New York attorney record · Judicial Dept 1
Ksenia Yanovna Portnoy
University Of Pennsylvania alumna, admitted to the New York bar in 2006, registered office in Boston, MA. This established record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2006
- Admitted
- 20
- Years in bar
- 4452058
- NY reg #
The record in one line
Ksenia Yanovna Portnoy has held an active New York bar license for 20 years - admitted in 2006, longer-tenured than 51% of the state's currently-active attorneys.
- 20 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #1060 of 2,912
- by tenure in Boston office peers
- Law school
- University Of Pennsylvania
Data updated September 2026
What this profile tells you
Bar status & tenure
Ksenia Yanovna Portnoy carries New York bar registration 4452058, an established, active practitioner in 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 Fidelity, located in Boston, MA, ZIP 02210. 5 other attorneys share this firm affiliation in the registry. Educational background: UNIVERSITY OF PENNSYLVANIA (2,351 registered alumni).
State context & due diligence
With an established practice on record, Ksenia Yanovna 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
Ksenia Yanovna Portnoy was admitted in 2006, giving 20 years on the New York register.
20 years on the New York bar
Years since admission, all currently-active NY attorneys
20 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 Boston, MA office peers
Ksenia Yanovna Portnoy is earlier in the Boston, MA office cohort than most peers: local tenure rank #1,060 of 2,912 (36th percentile). See the Boston attorney directory .
- Local rank
- #1,060
- City cohort
- 2,912
- Local percentile
- 36th
- Admitted
- 2006
Nearest tenure peers in Boston
- Ariane Sophie Baczynski admitted 2006 · 20 yr
- Sandra J. Badin admitted 2006 · 20 yr
- Timothy John Becker admitted 2006 · 20 yr
- Michael Ari Behar admitted 2006 · 20 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 Ksenia compares to fellow University Of Pennsylvania alumni
Among the 1,836 University Of Pennsylvania graduates in the New York register, Ksenia Yanovna Portnoy is longer-tenured than 40%.
20 years vs. University Of Pennsylvania alumni
Years since admission - 1,836 NY-registered alumni of this school
20 Top 60% higher than 40% of 1,836 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
University Of Pennsylvania's active-bar rate
Of University Of Pennsylvania's 2,351 alumni in the New York register, 71.8% currently hold "Currently registered" status, above the statewide average.
The 2006 admission class today
Of the 8,638 attorneys admitted to the New York bar in 2006, 66.6% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 4452058
- Year Admitted
- 2006 (20 yrs · senior)
- Judicial Department
- 1
- Next Registration
- May 2028
Location & Contact
- Company
- Fidelity
- City
- Boston, MA
- ZIP Code
- 02210
- Phone
- (617) 563-6883
Education
Status Distribution Across the New York Bar
Ksenia Yanovna 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: Fidelity
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
Near-tenure University Of Pennsylvania alumni
Fellow alumni on the NY register whose admission year is closest to 2006 (excluding same-firm colleagues above).
Same admission year (2006), other cities
NY-registered attorneys admitted in 2006 whose listed office city differs from Boston, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Ksenia Yanovna Portnoy: closest NY bar admission year outside MA, and closest out-of-state office cities by how many NY-registered attorneys they list (~2,913 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2006)
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
Ksenia Yanovna 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 Ksenia Portnoy licensed?
Ksenia Portnoy is licensed to practice law in New York.
When was Ksenia Yanovna Portnoy admitted to the bar?
Ksenia Yanovna Portnoy was admitted to the bar in 2006.
Where did Ksenia Yanovna Portnoy go to law school?
Ksenia Yanovna Portnoy attended UNIVERSITY OF PENNSYLVANIA.
What company does Ksenia Yanovna Portnoy work for?
Ksenia Yanovna Portnoy is associated with Fidelity in Boston, MA.
Is Ksenia Yanovna Portnoy in good standing?
Yes, Ksenia Yanovna 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.