Success Stories: EB-2 NIW Approval for Physician Advancing Epidemiology Research

Posted by wegreened on October 22, 2025 in NIW, General Medicine (Public Health, Clinical Research, Infectious Diseases, Vaccines, Virology, Epidemiology, Clinical Psychology, Psychiatry)

Client’s Testimonial:

“I am very pleased to hear the good news of my I-140 approval. The fact that it was approved before the 45 business days timeline and without an RFE makes the news even sweeter :)”

On August 16^th, 2025, we received another EB-2 NIW (National Interest Waiver) approval for a Hospitalist Physician in the Field of Epidemiology (Approval Notice).

General Field: Epidemiology

Position at the Time of Case Filing: Hospitalist Physician

Country of Origin: Cameroon

State of Residence at the Time of Filing: Iowa

Approval Notice Date: August 16^th, 2025

Processing Time: 1 month (Premium Processing Requested)

Case Summary:

We at NAILG are pleased to share the approval of an EB-2 NIW (National Interest Waiver) petition for a hospitalist physician from Cameroon, currently engaged in groundbreaking research in the field of epidemiology. The petition was filed with premium processing on July 16, 2025, and approved just one month later, on August 16, 2025.

Case Background

The client approached NAILG with a vision of continuing his dual clinical and research work in the United States, focusing on cardiometabolic diseases and the health consequences of e-cigarette use. At the time of filing, he was employed as a hospitalist physician, while actively contributing to clinical and public health research initiatives.

Research and Impact

NAILG highlighted that the client’s work addresses urgent public health priorities such as:

Advancing strategies for disease prevention and early diagnosis in cardiometabolic conditions.
Developing tools for more precise risk stratification and improved therapeutic outcomes.
Investigating the long-term health risks associated with e-cigarette use, including its impact on bone health.

His research has led to eight peer-reviewed journal articles, three of which he authored as first author, and his findings have accumulated 198 citations in scholarly literature. In addition, he has contributed as a peer reviewer for respected journals, further reinforcing his leadership role in the field. Several of his papers are ranked among the most highly cited in clinical medicine for their publication years, demonstrating both originality and influence.

Expert Endorsements

Letters of recommendation submitted in support of the case underscored his contributions to U.S. public health. One expert summarized his impact by stating:

“[Client’s] research offers substantial benefits to U.S. public health by enhancing the understanding and management of chronic metabolic diseases. His work directly informs preventive care and reduces disparities, particularly among African American populations.”

Another recommender highlighted his influential study on e-cigarettes, noting that it “provides essential evidence that challenges the perception of e-cigarettes as a safe alternative, ensuring healthcare professionals and policymakers are better equipped to protect vulnerable populations.”

Recognition and Support

The petition also emphasized that the client’s research has been funded by major U.S. health institutes, including the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), the National Institute on Aging (NIA), and the **National Heart, Lung, and Blood Institute (NHLBI). Such funding underscores the national importance of his work and validates its potential to improve population health outcomes.

NIW Approval and Outlook

Thanks to NAILG’s tailored legal strategy and careful presentation of evidence, USCIS recognized the substantial merit and national importance of the client’s research, as well as his unique qualifications to advance it. With his NIW approval secured, he is now positioned to expand his epidemiological investigations and continue contributing to evidence-based healthcare that benefits both the U.S. and the global community.

This approval reinforces NAILG’s commitment to supporting talented professionals whose expertise in medicine and public health aligns with critical national interests.

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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 Sixty-four 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

(2012.01 - 2025.12)

Category	Approval or Refund^®		Approval or Refiling^TM
	Approval or Refund^®
Category	Approved Sum	Success Rate	Approved Sum	Success Rate
NIW	42,047	99%	5,258	97%
EB1A	9,218	91%	4,534	86%
EB1B	1,488	98%	448	93%
Total	52,753	98%	10,240	92%