Success Stories: EB1B Approval in only 17 days for a Postdoctoral Fellow in the field of Biostatistics

Client’s Testimonial:

Thank you very much. We would definitely refer you to our friends.


On September 30, 2013, we received another EB-1B Approval for a Postdoctoral  Fellow in the field of Biostatistics (Approval Notice).


General Field: Biostatistics

Position at the Time of Case Filing: Postdoctoral Fellow

Petitioner: A non-profit research center

Country of Origin: China

Service Center: Texas Service Center (TSC)

State of Residence at the Time of Filing: New York

Approval Notice Date: September 30, 2013

Processing Time: 17 Days (Premium Processing requested)



Case Summary:

At North America Immigration Law Group –, we recently received an EB-1B  approval for a postdoctoral fellow in the field of biostatistics. The beneficiary’s outstanding ability, highly skilled background, and impressive record of achievement provided a strong case for his EB1B petition. His work had focused on the development of novel statistical methods that have wide utility in clinical studies and neuroimaging, as well as in other fields. His research work had resulted in at least 14 peer-reviewed scholarly articles accepted or published in leading international journals and numerous conference posters and presentations. Furthermore, the beneficiary’s publications had been cited at least 50 times by researchers around the world. In addition, he had been invited to review 28 articles submitted to prestigious journals. The petitioner in this case was a non-profit research center. Our beneficiary’s outstanding expertise is summarized in a quote by an independent recommender: “­­­­­There is definitely no doubt that [the client’s] contributions have significantly illuminated the efforts of those of us engaged in statistical methods for prognosis and diagnosis of diseases. He has truly established himself as a pioneer in these research areas.” It was our goal to prove that this beneficiary qualifies for classification as an outstanding professor or researcher given the international recognition for his outstanding achievements. His petition was swiftly approved in just 17 days.


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.

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