New York attorney record · Judicial Dept 3
Niall Michael O'Sullivan
Ucc alumna, admitted to the New York bar in 2013. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2013
- Admitted
- 13
- Years in bar
- 5133335
- NY reg #
The record in one line
Admitted in 2013, Niall Michael O'Sullivan has built 13 years of active New York practice - more tenure than 25% of the state's currently-active attorneys.
- 13 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 75%
- by tenure among active NY attorneys
- Law school
- Ucc
Data updated September 2026
What this profile tells you
Bar status & tenure
Bar number 5133335 on the New York register belongs to Niall Michael O'Sullivan, currently in active standing. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Abbott Products Operations Ag, located in 4123 Allschwil. 2 other attorneys share this firm affiliation in the registry. Educational background: UCC.
State context & due diligence
Niall Michael O'Sullivan is currently part of the New York bar's active cohort, a group the breakdown below sizes against the full register.
Experience vs. the active New York bar
13 years into an active New York practice since a 2013 admission, Niall Michael O'Sullivan sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
13 years on the New York bar
Years since admission, all currently-active NY attorneys
13 Top 75% higher than 25% of 290,787 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. 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 · September 2026
The 2013 admission class today
Of the 10,251 attorneys admitted to the New York bar in 2013, 90.5% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5133335
- Year Admitted
- 2013 (13 yrs · mid-career)
- Judicial Department
- 3
- Next Registration
- Aug 2027
Location & Contact
- Company
- Abbott Products Operations Ag
- City
- 4123 Allschwil
- Phone
- 41 61 487 05 02
Education
UCC
Status Distribution Across the New York Bar
Niall Michael O'Sullivan's current status, "Currently registered", places this attorney in 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.
Same firm affiliation: Abbott Products Operations Ag
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
View all attorneys at this firm →Same admission year (2013), other cities
NY-registered attorneys admitted in 2013 whose listed office city differs from 4123 Allschwil, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Out-of-state NY bar peers for Niall Michael O'Sullivan with the closest admission year to 2013. Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
Verify This Attorney
Verify on NY Courts Attorney SearchBefore you rely on this record
Niall Michael O'Sullivan's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is Niall O'Sullivan licensed?
Niall O'Sullivan is licensed to practice law in New York.
When was Niall Michael O'Sullivan admitted to the bar?
Niall Michael O'Sullivan has been on the New York bar register since 2013.
Where did Niall Michael O'Sullivan go to law school?
Niall Michael O'Sullivan attended UCC.
What company does Niall Michael O'Sullivan work for?
Niall Michael O'Sullivan is associated with Abbott Products Operations Ag in 4123 Allschwil.
Is Niall Michael O'Sullivan in good standing?
Yes, Niall Michael O'Sullivan holds active bar status ("Currently registered").
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.