John P. Diiorio
On the New York attorney register since 1984 · office in Hackensack, NJ
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 1916022
- Admitted
- 1984 · Second Department
- Status
- Currently registered
- Next registration
- Jan 2028
John P. Diiorio is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 1984 in the Second Department, with an office in Hackensack, NJ; next registration due Jan 2028. The status is the same in all 3 files we hold.
What this status means on the register
On the register, “Currently registered” means John P. Diiorio has filed the biennial registration the court system requires; the next one is due in Jan 2028.
- Currently registered unchanged
- Currently registered unchanged
- Currently registered the first file we hold
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; the Jul 3, 2026 and Aug 6, 2026 files for the history.
Others who list this employer on the register
The register gives this attorney’s employer as “Shapiro & Croland”. We count that spelling with Shapiro, Croland, Reiser, Apfel & Diiorio, LLP, the name most registrants give for the firm now; the register does not say where the attorney works today.
8 other attorneys list Shapiro, Croland, Reiser, Apfel & Diiorio, LLP or one of its other names as their employer on the register; 3 of them were admitted before 1984, and 7 of the 9 give an office in Hackensack, NJ. The 5 whose admission is closest to 1984, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Kenneth S. Apfel | 1975 | Due to re‑register |
| Stuart Reiser | 1981 | Currently registered |
| Robert P. Shapiro | 1981 | Due to re‑register |
| David Owen Marcus | 1984 | Currently registered |
| Alexander G. Benisatto | 2001 | Currently registered |
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; employer spellings merged (methodology).
Where this record sits on the register
John P. Diiorio studied at St. John’s University School of Law (the register spells it “St. John's University School of Law”). 3,059 of its 15,595 living graduates on the register were admitted in the 1980s, as John P. Diiorio was.
- Same law school
- 15,595living graduates; 88.6% registered (current or due), against 87.1% overall
- Office in Hackensack, NJ
- 684living registrants (outside New York State)
Of the 684 living registrants with an office in Hackensack, NJ, 75 were admitted before 1984 and 598 after.
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; living registrants only.
Questions this record leads to
- St. John’s University School of Law graduates on the register15,595 living, 88.6% registered.
- New York-admitted attorneys in Hackensack, NJ684 living registrants give an office there.
- Admitted in 19845,952 people admitted in 1984 are on the register, 2,421 of them through the Second Department.
- Every registration that reads “Currently registered”286,911 on the register file of Sep 29, 2026, by decade of admission.
- What a New York lawyer may chargeThe court rules on fees, retainers and fee disputes, each cited.
How to confirm it officially
For a statement of John P. Diiorio’s standing, contact the Attorney Registration Unit of the NY Office of Court Administration (nycourts.gov/attorneys), or ask the Appellate Division, Second Department, which admitted John P. Diiorio in 1984. The register places the office outside New York, so a complaint would go to that department’s grievance committee (22 NYCRR 1240.7(a)(2)).
This page reads the register file of Sep 29, 2026, and the court system’s own search can be newer; the register shows only the current value, so a suspension that ended before the files we hold, or a censure, leaves no trace here (Appellate Division decisions are published through the court system’s Law Reporting Bureau).