Understanding Different Types of Letters of Recommendation (LoRs) for USCE : A guide by IMG Rotations
- Margaret Ye
- Feb 20
- 5 min read
Updated: Feb 22

One of the most critical components of your residency application is the Letter of Recommendation (LoR). A well-written LoR can be the deciding factor in whether you’re invited for an interview and ultimately matched to a U.S. residency program. For International Medical Graduates (IMGs), understanding the various types of LoRs you can submit is crucial for strengthening your application.
In this blog post, we’ll explore the different types of LoRs, including home country LoRs, U.S. Clinical Experience (USCE) LoRs, and research LoRs, as well as the impact of hospital letterhead versus clinic letterhead.
1. Home Country LoRs
What is it?
A home country LoR is a letter written by a physician or mentor from your medical school or clinical experience in your home country. This LoR typically speaks to your clinical skills, work ethic, and character, and it’s an important addition to your application if you don’t have much U.S.-based experience.
Why is it important?
Strong Professional References: Home country LoRs provide valuable insight into your clinical training and performance. Although they are less impactful than U.S.-based LoRs, they still demonstrate your potential and qualifications.
Contextual Relevance: If you’ve worked closely with a respected physician in your home country, their LoR can reflect your strengths and contributions in that context.
Tips for IMGs:
Showcase your clinical skills: Emphasize any advanced procedures or patient care responsibilities that may set you apart from other applicants.
Get LoRs from senior physicians or professors who are familiar with your skills and can speak highly of your potential.
2. U.S. Clinical Experience (USCE) LoRs
What is it?
A USCE LoR is a letter written by a physician in the U.S. who has supervised you during a clinical rotation, observership, or externship. These LoRs are highly valued by residency programs because they speak directly to your ability to function within the U.S. healthcare system.
Why is it important?
Direct Insight into U.S. Medical Practice: U.S. residency programs give great weight to USCE LoRs as they offer direct feedback on your ability to manage patient care, work within a team, and handle the unique challenges of U.S. clinical settings.
More Competitive: Residency programs are more likely to consider your application if you have positive feedback from U.S.-based physicians, especially those in the specialty to which you're applying.
Tips for IMGs:
Seek out clinical rotations in U.S. hospitals or clinics, and focus on gaining hands-on experience.
Build relationships with your U.S. preceptors so they can write a detailed, personalized LoR that speaks to your clinical strengths.
Not all LOR types from an IMG USCE carry the same weight, see below!
Hospital Letterhead vs. Clinic Letterhead types of LOR for IMG USCE
Hospital Letterhead LoRs
A hospital letterhead LoR is one written by a physician affiliated with a U.S. hospital. This type of LoR often carries more weight due to the affiliation with an accredited institution.
Why is it important?
Higher Prestige: Hospital-based LoRs are highly valued because they show that your preceptor is part of an academic or research institution, which adds credibility to the letter. Residency programs recognize the quality of training and exposure that comes from working within a hospital environment.
Respected Authority: A physician working at a U.S. hospital has firsthand experience with the expectations of U.S. medical residency programs and can provide an authoritative recommendation.
Clinic Letterhead LoRs
A clinic letterhead LoR is written by a physician practicing in a private or outpatient setting (non-hospital affiliated). While this type of LoR is still valuable, it’s often viewed as slightly less prestigious than a hospital-based LoR.
Why is it important?
Community Exposure: Clinic LoRs may speak to your ability to work in community health settings or provide care in outpatient environments. This can be particularly valuable for specialties like family medicine, pediatrics, or general practice.
Less Competitive than Hospital LoRs: While still meaningful, a clinic LoR may not carry the same weight as one from a hospital-based physician, especially in highly competitive specialties.
Tips for IMGs:
If possible, aim to get a hospital-based LoR to increase your chances, especially if you’re applying to competitive specialties.
Clinic LoRs are great for demonstrating your ability to work in diverse settings, so don’t discount them, particularly if they come from a well-regarded physician.
3. Research LoRs
What is it?
A research LoR is a letter written by a physician, researcher, or mentor who has supervised you in a research setting. This could be from clinical research, basic science research, or translational research projects that you’ve been involved in.
Why is it important?
Academic Focus: If you’re applying to highly competitive specialties like dermatology, neurology, or radiology, research LoRs can make a significant impact. These specialties often prioritize research experience and publications.
Demonstrates Dedication: Research LoRs highlight your commitment to advancing medical knowledge and your ability to work on scientific projects.
Increased Competitiveness: Many residency programs value applicants who are involved in research, as it demonstrates critical thinking, problem-solving, and the potential to contribute to academic medicine.
Tips for IMGs:
If possible, get involved in research while applying for residency. This will provide valuable LoRs and potentially lead to publications or abstracts that can further bolster your application.
Ensure that the research mentor can speak to your specific contributions and the results of the research project you were involved in.
How IMG Rotations Can Help You with LoRs
At IMG Rotations, we understand the importance of Letters of Recommendation (LoRs) in securing residency interviews and ultimately matching into U.S. residency programs. Here’s how we can help you:
Clinical Rotation Placements: We offer access to U.S. clinical rotations, where you can earn strong USCE LoRs from U.S.-trained physicians.
Research Opportunities: We connect IMGs with research opportunities where you can gain research LoRs to enhance your application.
Personalized Guidance: We provide support to ensure that your LoRs are from reputable physicians and mentors who can vouch for your skills and qualifications.
Get Started with IMG Rotations Today
If you're ready to enhance your residency application with strong Letters of Recommendation, IMG Rotations can help. We connect you with clinical rotations, research experiences, and mentors who can provide detailed, personalized LoRs to increase your chances of matching into your preferred residency program.
Contact us today to learn how we can support your journey to residency success!
Hashtags:#LettersOfRecommendation #LoRs #ResidencyMatch #IMGSuccess #USMLE #ClinicalRotations #ResearchOpportunities #MedicalJourney #IMGHelp #MedicalCareer #ResidencyApplication