New York attorney record · Judicial Dept 1
Michael Christopher Arsiotis
University Of Pennsylvania Law School alumna, admitted to the New York bar in 2016, registered office in New York, NY. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2016
- Admitted
- 10
- Years in bar
- 5412580
- NY reg #
The record in one line
Michael Christopher Arsiotis appears in the New York attorney register with a current status of "Due to reregister within 30 days of birthday", on record since 2016 - an administrative designation rather than discipline, but confirm current standing with the state bar.
- 10 yrs
- since first admission to the bar
- Pending-renewal
- current bar status: "Due to reregister within 30 days of birthday"
- Law school
- University Of Pennsylvania Law School
Data updated May 2026
What this profile tells you
Bar status & tenure
Michael Christopher Arsiotis is registered as bar number 5412580 with the New York bar authority, carrying a current status of "Due to reregister within 30 days of birthday", a routine periodic-renewal reminder, not discipline. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Simpson Thacher & Bartlett LLP, located in New York, NY (New York County), ZIP 10017. 5 other attorneys share this firm affiliation in the registry. Educational background: University of Pennsylvania Law School (1,880 registered alumni).
State context & due diligence
A "Due to reregister within 30 days of birthday" status falls outside the New York bar's active cohort for now. The breakdown below shows what share of the register that represents.
How Michael compares to fellow University Of Pennsylvania Law School alumni
Among the 1,518 University Of Pennsylvania Law School graduates in the New York register, Michael Christopher Arsiotis is longer-tenured than 47% - a school-cohort view of experience, alongside the statewide one above.
10 years vs. University Of Pennsylvania Law School alumni
Years since admission - 1,518 NY-registered alumni of this school
10 Top 53% higher than 47% of 1,518 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
University Of Pennsylvania Law School's active-bar rate
Of University Of Pennsylvania Law School's 1,880 alumni in the New York register, 77.9% currently hold "Currently registered" status, above the statewide average.
University Of Pennsylvania Law School alumni, active-bar rate
The 2016 admission class today
Of the 8,420 attorneys admitted to the New York bar in 2016, 72.1% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Due to reregister within 30 days of birthday
- Registration Number
- 5412580
- Year Admitted
- 2016 (10 yrs · mid-career)
- Judicial Department
- 1
- Next Registration
- Mar 2026
Location & Contact
- Company
- Simpson Thacher & Bartlett LLP
- City
- New York, NY
- County
- New York
- ZIP Code
- 10017
- Phone
- (917) 887-4177
Education
Status Distribution Across the New York Bar
Michael Christopher Arsiotis's current status, "Due to reregister within 30 days of birthday", places this record outside 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.
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Michael Christopher Arsiotis is currently listed as "Due to reregister within 30 days of birthday", treat that as a registration fact to confirm, not a verdict on quality.
Frequently Asked Questions
Where is Michael Arsiotis licensed?
Michael Arsiotis is licensed to practice law in New York.
When was Michael Christopher Arsiotis admitted to the bar?
Michael Christopher Arsiotis has been on the New York bar register since 2016.
Where did Michael Christopher Arsiotis go to law school?
Michael Christopher Arsiotis attended University of Pennsylvania Law School.
What company does Michael Christopher Arsiotis work for?
Michael Christopher Arsiotis is associated with Simpson Thacher & Bartlett LLP in New York, NY.
Is Michael Christopher Arsiotis in good standing?
Not currently, Michael Christopher Arsiotis's listed status is "Due to reregister within 30 days of birthday", not active standing. Confirm current status with the state bar.
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.