New York attorney record · Judicial Dept 3
Oisin O'Callaghan
Duke Law alumna, admitted to the New York bar in 2018, registered office in Oakland, CA. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2018
- Admitted
- 8
- Years in bar
- 5608914
- NY reg #
The record in one line
Admitted in 2018, Oisin O'Callaghan has built 8 years of active New York practice - more tenure than 13% of the state's currently-active attorneys.
- 8 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #268 of 312
- by tenure in Oakland office peers
- Law school
- Duke Law
Data updated September 2026
What this profile tells you
Bar status & tenure
Bar number 5608914 on the New York register belongs to Oisin O'Callaghan, 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 Fivetran Inc, located in Oakland, CA, ZIP 94612. Educational background: DUKE LAW.
State context & due diligence
Oisin O'Callaghan 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
8 years into an active New York practice since a 2018 admission, Oisin O'Callaghan sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
8 years on the New York bar
Years since admission, all currently-active NY attorneys
8 Top 87% higher than 13% 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
Tenure among Oakland, CA office peers
Oisin O'Callaghan is among the longer-standing NY-bar records in Oakland, CA: #268 of 312 by years since admission (86th percentile locally). See the Oakland attorney directory .
- Local rank
- #268
- City cohort
- 312
- Local percentile
- 86th
- Admitted
- 2018
Nearest tenure peers in Oakland
- Vladimir Andric admitted 2018 · 8 yr
- Jennifer Tu-Uyen Barrows admitted 2018 · 8 yr
- Michael Joseph Harrell admitted 2018 · 8 yr
- Sophia Katharine House admitted 2018 · 8 yr
How local rank is computed
Rank uses years since NY-bar admission among non-deceased registry rows that list the same office city and state, a local placement, not a statewide claim. Source: NY Office of Court Administration Attorney Registration · as of September 2026. Derived local rank, not published upstream.
The 2018 admission class today
Of the 8,750 attorneys admitted to the New York bar in 2018, 73.4% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5608914
- Year Admitted
- 2018 (8 yrs · mid-career)
- Judicial Department
- 3
- Next Registration
- Nov 2026
Location & Contact
- Company
- Fivetran Inc
- City
- Oakland, CA
- ZIP Code
- 94612
- Phone
- (551) 666-0318
Education
DUKE LAW
Status Distribution Across the New York Bar
Oisin O'Callaghan'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.
Near-tenure Duke Law alumni
Fellow alumni on the NY register whose admission year is closest to 2018 (excluding same-firm colleagues above).
Same admission year (2018), other cities
NY-registered attorneys admitted in 2018 whose listed office city differs from Oakland, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Oisin O'Callaghan: closest NY bar admission year outside CA, and closest out-of-state office cities by how many NY-registered attorneys they list (~313 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2018)
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 SearchNearby Attorneys in Oakland, CA
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Compare Oisin O'Callaghan with similar attorneys in Oakland.
Compare attorneys →Before you rely on this record
Oisin O'Callaghan'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 Oisin O'Callaghan licensed?
Oisin O'Callaghan is licensed to practice law in New York.
When was Oisin O'Callaghan admitted to the bar?
Oisin O'Callaghan has been on the New York bar register since 2018.
Where did Oisin O'Callaghan go to law school?
Oisin O'Callaghan attended DUKE LAW.
What company does Oisin O'Callaghan work for?
Oisin O'Callaghan is associated with Fivetran Inc in Oakland, CA.
Is Oisin O'Callaghan in good standing?
Yes, Oisin O'Callaghan 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.