New York attorney record · Judicial Dept 1
John P. Denneen
Columbia University alumna, admitted to the New York bar in 1966. A half-lifetime's worth of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1966
- Admitted
- 60
- Years in bar
- 1428598
- NY reg #
The record in one line
John P. Denneen carries a "Delinquent" status on the New York bar register, on record since 1966 - confirm the exact standing and any discipline history directly with the state bar before engaging.
- 60 yrs
- since first admission to the bar
- Suspended
- current bar status: "Delinquent"
- Law school
- Columbia University
Data updated August 2026
What this profile tells you
Bar status & tenure
John P. Denneen is registered as bar number 1428598 with the New York bar authority, carrying a current status of "Delinquent", suspended or delinquent, verify terms with the bar before engaging. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.
Practice context & education
Even after 60 years on the register, no firm or business address is on file for this attorney. Educational background: COLUMBIA UNIVERSITY (3,238 registered alumni).
State context & due diligence
A "Delinquent" status falls outside the New York bar's active cohort. The breakdown below shows what share of the register that represents, and how to verify current standing directly with the state bar.
How John compares to fellow Columbia University alumni
Among the 1,229 Columbia University graduates in the New York register, John P. Denneen is longer-tenured than 99%.
60 years vs. Columbia University alumni
Years since admission - 1,229 NY-registered alumni of this school
60 Top 1% higher than 99% of 1,229 fellow alumni
Each bar is a band; taller bars hold more fellow alumni. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · August 2026
Columbia University's active-bar rate
Of Columbia University's 3,238 alumni in the New York register, 53.6% currently hold "Currently registered" status, below the statewide average.
Columbia University alumni, active-bar rate
The 1966 admission class today
Of the 1,587 attorneys admitted to the New York bar in 1966, 23.7% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Delinquent
- Registration Number
- 1428598
- Year Admitted
- 1966 (60 yrs · veteran)
- Judicial Department
- 1
- Next Registration
- Aug 2026
Location & Contact
Education
Status Distribution Across the New York Bar
John P. Denneen's current status, "Delinquent", places this record outside the 67.2% of the 432,625-attorney New York register currently marked active.
Full statewide breakdown & source note
Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.
Near-tenure Columbia University alumni
Fellow alumni on the NY register whose admission year is closest to 1966 .
Same admission year (1966), other cities
NY-registered attorneys admitted in 1966 whose listed office city differs from this record, a vintage cohort, not a neighborhood list.
Verify This Attorney
Verify on NY Courts Attorney SearchBefore you rely on this record
John P. Denneen carries a "Delinquent" status. Verify the exact scope and dates of this action directly with the state bar before acting on it.
Frequently Asked Questions
Where is John Denneen licensed?
John Denneen is licensed to practice law in New York.
When was John P. Denneen admitted to the bar?
John P. Denneen's admission to the New York bar dates back to 1966.
Where did John P. Denneen go to law school?
John P. Denneen attended COLUMBIA UNIVERSITY.
Is John P. Denneen in good standing?
No, John P. Denneen carries a "Delinquent" status, not active standing. Confirm the exact scope directly with the state bar before engaging.
Cite this page & disclosure
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.