Katherine Aiko Oyama
On the New York attorney register since 2007 · office in Washington, DC
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 4498101
- Admitted
- 2007 · First Department
- Status
- Suspended, delinquent
- Next registration
- Nov 2027
Katherine Aiko Oyama is suspended, delinquent on the New York attorney register file of Sep 29, 2026. Admitted in 2007 in the First Department, with an office in Washington, DC; next registration due Nov 2027. The status is the same in all 3 files we hold.
What this status means on the register
On the register, “Suspended, delinquent” means the attorney is recorded as suspended from practice, with the registration also delinquent. The register does not give the reason or date of a suspension; the Appellate Division’s order does.
- Suspended, delinquent unchanged
- Suspended, delinquent unchanged
- Suspended, delinquent 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
193 other attorneys list Wilmer Cutler Pickering Hale and Dorr LLP or one of its other names as their employer on the register; 53 of them were admitted before 2007, and 44 of the 194 give an office in Washington, DC. The 5 whose admission is closest to 2007, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Eric Levine | 2007 | Currently registered |
| Kevin Scott Prussia | 2007 | Currently registered |
| Alan Evan Schoenfeld | 2007 | Currently registered |
| Andrew Rich Bonnes | 2008 | Currently registered |
| Christopher Bouchoux | 2008 | Due to re‑register |
All 194 registrations that list Wilmer Cutler Pickering Hale and Dorr LLP
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
Katherine Aiko Oyama studied at University of California, Berkeley, School of Law (the register spells it “UC BERKELEY”). 451 of its 2,382 living graduates on the register were admitted in the 2000s, as Katherine Aiko Oyama was.
- Same law school
- 2,382living graduates; 87.5% 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, 5,038 were admitted before 2007 and 7,108 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 Wilmer Cutler Pickering Hale and Dorr LLP194 on the register, 53 of the others admitted before 2007; 44 of the 194 give an office in Washington, DC.
- University of California, Berkeley, School of Law graduates on the register2,382 living, 87.5% registered.
- New York-admitted attorneys in Washington, DC12,527 living registrants give an office there.
- Admitted in 20078,913 people admitted in 2007 are on the register, 3,181 of them through the First Department.
- Every registration that reads “Suspended, delinquent”20,229 on the register file of Sep 29, 2026, by decade of admission.
- How to complain about a New York lawyerThe grievance committee for each county, and what it can do.
How to confirm it officially
For a statement of Katherine Aiko Oyama’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 Katherine Aiko Oyama in 2007. 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).