New York attorney record · Judicial Dept 3
Michael Patrick O'Brien
Northwestern Univ alumna, admitted to the New York bar in 1999, registered office in Chicago, IL. Decades of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1999
- Admitted
- 27
- Years in bar
- 2970986
- NY reg #
The record in one line
With 27 years on the register since a 1999 admission, Michael Patrick O'Brien ranks among the New York bar's most senior active practitioners, longer-tenured than 61% of the currently-active bar.
- 27 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 39%
- by tenure among active NY attorneys
- Law school
- Northwestern Univ
Data updated May 2026
What this profile tells you
Bar status & tenure
Registration 2970986 with the New York bar authority has long belonged to Michael Patrick O'Brien, a veteran practitioner still in active good standing. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Sheppard Mullin, located in Chicago, IL, ZIP 60654. 5 other attorneys share this firm affiliation in the registry. Educational background: NORTHWESTERN UNIV (69 registered alumni).
State context & due diligence
After 27 years on the register, Michael Patrick O'Brien still falls within the New York bar's active cohort, a share of the register detailed further below.
Experience vs. the active New York bar
Few active New York attorneys match Michael Patrick O'Brien's 27 years since admission in 1999. The histogram plots that tenure against every currently-active attorney in the state.
27 years on the New York bar
Years since admission, all currently-active NY attorneys
27 Top 39% higher than 61% of 284,296 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
How Michael compares to fellow Northwestern Univ alumni
Among the 59 Northwestern Univ graduates in the New York register, Michael Patrick O'Brien is longer-tenured than 0% - a school-cohort view of experience, alongside the statewide one above.
27 years vs. Northwestern Univ alumni
Years since admission - 59 NY-registered alumni of this school
27 Top 100% higher than 0% of 59 fellow alumni
Each bar is a band; taller bars hold more fellow alumni. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · May 2026
Northwestern Univ's active-bar rate
Of Northwestern Univ's 69 alumni in the New York register, 50.8% currently hold "Currently registered" status, below the statewide average.
Northwestern Univ alumni, active-bar rate
The 1999 admission class today
Of the 7,628 attorneys admitted to the New York bar in 1999, 79.4% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 2970986
- Year Admitted
- 1999 (27 yrs · veteran)
- Judicial Department
- 3
- Next Registration
- Oct 2027
Location & Contact
- Company
- Sheppard Mullin
- City
- Chicago, IL
- ZIP Code
- 60654
- Phone
- (312) 499-6314
Education
Status Distribution Across the New York Bar
Michael Patrick O'Brien's current status, "Currently registered", places this attorney in the 66.2% of the 429,620-attorney New York register currently marked active.
Full statewide breakdown & source note
Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.
Other Attorneys at Sheppard Mullin
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Compare attorneys →Before you rely on this record
Michael Patrick O'Brien's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is Michael O'Brien licensed?
Michael O'Brien is licensed to practice law in New York.
When was Michael Patrick O'Brien admitted to the bar?
Michael Patrick O'Brien's admission to the New York bar dates back to 1999.
Where did Michael Patrick O'Brien go to law school?
Michael Patrick O'Brien attended NORTHWESTERN UNIV.
What company does Michael Patrick O'Brien work for?
Michael Patrick O'Brien is associated with Sheppard Mullin in Chicago, IL.
Is Michael Patrick O'Brien in good standing?
Yes, Michael Patrick O'Brien holds active bar status ("Currently registered").
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.