Success Story: From Cardiac Research to NIW Approval After RFE
Client’s Testimonial:
“Chen Immigration was very skillful in addressing my I-140 RFE. This was a very stressful process, however their legal response was very detailed and comprehensive. I am really glad I had this level of in-depth support with this process.”
On September 5th, 2026, we received another EB-2 NIW (National Interest Waiver) approval for a Cardiology Fellow in the Field of Clinical Epidemiology (Approval Notice).
General Field: Clinical Epidemiology
Position at the Time of Case Filing: Cardiology Fellow
Country of Origin: Ireland
State of Residence at the Time of Filing: Minnesota
Approval Notice Date: September 5th, 2026
Processing Time: 7 months, 15 days (Premium Processing Upgrade Requested)
Case Summary:
North America Immigration Law Group (NAILG) represented a clinical epidemiology researcher from Ireland whose work focuses on improving cardiac treatment safety, identifying adverse outcomes, and supporting better prediction and prevention of treatment-related risks.
The client held an M.S. in epidemiology and had built specialized expertise in clinical research, cardiovascular outcomes, medication safety, predictive modeling, and data-driven approaches to patient care. At the time of filing, the client was employed as a cardiology fellow at a U.S.-based medical institution, where the client continued research related to cardiac treatment outcomes and patient safety. The proposed endeavor aimed to help improve cardiac care by identifying treatment-related risks and supporting more effective approaches to preventing adverse events.
The petition documented a strong record of research achievement:
- 12 peer-reviewed journal articles, including 5 first-authored articles, 12 abstracts, including 6 first-authored abstracts, and 1 letter to the editor
- 83 citations to the client’s published work
- At least 2 completed peer reviews
The petition included 4 recommendation letters, two of which were independent advisory opinions from experts who evaluated the significance of the client’s research, contributions, and potential to advance the proposed endeavor in the national interest. One expert noted:
“Thus, [Client's] record of achievement to date more than evidences the indispensability of his research to the United States.”
NAILG also highlighted the reliance on the client’s findings by independent researchers. Later studies used the client’s work to support research involving medication safety, cardiac imaging, data-driven clinical assessment, cardiovascular risk prediction, and adverse outcomes in cardiac patients. This evidence helped show that the client’s research had practical value beyond publication and contributed to broader efforts to improve patient safety and cardiac care.
After USCIS issued a Request for Evidence, the response reinforced the connection between the client’s advanced training, current cardiology role, publication record, citation impact, peer-review service, expert recommendation letters, and future research plans. By presenting the client’s work as a focused clinical epidemiology endeavor with broader relevance to cardiovascular patient outcomes, NAILG demonstrated that the client was well positioned to continue advancing research of national importance.
This approval reflected the successful presentation of a clinical epidemiology case grounded in publication impact, independent reliance, peer-review recognition, expert support, and a proposed endeavor aimed at improving cardiac treatment safety and patient outcomes in the United States.

