SSA Administrative Law Judge

Hon. Mary P. Parnow

Last decided San FranciscoJul 2026
Decisions 3,677since 2016

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Approval rates

Comparing approval rates requires looking at consistent timeframes. While Mary P. Parnow maintains a 53% approval rate across all decisions since 2016, recent performance shows a 56% approval rate in the latest reporting period. This latest-period figure sits 10 percentage points above the San Francisco office average of 46%. These metrics are based on a significant volume of decisions, providing a stable statistical foundation for your review.

All decisions on record SSA records since 2016
Approval rate 53%
Decisions on record 3,677
Latest SSA reporting period July 31, 2026
Metric Judge Parnow San Francisco National
Approval rate 56% 46% 58%
Fully favorable 50% — —
Denials 44% — —

Office- and national-level breakdowns of fully favorable vs denial rates aren't currently published by SSA in the per-office disposition data. The judge's own breakdown is the detail we have today.

Approval rate over time

Year-over-year approval rate across Judge Parnow's docket. Annual rates fluctuate with the mix of cases SSA assigns; the longer-run pattern is more informative than any single year.

Judge Parnow
0%20%40%60%80%100%FY16FY26
Source: SSA OHO disposition data. Approval rate (SSA's term: allowance rate) = fully favorable + partially favorable decisions divided by total decisions, which exclude dismissals.

Decision pattern

Since 2016, Mary P. Parnow has issued 3,677 decisions. After an initial period of steady approval rates, the data reflects fluctuations, with the most recent fiscal year-to-date period showing a 56% approval rate. This recent performance indicates a slight divergence from the 53% average observed over the full record. These patterns often shift based on the specific mix of medical evidence and case complexity presented in your hearing.

Preparing for an SSDI hearing

The guidance below applies to any SSDI hearing, not specifically to Judge Parnow's bench. Judge-specific preparation guidance requires a corpus of public Appeals Council decisions involving each judge, which we haven't built yet.

  • Bring a clean treating-physician record. Longitudinal primary-care or specialist notes spanning the disability period, with consistent symptom documentation, are typically the strongest evidence at hearing. A single month's records usually aren't enough.
  • Don't rely on consultative exams alone. If your medical evidence is built primarily around a one-time CE finding, expect detailed questioning. Supplement with treating-source statements where possible.
  • Prepare for daily-activity questions. Have honest, specific answers about a typical day. Answers that conflict with the medical record (in either direction) tend to hurt credibility.
  • Expect transferable-skills probing. A vocational expert will usually testify about jobs available to someone with your limitations. Your representative should be prepared to cross-examine.

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About the San Francisco hearing office

The San Francisco Hearing Office is the most recent office on record for Mary P. Parnow as of July 2026. This office maintains a bench of 10 judges whose most recent office on record is this location, reflecting a broad range of decision-making patterns. You can expect a formal hearing process where the quality of your medical documentation remains the primary factor in your outcome. You can see the San Francisco Hearing Office page for the full ALJ roster.

Other judges whose most recent office on record is San Francisco

The Social Security Administration uses a workload-balancing algorithm to assign cases, meaning the judge you are assigned is essentially random. Within the San Francisco office, there are 10 judges whose most recent office on record is this location. These judges demonstrate a wide range of approval rates, spanning from 28% to 65% on their records since 2016. Your preparation remains the same regardless of which judge you are assigned.

Approval rates change with a lawyer

WITHOUT A LAWYER
1×
baseline approval rate
Unrepresented claimants
WITH A LAWYER
~3×
higher approval rate
Represented claimants

Source: U.S. Government Accountability Office, GAO-18-37. The 3× gap is a population-wide average across all judges; individual outcomes vary.

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