New York attorney record · Judicial Dept 2
John Francis Diffley
St. Johns University alumna, admitted to the New York bar in 2006, registered office in Islandia, NY. This established record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2006
- Admitted
- 20
- Years in bar
- 4415436
- NY reg #
The record in one line
John Francis Diffley 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"
- #158 of 257
- by tenure in Islandia office peers
- Law school
- St. Johns University
Data updated August 2026
What this profile tells you
Bar status & tenure
John Francis Diffley carries New York bar registration 4415436, an established, active practitioner in good standing. Registration is recorded within Judicial Department 2, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Coffey Modica LLP, located in Islandia, NY (Suffolk County), ZIP 11749. 5 other attorneys share this firm affiliation in the registry. Educational background: ST. JOHNS UNIVERSITY (171 registered alumni).
State context & due diligence
With an established practice on record, John Francis Diffley 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
John Francis Diffley 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 · August 2026
Tenure among Islandia, NY office peers
Relative to the 257 NY-registered attorneys listing Islandia, NY, John Francis Diffley is longer-tenured than 61% (local rank #158). See the Islandia attorney directory .
- Local rank
- #158
- City cohort
- 257
- Local percentile
- 61st
- Admitted
- 2006
Nearest tenure peers in Islandia
- Katherine Anne Giovacco admitted 2006 · 20 yr
- Paul John Klemm admitted 2006 · 20 yr
- Diane Monaco Mcclernon admitted 2006 · 20 yr
- Leonard Joseph Badia admitted 2007 · 19 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 St. Johns University alumni
Among the 163 St. Johns University graduates in the New York register, John Francis Diffley is longer-tenured than 27%.
20 years vs. St. Johns University alumni
Years since admission - 163 NY-registered alumni of this school
20 Top 73% higher than 27% of 163 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
St. Johns University's active-bar rate
Of St. Johns University's 171 alumni in the New York register, 73.7% currently hold "Currently registered" status, above the statewide average.
St. Johns University alumni, active-bar rate
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
- 4415436
- Year Admitted
- 2006 (20 yrs · senior)
- Judicial Department
- 2
- Next Registration
- Jan 2028
Location & Contact
- Company
- Coffey Modica LLP
- City
- Islandia, NY
- County
- Suffolk
- ZIP Code
- 11749
- Phone
- (516) 594-0476
Education
Status Distribution Across the New York Bar
John Francis Diffley'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: Coffey Modica LLP
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
Near-tenure St. Johns University 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 Islandia, a vintage cohort, not a neighborhood list.
Verify This Attorney
Verify on NY Courts Attorney SearchNearby Attorneys in Islandia, NY
Compare credentials side-by-side
Compare John Francis Diffley with similar attorneys in Islandia.
Compare attorneys →Before you rely on this record
John Francis Diffley'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 Diffley licensed?
John Diffley is licensed to practice law in New York.
When was John Francis Diffley admitted to the bar?
John Francis Diffley was admitted to the bar in 2006.
Where did John Francis Diffley go to law school?
John Francis Diffley attended ST. JOHNS UNIVERSITY.
What company does John Francis Diffley work for?
John Francis Diffley is associated with Coffey Modica LLP in Islandia, NY.
Is John Francis Diffley in good standing?
Yes, John Francis Diffley 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.