Success Stories: Nebraska Service Center Approves EB-1A Petition for Doctor in Colorado in the Field of Epidemiology


Client’s Testimonial:

“Thank you for your great help. I MADE IT!!”

On March 1st, 2016, we received another EB-1A (Alien of Extraordinary Ability) approval for a Doctor in the Field of Epidemiology (Approval Notice).


General Field: Epidemiology

Position at the Time of Case Filing: Doctor

Country of Origin: Taiwan

Service Center: Nebraska Service Center (NSC)

State of Residence at the Time of Filing: Colorado

Approval Notice Date: March 1st, 2016

Processing Time: 8 days (Premium Processing Requested)


Case Summary:

A gifted doctor working in the field of epidemiology hired North America Immigration Law Group ( to help him and his family attain green cards. We initially planned to file both EB-2 NIW (National Interest Waiver) and EB-1A (Alien of Extraordinary Ability) petitions for our client but cancelled the former when his EB-1A petition was approved.

Legal Approach:

We hit the ground running as soon as the contract was signed and returned to us. One of the first things we did was counsel our client to obtain recommendation letters from other influential epidemiologists. Six experts agreed to support our petition, one of whom wrote, “… the progress in our understanding of the associated factors of various diseases and illnesses represented in his research is priceless in terms of medical applications. As an elite member of his field, [Client] has become incredibly important to the continual improvement of medical care in the United States, and the continuation of his work is therefore a matter of national concern. [Client’s] work has benefitted the field as a whole and has therefore benefitted the medical care available to citizens of the United States.”

Besides strong recommendation letters attesting to the value of our client’s work to the United States, we also incorporated the following information into our EB-1A petition packet: the 216 citations gathered from our client’s 22 published journal papers, and the 8 times he conducted peer reviews for scientific periodicals. We also detailed our client’s research efforts on metabolic syndrome and cardiovascular issues.

Premium Processing & Approval Notice:

As our client chose to file his EB-1A petition under Premium Processing (PP), he received an approval notice from Nebraska Service Center 8 days after we filed the case on his behalf. Available only to EB-1 cases, PP is a viable option for petitioners who are unable or unwilling to wait between 4-9 months for the USCIS to adjudicate their case (action must be taken on cases filed under PP within 15 days). We are pleased that our client’s EB-1A case was approved, and we congratulate him on this milestone. Our firm recently filed I-485 applications (final step in the green card process) for our client and his family, and we join them in awaiting a favorable decision from the USCIS.



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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