Law school · thin NY alumni set
University Of Columbia
6 NY-registered attorneys from University Of Columbia, including Oscar R. Delgiudice, Dora Lizette Irizarry, Walter Edward Maloney, Hidetoshi Masunaga, Koichiro Ohashi, and Israel Weinberger; Brooklyn, NY appears most.
- 6
- NY alumni (thin set)
- 33.3%
- still active
- Brooklyn
- largest office city
University Of Columbia: Oscar R. Delgiudice and 5 other NY-registered alumni
This page covers 6 NY OCA rows for University Of Columbia, including Oscar R. Delgiudice, Dora Lizette Irizarry, Walter Edward Maloney, Hidetoshi Masunaga, Koichiro Ohashi, and Israel Weinberger.
2 (33.3%) remain active; Brooklyn, NY appears most often (1); newest admission year 2002.
Every University Of Columbia alumnus on this register
| Name | Status |
|---|---|
| Oscar R. Delgiudice | Deceased |
| Dora Lizette Irizarry | Currently registered |
| Walter Edward Maloney | Deceased |
| Hidetoshi Masunaga | Currently registered |
| Koichiro Ohashi | Due to reregister within 30 days of birthday |
| Israel Weinberger | Suspended, currently registered |
Status on a thin alumni set
Cities that appear at all
Recent admission surge
Questions this small set can answer
Who from University Of Columbia appears on the NY register?
Named on this page: Oscar R. Delgiudice, Dora Lizette Irizarry, Walter Edward Maloney, Hidetoshi Masunaga, Koichiro Ohashi, and Israel Weinberger. In total 6 NY OCA rows list University Of Columbia; 2 (33.3%) are currently active.
Which city shows up most for these University Of Columbia rows?
Brooklyn, NY appears on 1 of the 6 records (17%). With a thin set, one attorney moves the share a lot.
Nationwide law schools with similar NY alumni volume or active rate
Two non-geo peer axes for University Of Columbia: closest NY OCA alumni volume, and closest share of currently-registered alumni. Distinct from the high-volume ladder below.
Similar alumni volume (~6)
Similar active rate (~33.3%)
Counts and active rates come from the NY State Office of Court Administration registration extract; peers are not a bar-exam quality or employment ranking.
Schools near University Of Columbia on the NY register
Other thin-to-mid NY alumni schools near this page include New York University School Of Law.
Side-by-side: University Of Columbia vs New York University School Of Law →
Source, verification & disclosure
Disclaimer: This data is sourced from public state bar registration records. PlainAttorney does not provide legal advice or endorsements. Always verify attorney credentials directly with the relevant state bar.
Source: NY Office of Court Administration via data.ny.gov - attorney registration dataset · as of September 2026.
Verification: NY Courts Attorney Registration Search.
Methodology: sourcing, computation, verification.