OPINION OF THE COURT
This appeal by an unsuccessful claimant for disability benefits requires us to determine if the district court properly dismissed his petition in which he sought review of the Secretary of Health, Education and Welfare’s decision not to reopen appellant’s claim. The United States magistrate, to whom the case was referred, determined that, under 42 U.S.C. § 405(g), 1 the district court was without jurisdiction to review the Secretary’s decision because the Secretary had properly concluded that reopening was barred by res judicata. We agree and affirm the judgment of the district court which adopted the magistrate’s report.
Requesting a hearing before an administrative law judge, on January 3, 1980, Stauffer filed the instant disability claim. He stated that he would submit new evidence, not available at the time of his earlier claim. The ALJ determined that the proffered evidence was irrelevant, however, because it consisted of a recently performed physical examination which failed to establish that Stauffer’s present disabled condition began before the date on which his insured status expired. Applying
res judi-cata,
he dismissed the claim, and the Department’s Appeals Council affirmed. Stauffer again appealed to the district court, but adopting the report of the magistrate to whom the case had been referred, the court concluded that under
Califano v. Sanders,
We find no error in the district court proceedings. In Sanders, the Supreme Court declared that § 405(g)
clearly limits judicial review to a particular type of agency action, a “final decision of the Secretary made after a hearing.” But a petition to reopen a prior final decision may be denied without a hearing as provided in § 205(b), 42 U.S.C. § 405(b) (1970 ed., Supp. V) .... Indeed, the opportunity to reopen final decisions and any hearing convened to determine the propriety of such action are afforded by the Secretary’s regulations and not by the Social Security Act. Moreover, an interpretation that would allow a claimant judicial review simply by filing — and being denied — a petition to reopen his claim would frustrate the congressional purpose, plainly evidenced in § 205(g), to impose a 60-day limitation upon judicial review of the Secretary’s final decision on the initial claim for benefits. 20 CFR § 404.951 (1976). Congress’ determination so to limit judicial review to the original decision denying benefits is a policy choice obviously designed to forestall repetitive or belated litigation of stale eligibility claims. Our duty, of course, is to respect that choice.
The magistrate reviewing the claim examined the allegations and determined that, inasmuch as Stauffer conceded that the same claim was involved in his second filing,
res judicata
was properly applied. Then, turning to Stauffer’s contention that refusal to reopen his claim was a denial of due process, she considered the applicability of an exception enunciated in
Sanders
for constitutional questions unsuited to resolution in administrative hearings.
See
Stauffer argues also that, by ordering him to take a physical examination, the Secretary effectively reopened his claim, thereby giving the district court jurisdiction. However, we have said that
[w]hen a claimant is not represented by counsel, the hearing officer may have a duty to take a more active role in obtaining the information necessary for a determination on the question of disability. In appropriate cases, the ALJ should advise the claimant if vital data is missing or should order a physical examination by a Social Security Administration doctor.
Gachette v. Weinberger,
[t]he administrative law judge has the power and duty to investigate fully all matters in issue, and to develop the comprehensive record required for a fair determination of disability.... This duty to probe and explore scrupulously all the relevant facts is particularly strict when the claimant, as here, is not represented by an attorney.
It is clear that the ALJ here was performing precisely this duty. Stauffer’s brief indicates that he was unrepresented by counsel until after he had requested a hearing before the ALJ. It would appear that by requesting Stauffer to be physically examined, the Secretary did not reopen the claim, but merely insured that the request for a reopening of the claim would be fairly evaluated.
Accordingly, the judgment of the district court will be affirmed.
Notes
. Section 405(g) provides, in relevant part, that [a]ny individual, after any final decision of the Secretary made after a hearing to which he was a party, irrespective of the amount in controversy, may obtain a review of such decision by a civil action commenced within sixty days after the mailing to him of notice of such decision or within such further time as the Secretary may allow.
