New York attorney record · Judicial Dept 3
Jonathan Stewart Kaplan
University Of Pennsylvania Law School alumna, admitted to the New York bar in 2017, registered office in New York, NY. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2017
- Admitted
- 9
- Years in bar
- 5507041
- NY reg #
The record in one line
Admitted in 2017, Jonathan Stewart Kaplan has built 9 years of active New York practice - more tenure than 12% of the state's currently-active attorneys.
- 9 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 88%
- by tenure among active NY attorneys
- Law school
- University Of Pennsylvania Law School
Data updated May 2026
What this profile tells you
Bar status & tenure
Bar number 5507041 on the New York register belongs to Jonathan Stewart Kaplan, 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 Simpson Thacher & Bartlett LLP, located in New York, NY (New York County), ZIP 10017. 5 other attorneys share this firm affiliation in the registry. Educational background: University of Pennsylvania Law School (1,880 registered alumni).
State context & due diligence
Jonathan Stewart Kaplan 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
9 years into an active New York practice since a 2017 admission, Jonathan Stewart Kaplan sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
9 years on the New York bar
Years since admission, all currently-active NY attorneys
9 Top 88% higher than 12% of 284,296 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 · May 2026
How Jonathan compares to fellow University Of Pennsylvania Law School alumni
Among the 1,518 University Of Pennsylvania Law School graduates in the New York register, Jonathan Stewart Kaplan is longer-tenured than 11% - a school-cohort view of experience, alongside the statewide one above.
9 years vs. University Of Pennsylvania Law School alumni
Years since admission - 1,518 NY-registered alumni of this school
9 Top 89% higher than 11% of 1,518 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 · May 2026
University Of Pennsylvania Law School's active-bar rate
Of University Of Pennsylvania Law School's 1,880 alumni in the New York register, 77.9% currently hold "Currently registered" status, above the statewide average.
University Of Pennsylvania Law School alumni, active-bar rate
The 2017 admission class today
Of the 8,202 attorneys admitted to the New York bar in 2017, 91.3% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5507041
- Year Admitted
- 2017 (9 yrs · mid-career)
- Judicial Department
- 3
- Next Registration
- Aug 2027
Location & Contact
- Company
- Simpson Thacher & Bartlett LLP
- City
- New York, NY
- County
- New York
- ZIP Code
- 10017
- Phone
- (212) 455-3028
Education
Status Distribution Across the New York Bar
Jonathan Stewart Kaplan's current status, "Currently registered", places this attorney in the 66.2% of the 429,620-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.
Other Attorneys at Simpson Thacher & Bartlett LLP
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Compare attorneys →Before you rely on this record
Jonathan Stewart Kaplan'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 Jonathan Kaplan licensed?
Jonathan Kaplan is licensed to practice law in New York.
When was Jonathan Stewart Kaplan admitted to the bar?
Jonathan Stewart Kaplan has been on the New York bar register since 2017.
Where did Jonathan Stewart Kaplan go to law school?
Jonathan Stewart Kaplan attended University of Pennsylvania Law School.
What company does Jonathan Stewart Kaplan work for?
Jonathan Stewart Kaplan is associated with Simpson Thacher & Bartlett LLP in New York, NY.
Is Jonathan Stewart Kaplan in good standing?
Yes, Jonathan Stewart Kaplan holds active bar status ("Currently registered").
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.