PlainAttorney Register file of Sep 29, 2026 · NY Office of Court Administration, via data.ny.gov

Alan M. Klein

On the New York attorney register since 1986 · office in New York, NY

PlainAttorney’s reading of the public register file, not a court record.

Registration No.
2050128
Admitted
1986 · First Department
Status
Currently registered
Next registration
Dec 2026

Alan M. Klein is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 1986 in the First Department, with an office in New York, NY; next registration due Dec 2026. The status is the same in all 3 files we hold.

What this status means on the register

On the register, “Currently registered” means Alan M. Klein has filed the biennial registration the court system requires; the next one is due in Dec 2026.

  1. Currently registered unchanged
  2. Currently registered unchanged
  3. 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

1,307 other attorneys list Simpson Thacher & Bartlett LLP or one of its other names as their employer on the register; 36 of them were admitted before 1986, and 1,049 of the 1,308 give an office in New York, NY. The 5 whose admission is closest to 1986, earliest first:

AttorneyAdmittedStatus
Thomas H. Bell1985Currently registered
Mark Jeffrey Stein1985Currently registered
Peter Coyne Thomas1985Currently registered
John J. Creed1986Currently registered
Michael Raymond Isby1987Currently registered

All 1,308 registrations that list Simpson Thacher & Bartlett 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

Alan M. Klein studied at Harvard Law School (the register spells it “HARVARD”). 1,661 of its 14,378 living graduates on the register were admitted in the 1980s, as Alan M. Klein was.

Same law school
14,378living graduates; 86.1% registered (current or due), against 87.1% overall
Office in New York, NY
93,604living registrants

Of the 93,604 living registrants with an office in New York, NY, 9,861 were admitted before 1986 and 82,760 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

  1. Everyone who lists Simpson Thacher & Bartlett LLP1,308 on the register, 36 of the others admitted before 1986; 1,049 of the 1,308 give an office in New York, NY.
  2. Harvard Law School graduates on the register14,378 living, 86.1% registered; 104 of them list Simpson Thacher & Bartlett LLP.
  3. Attorneys with an office in New York, NY93,604 living registrants give an office there.
  4. New York County’s registered bar75,989 currently registered, 46.63 per 1,000 residents.
  5. Admitted in 19866,111 people admitted in 1986 are on the register, 1,967 of them through the First Department.
  6. Every registration that reads “Currently registered”286,911 on the register file of Sep 29, 2026, by decade of admission.
  7. 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 Alan M. Klein’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 Alan M. Klein in 1986. A complaint about this attorney would go to the First Department’s grievance committee, which covers New York County, where the register places the office.

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).

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