New York attorney record · Judicial Dept 3
John Alan Greenhall
George Washington University alumna, admitted to the New York bar in 2013, registered office in Philadelphia, PA. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2013
- Admitted
- 13
- Years in bar
- 5134523
- NY reg #
The record in one line
Admitted in 2013, John Alan Greenhall has built 13 years of active New York practice - more tenure than 25% of the state's currently-active attorneys.
- 13 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #1130 of 1,853
- by tenure in Philadelphia office peers
- Law school
- George Washington University
Data updated August 2026
What this profile tells you
Bar status & tenure
Bar number 5134523 on the New York register belongs to John Alan Greenhall, 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 Cohen, Seglias, Pallas, Greenhall & Furman, P.C., located in Philadelphia, PA, ZIP 19103. 2 other attorneys share this firm affiliation in the registry. Educational background: GEORGE WASHINGTON UNIVERSITY (1,511 registered alumni).
State context & due diligence
John Alan Greenhall 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
13 years into an active New York practice since a 2013 admission, John Alan Greenhall sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
13 years on the New York bar
Years since admission, all currently-active NY attorneys
13 Top 75% higher than 25% 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 Philadelphia, PA office peers
John Alan Greenhall's 13-year NY register tenure places mid-pack in Philadelphia, PA: rank #1,130 of 1,853 office peers (61st percentile). See the Philadelphia attorney directory .
- Local rank
- #1,130
- City cohort
- 1,853
- Local percentile
- 61st
- Admitted
- 2013
Nearest tenure peers in Philadelphia
- Melissa Vanessa Aaron-Cooper admitted 2013 · 13 yr
- Opeyemi Oluwatola Akanbi admitted 2013 · 13 yr
- Emily Beth Ashe admitted 2013 · 13 yr
- Andrew Monroe Baer admitted 2013 · 13 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 John compares to fellow George Washington University alumni
Among the 1,050 George Washington University graduates in the New York register, John Alan Greenhall is longer-tenured than 4%.
13 years vs. George Washington University alumni
Years since admission - 1,050 NY-registered alumni of this school
13 Top 96% higher than 4% of 1,050 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
George Washington University's active-bar rate
Of George Washington University's 1,511 alumni in the New York register, 71.3% currently hold "Currently registered" status, above the statewide average.
The 2013 admission class today
Of the 10,251 attorneys admitted to the New York bar in 2013, 90.5% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5134523
- Year Admitted
- 2013 (13 yrs · mid-career)
- Judicial Department
- 3
- Next Registration
- Mar 2027
Location & Contact
- Company
- Cohen, Seglias, Pallas, Greenhall & Furman, P.C.
- City
- Philadelphia, PA
- ZIP Code
- 19103
- Phone
- (215) 564-1700
Education
Status Distribution Across the New York Bar
John Alan Greenhall'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: Cohen, Seglias, Pallas, Greenhall & Furman, P.C.
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
View all attorneys at this firm →Near-tenure George Washington University alumni
Fellow alumni on the NY register whose admission year is closest to 2013 (excluding same-firm colleagues above).
Same admission year (2013), other cities
NY-registered attorneys admitted in 2013 whose listed office city differs from Philadelphia, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for John Alan Greenhall: closest NY bar admission year outside PA, and closest out-of-state office cities by how many NY-registered attorneys they list (~1,854 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2013)
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 Philadelphia, PA
Compare credentials side-by-side
Compare John Alan Greenhall with similar attorneys in Philadelphia.
Compare attorneys →Before you rely on this record
John Alan Greenhall'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 John Greenhall licensed?
John Greenhall is licensed to practice law in New York.
When was John Alan Greenhall admitted to the bar?
John Alan Greenhall has been on the New York bar register since 2013.
Where did John Alan Greenhall go to law school?
John Alan Greenhall attended GEORGE WASHINGTON UNIVERSITY.
What company does John Alan Greenhall work for?
John Alan Greenhall is associated with Cohen, Seglias, Pallas, Greenhall & Furman, P.C. in Philadelphia, PA.
Is John Alan Greenhall in good standing?
Yes, John Alan Greenhall 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.