New York attorney record · Judicial Dept 3
Jason L Portnoy
Boston University alumna, admitted to the New York bar in 2004, registered office in Tarrytown, NY. This established record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2004
- Admitted
- 22
- Years in bar
- 4217139
- NY reg #
The record in one line
Jason L Portnoy has held an active New York bar license for 22 years - admitted in 2004, longer-tenured than 51% of the state's currently-active attorneys.
- 22 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #211 of 403
- by tenure in Tarrytown office peers
- Law school
- Boston University
Data updated September 2026
What this profile tells you
Bar status & tenure
Jason L Portnoy carries New York bar registration 4217139, an established, active practitioner in good 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 Regeneron Pharmaceuticals, Inc., located in Tarrytown, NY (Westchester County), ZIP 10591. 5 other attorneys share this firm affiliation in the registry. Educational background: BOSTON UNIVERSITY.
State context & due diligence
With an established practice on record, Jason L Portnoy remains inside the New York bar's active cohort - see below for how that share of the register compares.
Experience vs. the active New York bar
Jason L Portnoy was admitted in 2004, giving 22 years on the New York register.
22 years on the New York bar
Years since admission, all currently-active NY attorneys
22 Top 49% higher than 51% 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 Tarrytown, NY office peers
Relative to the 403 NY-registered attorneys listing Tarrytown, NY, Jason L Portnoy is longer-tenured than 52% (local rank #211). See the Tarrytown attorney directory .
- Local rank
- #211
- City cohort
- 403
- Local percentile
- 52nd
- Admitted
- 2004
Nearest tenure peers in Tarrytown
- Andrew C. Chien admitted 2004 · 22 yr
- Paige E Cooperman admitted 2004 · 22 yr
- Larry A Coury admitted 2004 · 22 yr
- Annemarie F. Dempsey admitted 2004 · 22 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.
How Jason compares to fellow Boston University alumni
Among the 1,948 Boston University graduates in the New York register, Jason L Portnoy is longer-tenured than 17%.
22 years vs. Boston University alumni
Years since admission - 1,948 NY-registered alumni of this school
22 Top 83% higher than 17% of 1,948 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 · September 2026
The 2004 admission class today
Of the 8,407 attorneys admitted to the New York bar in 2004, 65.2% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 4217139
- Year Admitted
- 2004 (22 yrs · senior)
- Judicial Department
- 3
- Next Registration
- Jan 2028
Location & Contact
- Company
- Regeneron Pharmaceuticals, Inc.
- City
- Tarrytown, NY
- County
- Westchester
- ZIP Code
- 10591
- Phone
- (914) 847-3277
Education
BOSTON UNIVERSITY
Status Distribution Across the New York Bar
Jason L Portnoy'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: Regeneron Pharmaceuticals, Inc.
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
Near-tenure Boston University alumni
Fellow alumni on the NY register whose admission year is closest to 2004 (excluding same-firm colleagues above).
Same admission year (2004), other cities
NY-registered attorneys admitted in 2004 whose listed office city differs from Tarrytown, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Jason L Portnoy: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~404 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2004)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
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Compare attorneys →Before you rely on this record
Jason L Portnoy'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 Jason Portnoy licensed?
Jason Portnoy is licensed to practice law in New York.
When was Jason L Portnoy admitted to the bar?
Jason L Portnoy was admitted to the bar in 2004.
Where did Jason L Portnoy go to law school?
Jason L Portnoy attended BOSTON UNIVERSITY.
What company does Jason L Portnoy work for?
Jason L Portnoy is associated with Regeneron Pharmaceuticals, Inc. in Tarrytown, NY.
Is Jason L Portnoy in good standing?
Yes, Jason L Portnoy 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.