New York attorney record · Judicial Dept 2
Ellen Yueh-Ning Cheong
Washington University St. Louis School Of Law alumna, admitted to the New York bar in 2016, registered office in Waltham, MA. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2016
- Admitted
- 10
- Years in bar
- 5408166
- NY reg #
The record in one line
Admitted in 2016, Ellen Yueh-Ning Cheong has built 10 years of active New York practice - more tenure than 25% of the state's currently-active attorneys.
- 10 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #117 of 142
- by tenure in Waltham office peers
- Law school
- Washington University St. Louis School Of Law
Data updated September 2026
What this profile tells you
Bar status & tenure
Bar number 5408166 on the New York register belongs to Ellen Yueh-Ning Cheong, currently in active standing. Registration is recorded within Judicial Department 2, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Repligen Corporation, located in Waltham, MA, ZIP 02453. Educational background: Washington University St. Louis School of Law (909 registered alumni).
State context & due diligence
Ellen Yueh-Ning Cheong 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
10 years into an active New York practice since a 2016 admission, Ellen Yueh-Ning Cheong sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
10 years on the New York bar
Years since admission, all currently-active NY attorneys
10 Top 75% higher than 25% 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 · September 2026
Tenure among Waltham, MA office peers
In Waltham, MA's NY-registered cohort of 142, Ellen Yueh-Ning Cheong sits at local tenure rank #117 (82nd percentile). See the Waltham attorney directory .
- Local rank
- #117
- City cohort
- 142
- Local percentile
- 82nd
- Admitted
- 2016
Nearest tenure peers in Waltham
- Erin Grace Gallery Carroll admitted 2016 · 10 yr
- Aarthi Balasubramanian Iyer admitted 2016 · 10 yr
- Cong Yao admitted 2016 · 10 yr
- Taimoor Jawed Choudhry admitted 2015 · 11 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 September 2026. Derived local rank, not published upstream.
How Ellen compares to fellow Washington University St. Louis School Of Law alumni
Among the 854 Washington University St. Louis School Of Law graduates in the New York register, Ellen Yueh-Ning Cheong is longer-tenured than 66%.
10 years vs. Washington University St. Louis School Of Law alumni
Years since admission - 854 NY-registered alumni of this school
10 Top 34% higher than 66% of 854 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 · September 2026
Washington University St. Louis School Of Law's active-bar rate
Of Washington University St. Louis School Of Law's 909 alumni in the New York register, 85.4% currently hold "Currently registered" status, above the statewide average.
The 2016 admission class today
Of the 8,420 attorneys admitted to the New York bar in 2016, 72.9% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5408166
- Year Admitted
- 2016 (10 yrs · mid-career)
- Judicial Department
- 2
- Next Registration
- May 2028
Location & Contact
- Company
- Repligen Corporation
- City
- Waltham, MA
- ZIP Code
- 02453
- Phone
- (781) 250-0111
Status Distribution Across the New York Bar
Ellen Yueh-Ning Cheong'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.
Near-tenure Washington University St. Louis School Of Law alumni
Fellow alumni on the NY register whose admission year is closest to 2016 (excluding same-firm colleagues above).
Same admission year (2016), other cities
NY-registered attorneys admitted in 2016 whose listed office city differs from Waltham, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Ellen Yueh-Ning Cheong: closest NY bar admission year outside MA, and closest out-of-state office cities by how many NY-registered attorneys they list (~143 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2016)
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 Waltham, MA
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Compare attorneys →Before you rely on this record
Ellen Yueh-Ning Cheong'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 Ellen Cheong licensed?
Ellen Cheong is licensed to practice law in New York.
When was Ellen Yueh-Ning Cheong admitted to the bar?
Ellen Yueh-Ning Cheong has been on the New York bar register since 2016.
Where did Ellen Yueh-Ning Cheong go to law school?
Ellen Yueh-Ning Cheong attended Washington University St. Louis School of Law.
What company does Ellen Yueh-Ning Cheong work for?
Ellen Yueh-Ning Cheong is associated with Repligen Corporation in Waltham, MA.
Is Ellen Yueh-Ning Cheong in good standing?
Yes, Ellen Yueh-Ning Cheong 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.