New York attorney record · Judicial Dept 1
Mark D. Koestler
Brooklyn Law School alumna, admitted to the New York bar in 1992, registered office in New York, NY. Decades of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1992
- Admitted
- 34
- Years in bar
- 2456978
- NY reg #
The record in one line
With 34 years on the register since a 1992 admission, Mark D. Koestler ranks among the New York bar's most senior active practitioners, longer-tenured than 71% of the currently-active bar.
- 34 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #16341 of 93,608
- by tenure in New York office peers
- Law school
- Brooklyn Law School
Data updated August 2026
What this profile tells you
Bar status & tenure
Registration 2456978 with the New York bar authority has long belonged to Mark D. Koestler, a veteran practitioner still in active good standing. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Herbert Smith Freehills Kramer (Us) LLP, located in New York, NY (New York County), ZIP 10036. 5 other attorneys share this firm affiliation in the registry. Educational background: Brooklyn Law School (24,865 registered alumni).
State context & due diligence
After 34 years on the register, Mark D. Koestler still falls within the New York bar's active cohort, a share of the register detailed further below.
Experience vs. the active New York bar
Few active New York attorneys match Mark D. Koestler's 34 years since admission in 1992.
34 years on the New York bar
Years since admission, all currently-active NY attorneys
34 Top 29% higher than 71% 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 · August 2026
Tenure among New York, NY office peers
Mark D. Koestler is earlier in the New York, NY office cohort than most peers: local tenure rank #16,341 of 93,608 (17th percentile). See the New York attorney directory .
- Local rank
- #16,341
- City cohort
- 93,608
- Local percentile
- 17th
- Admitted
- 1992
Nearest tenure peers in New York
- Tracy Jill Abatemarco admitted 1992 · 34 yr
- Michele L. Abeles admitted 1992 · 34 yr
- Zev Warren Abraham admitted 1992 · 34 yr
- Robert Alan Abrams admitted 1992 · 34 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 August 2026. Derived local rank, not published upstream.
How Mark compares to fellow Brooklyn Law School alumni
Among the 10,167 Brooklyn Law School graduates in the New York register, Mark D. Koestler is longer-tenured than 99%.
34 years vs. Brooklyn Law School alumni
Years since admission - 10,167 NY-registered alumni of this school
34 Top 1% higher than 99% of 10,167 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
The 1992 admission class today
Of the 6,498 attorneys admitted to the New York bar in 1992, 59.2% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 2456978
- Year Admitted
- 1992 (34 yrs · veteran)
- Judicial Department
- 1
- Next Registration
- May 2028
Location & Contact
- Company
- Herbert Smith Freehills Kramer (Us) LLP
- City
- New York, NY
- County
- New York
- ZIP Code
- 10036
- Phone
- (212) 715-9385
Education
Status Distribution Across the New York Bar
Mark D. Koestler'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.
Other Attorneys at Herbert Smith Freehills Kramer (Us) LLP
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Compare attorneys →Before you rely on this record
Mark D. Koestler'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 Mark Koestler licensed?
Mark Koestler is licensed to practice law in New York.
When was Mark D. Koestler admitted to the bar?
Mark D. Koestler's admission to the New York bar dates back to 1992.
Where did Mark D. Koestler go to law school?
Mark D. Koestler attended Brooklyn Law School.
What company does Mark D. Koestler work for?
Mark D. Koestler is associated with Herbert Smith Freehills Kramer (Us) LLP in New York, NY.
Is Mark D. Koestler in good standing?
Yes, Mark D. Koestler 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.