New York attorney record · Judicial Dept 3
Jonathan Lewis Klein-Evans
Georgetown Univ Law Ctr alumna, admitted to the New York bar in 1999, registered office in Rockville, MD. 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
- 2993517
- NY reg #
The record in one line
With 27 years on the register since a 1999 admission, Jonathan Lewis Klein-Evans ranks among the New York bar's most senior active practitioners, longer-tenured than 62% of the currently-active bar.
- 27 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #73 of 218
- by tenure in Rockville office peers
- Law school
- Georgetown Univ Law Ctr
Data updated August 2026
What this profile tells you
Bar status & tenure
Registration 2993517 with the New York bar authority has long belonged to Jonathan Lewis Klein-Evans, 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 Meso Scale Diagnostics, LLC, located in Rockville, MD, ZIP 20850. 1 other attorney shares this firm affiliation in the registry. Educational background: GEORGETOWN UNIV LAW CTR.
State context & due diligence
After 27 years on the register, Jonathan Lewis Klein-Evans 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 Jonathan Lewis Klein-Evans's 27 years since admission in 1999.
27 years on the New York bar
Years since admission, all currently-active NY attorneys
27 Top 38% higher than 62% of 290,787 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 · August 2026
Tenure among Rockville, MD office peers
Most of the 218 NY-registered attorneys in Rockville, MD outrank Jonathan Lewis Klein-Evans on tenure; this record sits at the 33rd local percentile (rank #73). See the Rockville attorney directory .
- Local rank
- #73
- City cohort
- 218
- Local percentile
- 33rd
- Admitted
- 1999
Nearest tenure peers in Rockville
- Mary Elizabeth Ayres admitted 1999 · 27 yr
- Anthony Christopher Defelice admitted 1999 · 27 yr
- Bernard Howard admitted 1999 · 27 yr
- Katharine Foster Meyer admitted 1999 · 27 yr
How local rank is computed
Rank uses years since NY-bar admission among non-deceased registry rows that list the same office city and state, a local placement, not a statewide claim. Source: NY Office of Court Administration Attorney Registration · as of August 2026. Derived local rank, not published upstream.
The 1999 admission class today
Of the 7,628 attorneys admitted to the New York bar in 1999, 81.9% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 2993517
- Year Admitted
- 1999 (27 yrs · veteran)
- Judicial Department
- 3
- Next Registration
- Dec 2027
Location & Contact
- Company
- Meso Scale Diagnostics, LLC
- City
- Rockville, MD
- ZIP Code
- 20850
- Phone
- (240) 314-2600
Education
GEORGETOWN UNIV LAW CTR
Status Distribution Across the New York Bar
Jonathan Lewis Klein-Evans's current status, "Currently registered", places this attorney in the 67.2% of the 432,625-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.
Same firm affiliation: Meso Scale Diagnostics, LLC
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
View all attorneys at this firm →Near-tenure Georgetown Univ Law Ctr alumni
Fellow alumni on the NY register whose admission year is closest to 1999 (excluding same-firm colleagues above).
Same admission year (1999), other cities
NY-registered attorneys admitted in 1999 whose listed office city differs from Rockville, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Jonathan Lewis Klein-Evans: closest NY bar admission year outside MD, and closest out-of-state office cities by how many NY-registered attorneys they list (~219 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~1999)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
Verify This Attorney
Verify on NY Courts Attorney SearchNearby Attorneys in Rockville, MD
Compare credentials side-by-side
Compare Jonathan Lewis Klein-Evans with similar attorneys in Rockville.
Compare attorneys →Before you rely on this record
Jonathan Lewis Klein-Evans'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 Jonathan Klein-Evans licensed?
Jonathan Klein-Evans is licensed to practice law in New York.
When was Jonathan Lewis Klein-Evans admitted to the bar?
Jonathan Lewis Klein-Evans's admission to the New York bar dates back to 1999.
Where did Jonathan Lewis Klein-Evans go to law school?
Jonathan Lewis Klein-Evans attended GEORGETOWN UNIV LAW CTR.
What company does Jonathan Lewis Klein-Evans work for?
Jonathan Lewis Klein-Evans is associated with Meso Scale Diagnostics, LLC in Rockville, MD.
Is Jonathan Lewis Klein-Evans in good standing?
Yes, Jonathan Lewis Klein-Evans holds active bar status ("Currently registered").
Cite this page & disclosure
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.