Philip Mengtian Cai
On the New York attorney register since 2023 · office in Palo Alto, CA
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 5963475
- Admitted
- 2023 · Second Department
- Status
-
was Delinquentnow Currently registered - Next registration
- Mar 2027
Philip Mengtian Cai is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2023 in the Second Department, with an office in Palo Alto, CA; next registration due Mar 2027. The Aug 6, 2026 file listed this registration as delinquent.
What this status means on the register
On the register, “Currently registered” means Philip Mengtian Cai has filed the biennial registration the court system requires; the next one is due in Mar 2027.
was Delinquentnow Currently registered changed since the Aug 6, 2026 file- Delinquent unchanged
- Delinquent the first file we hold
A change of standing between the 3 files of the last twelve months is struck through in red; the routine birthday cycle is not.
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
239 other attorneys list Duane Morris LLP or one of its other names as their employer on the register; 212 of them were admitted before 2023. The 5 whose admission is closest to 2023, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Rachael Louise Cain | 2023 | Currently registered |
| Paige Louise Carey | 2023 | Currently registered |
| Isabella Castellon-Lebron | 2023 | Currently registered |
| Martha Kostiuk | 2023 | Currently registered |
| Stephanie Lamerce | 2023 | 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
Philip Mengtian Cai studied at USC Gould School of Law (the register spells it “University of Southern California Gould School of Law”). 329 of its 1,147 living graduates on the register were admitted in the 2020s, as Philip Mengtian Cai was.
- Same law school
- 1,147living graduates; 86.5% 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, 382 were admitted before 2023 and 6 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 Duane Morris LLP240 on the register, 212 of the others admitted before 2023.
- USC Gould School of Law graduates on the register1,147 living, 86.5% registered.
- New York-admitted attorneys in Palo Alto, CA393 living registrants give an office there.
- Admitted in 20238,985 people admitted in 2023 are on the register, 2,666 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 Philip Mengtian Cai’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 Philip Mengtian Cai in 2023. 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).