Success Stories: EB-1A and NIW Petitions Approved for Senior Biostatistician from China in the Field of Cancer Epidemiology


Client’s Testimonial:

“Thank you very much for the good news!”

On December 10th, 2015 and March 1st, 2016, we received another EB-1A (Alien of Extraordinary Ability) and EB-2 NIW (National Interest Waiver) approval for a Senior Biostatistician in the Field of Cancer Epidemiology (Approval Notice).

General Field: Cancer Epidemiology

Position at the Time of Case Filing: Senior Biostatistician

Country of Origin: China

Service Center: Texas Service Center (TSC)

State of Residence at the Time of Filing: Texas

Approval Notice Date: December 10th, 2015 (EB-1A) and March 1st, 2016 (EB-2 NIW)

Processing Time: 8 Days (EB-1A) and 2 months, 27 days (EB-2 NIW)


Case Summary:

A prominent senior biostatistician from China working in the field of cancer epidemiology hired North America Immigration Law Group ( to file two I-140 petitions on her behalf: EB-2 NIW (National Interest Waiver) and EB-1A (Alien of Extraordinary Ability). It is not unusual for clients to file two petitions simultaneously as it increases their chances of getting an approval. Say if one petition is denied, there is still a chance that the other may be approved. In this particular case, both of our client’s petitions were approved.

How We Approached the Case:

Our legal team is skilled at filing both EB-2 NIW and EB-1A cases and had no problems preparing two petition packets. Here are where the similarities lay:

  • Citation and Publication Record

When we filed the petitions, our client’s 17 published scientific papers had collected nearly 100 citations.

  • Recommendation Letters

In preparing the petitions, we prompted our client to contact other expert cancer epidemiologists to lend their support. She managed to convince six experts to furnish us with recommendation letters, one of whom wrote, “[Client’s] studies provide the cornerstone for current and ongoing scientific inquiry. Based on [Client’s] demonstrated value to American medicine, halting her work would be detrimental to medical research throughout the country.” Another expert stated, “In conclusion, [Client’s] ongoing research in the United States will not only continue to strengthen scientific study, but will continue to progress medical care and the health care industry for the betterment of our country.”

  • Research Efforts

Part of our legal services involved carefully reviewing and detailing our client’s various research exploits on cancer biology and genetic epidemiology. We established that her findings directly impact the United States medical research community and healthcare system.

Our EB1A and NIW petitions also detailed out client’s peer review experience and chronicled her two master’s degrees and her Ph.D. in Biostatistics. Overall, both petitions proved that our client’s work is of extreme importance to the United States and that only a scant handful of researchers with similar qualifications can attain the same level of success.

We would like to congratulate our client for obtaining two approval notices, and we wish her well as she attempts the final leg of the green card journey: the I-485 application.



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 more than 16,000 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 Hundreds and 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 approved cases grew from 600 in 2013 to over 3,500 in 2019.

If you are interested in filing the green card, please send your CV to for our free evaluation. Our attorneys will email you back with the evaluation result within 24 hours.

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