Approval rates
Comparing a judge's lifetime approval rate to recent office and national averages provides a helpful perspective on their decision-making history. Judge Zimmerman has maintained a lifetime approval rate of 48% over 18,055 decisions. In the most recent reporting period, their approval rate was 59%, which can be measured against the Orange Hearing Office average of 62% and the national average of 58%. These aggregate rates describe past decisions rather than predicting outcomes for your specific hearing.
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 Zimmerman's docket. Annual rates fluctuate with the mix of cases SSA assigns; the longer-run pattern is more informative than any single year.
Decision pattern
Over a 9-year tenure, Judge Zimmerman has presided over a significant volume of cases. The yearly trend indicates a period of relative stability followed by a notable upward shift in approval rates in recent years, moving from 44% in 2021 to 59% in 2025. This recent activity suggests a departure from the earlier lifetime average, potentially reflecting changes in case complexity or the quality of evidence presented. This pattern highlights the importance of presenting a well-documented case regardless of historical trends.
Preparing for an SSDI hearing
The guidance below applies to any SSDI hearing, not specifically to Judge Zimmerman'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.
Hearing with Judge Zimmerman? Free, confidential — see if you qualify for SSDI.
Free Benefits ReviewAbout the Orange hearing office
The Orange Hearing Office serves a large population in California, managing a high volume of SSDI claims. With a bench of 6 judges, the office maintains an active docket and follows standard SSA procedures for hearing conduct. The office currently reports an approval rate of 62%, reflecting the local environment in which your case will be heard. You can visit the Orange Hearing Office page for the full ALJ roster.
Other judges at this hearing office
The Social Security Administration utilizes a workload-balancing algorithm to assign cases, meaning the judge you are assigned is essentially random. Across the Orange Hearing Office, lifetime approval rates among the bench range from 44% to 59%. Because each judge has a unique approach to evaluating evidence, understanding the broader office environment is useful for your preparation.
Your odds change dramatically with a lawyer
SSDI hearing approval rates — represented vs. on your own
Source: U.S. Government Accountability Office, GAO-18-37. The 3× gap is a population-wide average across all judges; individual outcomes vary.