Matthew Jan Oppenheim
On the New York attorney register since 2005 · office in Washington, DC
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 4314605
- Admitted
- 2005 · Third Department
- Status
- Currently registered
- Next registration
- Feb 2027
Matthew Jan Oppenheim is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2005 in the Third Department, with an office in Washington, DC; next registration due Feb 2027. The status is the same in all 3 files we hold.
What this status means on the register
On the register, “Currently registered” means Matthew Jan Oppenheim has filed the biennial registration the court system requires; the next one is due in Feb 2027.
- 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 “Oppenheim & Zebrak, LLP”. We count that spelling with Oppenheim + Zebrak, LLP, the name most registrants give for the firm now; the register does not say where the attorney works today.
18 other attorneys list Oppenheim + Zebrak, LLP or one of its other names as their employer on the register; 2 of them were admitted before 2005, and 7 of the 19 give an office in Washington, DC. The 5 whose admission is closest to 2005, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Alexander Kaplan | 2001 | Currently registered |
| Corey Michael Sclar Miller | 2011 | Currently registered |
| Andrew Laurence Guerra | 2014 | Currently registered |
| Daryl Lian Kleiman | 2016 | Currently registered |
| Carly Kessler Rothman | 2016 | 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
Matthew Jan Oppenheim studied at Cornell Law School (the register spells it “CORNELL”). 1,467 of its 7,028 living graduates on the register were admitted in the 2000s, as Matthew Jan Oppenheim was.
- Same law school
- 7,028living graduates; 87.8% registered (current or due), against 87.1% overall
- Office in Washington, DC
- 12,527living registrants (outside New York State)
Of the 12,527 living registrants with an office in Washington, DC, 4,322 were admitted before 2005 and 7,850 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
- Everyone who lists Oppenheim + Zebrak, LLP19 on the register, 2 of the others admitted before 2005; 7 of the 19 give an office in Washington, DC.
- Cornell Law School graduates on the register7,028 living, 87.8% registered.
- New York-admitted attorneys in Washington, DC12,527 living registrants give an office there.
- Admitted in 20058,525 people admitted in 2005 are on the register, 2,667 of them through the Third 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 Matthew Jan Oppenheim’s standing, contact the Attorney Registration Unit of the NY Office of Court Administration (nycourts.gov/attorneys), or ask the Appellate Division, Third Department, which admitted Matthew Jan Oppenheim in 2005. 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).