Derek O Zaba
On the New York attorney register since 2005 · office in Palo Alto, CA
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 4339453
- Admitted
- 2005 · First Department
- Status
- Currently registered
- Next registration
- Jul 2027
Derek O Zaba is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2005 in the First Department, with an office in Palo Alto, CA; next registration due Jul 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 Derek O Zaba has filed the biennial registration the court system requires; the next one is due in Jul 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
799 other attorneys list Sidley Austin LLP or one of its other names as their employer on the register; 169 of them were admitted before 2005. The 5 whose admission is closest to 2005, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Michael Edward Borden | 2005 | Currently registered |
| Linda Hye-Eun Cho | 2005 | Suspended, delinquent |
| Benson Ryan Cohen | 2005 | Currently registered |
| Samuel Jason Comer | 2005 | Currently registered |
| Oren Gertner | 2005 | 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
Derek O Zaba studied at Stanford Law School. 491 of its 2,162 living graduates on the register were admitted in the 2000s, as Derek O Zaba was.
- Same law school
- 2,162living graduates; 88.3% registered (current or due), against 87.1% overall
- Office in Palo Alto, CA
- 393living registrants (outside New York State)
Of the 393 living registrants with an office in Palo Alto, CA, 153 were admitted before 2005 and 232 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 Sidley Austin LLP800 on the register, 169 of the others admitted before 2005.
- Stanford Law School graduates on the register2,162 living, 88.3% registered.
- New York-admitted attorneys in Palo Alto, CA393 living registrants give an office there.
- Admitted in 20058,525 people admitted in 2005 are on the register, 3,154 of them through the First 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 Derek O Zaba’s standing, contact the Attorney Registration Unit of the NY Office of Court Administration (nycourts.gov/attorneys), or ask the Appellate Division, First Department, which admitted Derek O Zaba 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).