. 1983). The stan­dards for finding disability are “to be applied in light of the fact that ‘the ... Act is a remedial statute, to be broadly construed and liberally applied.’” Gold v. Secretary of Health, Educ. & Welfare, 463 F.2d 38, 41 (2d Cir. 1972) (quoting Haberman v. Finch, 418 F.2d 664, 667 (2d Cir. 1969)).

The Secretary has established a five-­step sequential evaluation process for deter­mining whether a person is disabled. See Bowen v. Yuckert, 482 U.S. 137, 140-142, 107 S.Ct. 2287, 2290-2292, 96 L.Ed.2d 119 (1987). First, the Secretary considers if the claimant is presently working in substantial gainful activity. If not, the Secretary next considers if the claimant has a medically severe impairm­ent. 2 If the severity requirement is met, the third inquiry is whether the impairment is listed in Appendix 1 of the regulations or is *31 equal to a listed impairment. See 20 C.F.R. Pt. 404, Subpt. P. App. 1 (1993). If so, disability is granted. If not, the fourth inqui­ry is to determine whether, despite the se­vere impairment, the claimant’s residual functional capacity allows him or her to per­form any past work. If a claimant demon­strates that no past work can be performed, the Secretary then has the burden of proving that the claimant “still retains a residual functional capacity to perform alternative substantial gainful work which exists in the national economy.” Bapp v. Bowen, 802 F.2d 601, 604 (2d Cir. 1986) (citing Berry v. Schweiker, 675 F.2d 464, 467 (2d Cir. 1982); Parker v. Harris, 626 F.2d 225, 231 (2d Cir. 1980)).

IV. DISCUSSION

Following the Secretary’s five-step scheme, the ALJ found that the plaintiff had not engaged in substantial gainful activity, and that the plaintiff had a severe impair­ment, although not one listed or equal to one listed in the' Regulations, . The ALJ also found that the plaintiff had no past relevant work. The resolution of this case, therefore, depends upon the last step in the sequential evaluation, and the issue that must be deter­mined is whether the Secretary carried the burden of proof with respect to the question of whether plaintiff retained the capacity to perform alternative work as of the date he was last insured. '

The ALJ found that plaintiff was not dis­abled as of his date last insured. He con-­eluded that plaintiff was capable of engaging in substantial gainful activity, although plain­tiff “probably had some degree of limitation dealing with others such that he would have been limited to employment not requiring close dealings with other people.” (Tr. at 17). Plaintiff claims the ALJ’s findings are not based on substantial evidence, and that the ALJ applied erroneous legal standards in resolving plaintiffs claim. Because the court agrees with each assertion, the final decision of the Secretary cannot stand.

It is clear from an examination of the entire record that the ALJ misapprehended the law in evaluating plaintiffs claim. The comments and observations that the ALJ made during the hearing reveal that the ALJ erroneously believed that he could not find the plaintiff disabled unless there was a clear and unambiguous statement by a physician that described the plaintiff as “disabled” pri- or to the date last insured. 3 To be sure, such a statement may well provide the basis for a finding of disability; 4 but its absence from the record is not sufficient reason for deny­ing a claim where, as here, the evidence as a whole amply established that plaintiff was disabled within the meaning of the Act be­fore the expiration of his Title II insured status. 5

In this case,'contrary to the opinion of the ALJ, there was strong evidence establishing both the nature and degree of plaintiffs im­pairment during the relevant period of time. With respect to the nature of plaintiffs im­ *32 pairment, there are numerous reports in the record that corroborate plaintiffs claim that he suffered from PTSD during the relevant time period. 6 It is not necessary, however, to examine them in detail because the ALJ found that, as of the date last insured, “claimant had a post-traumatic stress disor­der and a neurotic character disorder.” (Tr. at 17). Thus, it was only the alleged degree of plaintiffs impairment that the ALJ found questionable. 7

It is the Secretary’s function to appraise the credibility of witnesses, including the plaintiff, Carroll v. Secretary of Health & Human Services, 705 F.2d 638, 642 (2d Cir.­1983), and, where the correct legal standard is applied, the court must defer to the credi­bility determination of the ALJ, who had the opportunity to observe the demeanor of the witness. “The ALJ has discretion to evalu­ate the credibility of a claimant and to arrive at an independent judgment, in light of medi­cal findings and other evidence, regarding the true extent of the [disability alleged] by the claimant.” Marcus v. Califano, 615 F.2d 23, 27 (2d Cir. 1979).

In this case, the ALJ based his determina­tion of credibility on the “objective and other evidence.” (See Tr. at 18). 8 To the extent the ALJ equated “objective evidence” with “medical evidence,” he erred as a matter of law. Moreover, the time-relevant medical evidence before the ALJ, although sparse, does not support the inferences drawn by the ALJ. For instance, Dr. Liepman’s first let­ter states:

[Plaintiff] suffers from a chronic anxiety disorder ([PTSD]) which first became ap­parent in 1966-67_ [U]pon his return to the U.S., he was able to function to some degree until 1976-77 when he began to become reclusive.... [His symptoms have] resulted in marked difficulties in maintaining social function and repeated episodes of decompensation in work set­tings in which he withdrew from the situa­tion. Altogether, I believe [t]his has im­paired [his] functions to an extent that he cannot reasonably support himself and his family.

