New York attorney record · Judicial Dept 1
David Paul Mattern
Columbia alumna, admitted to the New York bar in 2014, registered office in Washington, DC. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2014
- Admitted
- 12
- Years in bar
- 5228341
- NY reg #
The record in one line
Admitted in 2014, David Paul Mattern has built 12 years of active New York practice - more tenure than 24% of the state's currently-active attorneys.
- 12 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- Top 76%
- by tenure among active NY attorneys
- Law school
- Columbia
Data updated May 2026
What this profile tells you
Bar status & tenure
Bar number 5228341 on the New York register belongs to David Paul Mattern, currently in active standing. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under King & Spalding, located in Washington, DC, ZIP 20006. 5 other attorneys share this firm affiliation in the registry. Educational background: COLUMBIA.
State context & due diligence
David Paul Mattern is currently part of the New York bar's active cohort, a group the breakdown below sizes against the full register.
Experience vs. the active New York bar
12 years into an active New York practice since a 2014 admission, David Paul Mattern sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
12 years on the New York bar
Years since admission, all currently-active NY attorneys
12 Top 76% higher than 24% 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 David compares to fellow Columbia alumni
Among the 2,473 Columbia graduates in the New York register, David Paul Mattern is longer-tenured than 1% - a school-cohort view of experience, alongside the statewide one above.
12 years vs. Columbia alumni
Years since admission - 2,473 NY-registered alumni of this school
12 Top 99% higher than 1% of 2,473 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
The 2014 admission class today
Of the 10,747 attorneys admitted to the New York bar in 2014, 70.2% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5228341
- Year Admitted
- 2014 (12 yrs · mid-career)
- Judicial Department
- 1
- Next Registration
- Aug 2026
Location & Contact
- Company
- King & Spalding
- City
- Washington, DC
- ZIP Code
- 20006
- Phone
- (202) 626-2946
Education
COLUMBIA
Status Distribution Across the New York Bar
David Paul Mattern'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 King & Spalding
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David Paul Mattern'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 David Mattern licensed?
David Mattern is licensed to practice law in New York.
When was David Paul Mattern admitted to the bar?
David Paul Mattern has been on the New York bar register since 2014.
Where did David Paul Mattern go to law school?
David Paul Mattern attended COLUMBIA.
What company does David Paul Mattern work for?
David Paul Mattern is associated with King & Spalding in Washington, DC.
Is David Paul Mattern in good standing?
Yes, David Paul Mattern 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.