Success Stories: An Epidemiology Research Assistant Gains NIW Approval with NAILG's Assistance

Posted by wegreened on January 30, 2026 in Epidemiology, NIW

Client’s Testimonial:

“Thanks a lot for your guidance throughout the journey of I-140. I am really satisfied working with you.”

On February 28^th, 2025, we received another EB-2 NIW (National Interest Waiver) approval for a Graduate Research Assistant in the Field of Epidemiology (Approval Notice).

General Field: Epidemiology

Position at the Time of Case Filing: Graduate Research Assistant

Country of Origin: Bangladesh

State of Residence at the Time of Filing: Tennessee

Approval Notice Date: February 28^th, 2025

Processing Time: 6 months, 22 days (Premium Processing Requested)

Case Summary:

When a global pandemic revealed how crucial timely, data-driven responses are to public health, one researcher was already ahead of the curve, building the models that would someday help decision-makers see outbreaks coming before they arrived. Trained in epidemiology and equipped with a strong command of quantitative and geospatial analysis, this public health expert has made it his mission to forecast disease risk and guide health policy through advanced modeling techniques.

His work combines spatial data with predictive algorithms to map not only where diseases are, but where they’re going. By identifying geographic disparities, transmission dynamics, and hidden predictors of both chronic and infectious diseases, his models serve as essential tools for state and federal health agencies looking to make interventions more targeted and more effective.

The importance of this work didn’t go unnoticed. Backed by funding from the National Institute of Allergy and Infectious Diseases (NIAID), his research has supported vital public health priorities. He’s also actively engaged with the broader academic community, having completed at least 4 peer reviews and published 11 peer-reviewed journal articles, three of them as first author. His publications have been cited 45 times, further demonstrating his growing influence in the field.

With the support of NAILG, he applied for and secured a National Interest Waiver under the EB-2 category, proving that his contributions to the United States go far beyond academic theory. His tools help public health leaders act faster, allocate resources more fairly, and prevent avoidable loss of life.

As he continues to refine these models and expand their application, his work promises to remain at the forefront of disease forecasting and health equity. NAILG is proud to have played a role in advancing this vital mission.

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North America Immigration Law Group (Chen Immigration Law Associates) is a U.S. immigration law firm dedicated to representing corporations, research institutions, and individuals from all 50 U.S. states regarding I-140 immigration petitions. We specialize in employment-based immigration petition and have a proven record of high success rate for the categories of: EB2-NIW (National Interest Waiver), EB1-A (Alien of Extraordinary Ability), EB1-B (Outstanding Researcher/Professor) and O-1 (Alien of Extraordinary Ability).

Our Ten Thousand I-140 Approvals Provide Unprecedented Insight into the USCIS Adjudication Trend

With nearly 64,000 EB-1A, EB-1B, EB-2 NIW and O-1 cases approved, we have first hand information on the manner in which the USCIS adjudicate I-140 cases. As the USCIS has constantly changed its adjudication standards for the EB-1A, EB-1B and EB-2 NIW categories, our firm's huge database of successful cases gives you unprecedented insight to USCIS adjudication trends. We carefully analyze the data for all of our cases and apply the results of our analyses toward giving our clients up-to-date advice and adapting our strategies such that we remain on par with the ever-shifting landscape of immigration law in the U.S. With us, you will always have access to important updates, strategies, and information so that you can make the most informed decisions about your case.

We Have Helped Tens of Thousands of Clients with Credentials and Backgrounds Similar to Yours

With our exceedingly large number of successful petitions, no matter what credentials you have, no matter your background and field of expertise, no matter your visa status or nationality, chances are we have helped hundreds or even thousands of clients just like you. Our clients are usually impressed with how well we understand their research and work. Our insight and understanding stems from the fact that we have handled many cases with elements similar to yours already, and this helps us devise the best strategies for each individual petition.

Vast Majority of Clients Came to Us Because of Referrals

For years, our firm has attracted new clients based solely on word of mouth, recommendations, and the positive collaboration experiences shared with them by their friends and family. We take pride in our reputation and work hard to ensure that we provide a green card application experience that our clients are happy to share with their friends and colleagues. That is how our cumulative total of approved cases grew from 600 in 2013 to nearly 64,000 in 2025.

Track Record of Success EB-1 and NIW Approvals

(2020.01 - 2024.12)

Category	Approval or Refund^®		Approval or Refiling^TM
Category	Approved Sum	Success Rate	Approved Sum	Success Rate
NIW	28,946	99.52%	3,030	98.31%
EB1A	4,322	91.76%	2,870	88.91%
EB1B	793	98.51%	236	90.77%
Total	34,061	98.44%	6,136	93.39%