(Tr. at 253). The ALJ understood Dr. Liep-­man’s opinion as a

mere[] state[ment] that the claimant suf­fered from a chronic anxiety disorder which first became apparent in 1966 to 1966, and was able to function to some degree until 1976 to 1977, which [sic] he .began to become reclusive. Dr. Liepman does not indicate that the claimant’s condi­tion was of disabling severity at the time of his date last insured on June 30, 1983.

(Tr. at 16). The ALJ’s understanding of Dr. Liepman’s assessment is inherently illogical. The ALJ took Dr. Liepman’s assessment to mean that plaintiff could “function to some *33 degree until,” which necessarily implies that, after the “until,” plaintiff could no longer function. Instead, the ALJ concludes that there was no opinion with regard to the disabling severity of the condition. The Sec­retary presented absolutely no medical evi­dence that plaintiffs condition improved sub­sequent to the “until” date. 9 The only logical conclusion, therefore, is that plaintiffs condi­tion continued.

Dr. Liepman’s second letter buttresses this conclusion. 10 He states:

I find it hard to believe- that the [Secre­tary] could believe that [plaintiffs] current level of dysfunction began suddenly. [PTSD] is chronic. While I did not know nor examine [plaintiff] prior to 30 June, 1983,1 am convinced that his function was impaired then as well as now.

(Tr. at 259). Dr. Liepman then goes on to list the symptoms that plaintiff indisputably manifested during the relevant time period in order to support his conclusion. Dr. Liep-­man’s letters, if not the first taken alone, certainly meet the speculation tolerance level of Dousewicz v. Harris, 646 F.2d 771 (2d Cir. 1981).

This, however, does not end the inquiry. Although he apparently accepted the retro­spective diagnosis of PTSD, the ALJ deter­mined that the degree of plaintiffs impair­ment did not meet the statutory criteria. “While [retrospective] medical opinions are not conclusive, ‘a circumstantial critique by non-physicians, however thorough or respon­sible, must be overwhelmingly compelling, in order to overcome a medical opinion.’ ” Riv­era v. Sullivan, 923 F.2d 964, 968 (2d Cir.­1991) (quoting Wagner v. Secretary of Health & Human Services, 906 F.2d 856, 862 (2d Cir. 1990)). Since it has already been deter­mined that the ALJ’s assessment of the med­ical evidence was internally inconsistent, il­logical, and, hence, not based on substantial evidence, all that is left to the Secretary’s “circumstantial critique,” which can be equat­ed to the credibility determination, is the “other evidence.”

By “other evidence,” the court assumes that the ALJ is referring to the record as a whole. This blanket justification will not suf­fice. As the finder of fact, the ALJ was free to accept or reject the testimony of the plain­tiff, but a “finding that the witness was not credible must nevertheless be set forth with sufficient specificity to permit intelligible ple­nary review of the record..” Williams ex rel. Williams v. Bowen, 859 F.2d 255, -260-61 (2d Cir. 1988) (citing Carroll v. Secretary of Health & Human Services, 705 F.2d 638, 643 (2d Cir. 1983)). On this record, intelligible review of the ALJ’s credibility determination is impossible. 11

The ALJ’s critique of Dr. Liepman’s retro­spective opinion as to the extent of plaintiffs impairment is hardly thorough or responsi­ble/and it is definitely not compelling. It therefore fails to meet the standards set forth in Wagner, supra, 906 F.2d at 862.

The Secretary must assess all of the evi­dence in light of the objective medical facts and diagnoses. Williams ex rel. Williams v. Bowen, 859 F.2d 255, 261 (2d Cir. 1988). In *34 this case, the testimony given by plaintiff and Mrs. Donahue is consistent with the objective medical evidence and the opinions, of the experts. The failure of the Secretary to present any medical evidence in conjunction with the failure to make an intelligible deter­mination of the credibility of the witnesses defeats the Secretary’s contention that there is substantial evidence to support the ALJ’s determination.

In a case such as this, where the Secretary failed to present any medical evidence in contravention to that presented by the plain­tiff and where the evidence in the record established that plaintiff is entitled to bene­fits, the ease should be reversed rather than remanded. See Parker v. Harris, 626 F.2d 225, 235 (2d Cir. 1980) (holding reversal ap­propriate “when the record provides persua­sive proof of disability and a remand for further evidentiary proceedings would serve no purpose”).

y. CONCLUSION

For the above-mentioned reasons, the ALJ erred in the determination of whether the plaintiff was disabled as of his date last insured. Accordingly, defendant’s motion for judgment (filing # 11) should be DENIED, the plaintiff’s motion (filing # 10) should be GRANTED, and an order should issue re­manding this matter to the Secretary solely for the purposes of calculating and awarding benefits.

Either party may seek review of this re­port and recommendation as provided in 28 Ü.S.C. § 636(b) (written objections to recom­mended ruling must be filed within 10 days of service of same); Fed.R.Civ.P. 6(a), 6(e), & 72; and Rule 2 of the Local Rules for United States Magistrate Judges.