Success Story: With Our Assistance, NIW Approved for a Medical Physics Researcher Advancing Radionuclide Production for Nuclear Medicine
Client’s Testimonial:
“I had a great experience working with Chen and Chen’s attorneys. During the preparation of my I-140 petition, they typically responded within one day after I uploaded documents. Whenever I had questions, they replied promptly and explained everything in detail. We were able to submit my I-140 in just three weeks, which was much faster than I expected.
Recently, when I saw that my Date of Filing (DoF) became current, I contacted them to ask about the risks of upgrading to premium processing, as I was concerned that doing premium processing might increase the chance of receiving an RFE. Chen carefully addressed my concerns and even shared their internal statistics, showing that there is no significant difference in RFE rates between regular and premium processing cases. Their professional and data-driven response helped me confidently decide to upgrade to premium processing, and I am very glad that I did. Overall, I am very satisfied to work with the Chen immigration group.”
On February 26th, 2026, we received another EB-2 NIW (National Interest Waiver) approval for a Research Assistant in the Field of Medical Physics (Approval Notice).
General Field: Medical Physics
Position at the Time of Case Filing: Research Assistant
Country of Origin: Taiwan
State of Residence at the Time of Filing: Wisconsin
Approval Notice Date: February 26th, 2026
Processing Time: 14 months, 21 days (Premium Processing Upgrade Requested)
Case Summary:
An EB-2 NIW petition was approved for our client, a medical physics specialist with an M.S. in medical physics whose research is improving how radionuclides and radiolabeled tumor compounds can be produced and applied for imaging and treatment in nuclear medicine. The client is currently conducting research in a U.S. university setting and plans to continue pursuing closely aligned work in medical physics and radiopharmaceutical development.
Research Leadership and National Impact
As an expert in the field of medical physics, the client’s proposed endeavor is to continue developing a solid target method for radionuclide production via particle reactions and generating radiolabeled tumor compounds to improve biological assessment and imaging in nuclear medicine. The endeavor also supports paired radionuclides for treatment and enables multiple isotope production for research centers and universities.
We framed this work as an area of substantial merit and national importance because reliable isotope production and high-quality radiolabeled compounds are foundational to modern diagnostics and targeted therapy. Rather than presenting the endeavor as purely technical, the petition emphasized its practical value for expanding radiopharmaceutical options, improving imaging precision, and supporting a broader pipeline of isotope availability that research and clinical programs rely on.
The client’s scholarly record reflects sustained research activity and early independent uptake:
- 5 peer-reviewed journal articles (1 first-authored) and 4 first-authored abstracts
- 28 citations to the client’s published work, showing that other researchers have relied on the methods and findings
- At least 2 completed peer reviews, reflecting trust in the client’s technical judgment
- Competitive support tied to major funding sources, including a public health agency and a national science and technology council
Citations are persuasive when they indicate independent reliance, especially in technical research where methods must be adopted and validated by others to influence progress. Peer review service, while not the sole basis of the case, further supports recognition because review invitations typically reflect confidence in the reviewer’s expertise.
Expert Endorsements
To strengthen the NIW filing, our firm included 2 expert recommendation letters. These letters corroborated the objective evidence and helped translate specialized radiochemistry and isotope production advances into clear, field-facing significance.
“Undoubtedly, [Client’s] research demonstrates his unique skills and experience in the burgeoning specialized field of theranostic radiopharmaceutical nuclear medicine that is proving to be integral to the advancement of the nation's healthcare system.”
NIW Approval and Outlook
The NIW approval reflects USCIS’s recognition that the client’s proposed endeavor has substantial merit and national importance and that the client is well-positioned to advance it through peer-reviewed publications, independent citation uptake, and recognized expertise supported by research funding and expert testimony. We look forward to the client’s continued contributions to radionuclide production and radiopharmaceutical development that can strengthen imaging, treatment, and research capacity in nuclear medicine across the United States.