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Residency Program

National Resident Matching Program (NRMP) Code:

Internal Medicine: 2445140C0

Accreditation Council for Graduate
Medical Education (ACGME)

ACGME code: 1400500017

ACGME Common Program Requirements

Sung-June Lee, DO

 

Sung-June Lee, DO

Dr. Sung June Lee is an Internal Medicine resident at San Antonio Regional Hospital (SARH), where he joined the residency program in June 2025. He earned his Doctor of Osteopathic Medicine degree from the College of Osteopathic Medicine of the Pacific at Western University of Health Sciences, graduating in May 2025. He previously completed his undergraduate education at the University of California, Berkeley, where he received a B.A. in Integrative Biology.


Dr. Lee has an extensive background in translational and immunology-focused research, with prior appointments at Cedars-Sinai Medical Center and City of Hope. His work has spanned neuro-oncology, immuno-oncology, and hematologic malignancies, leading to multiple peer-reviewed publications. These experiences strengthened his interest in evidence-based medicine and the integration of scientific discovery into clinical care.

Throughout his training, Dr. Lee has remained committed to service and patient-centered care. His clinical and volunteer experiences include work in the emergency department at Good Samaritan Hospital, service with homeless veterans through EPATH, and long-standing involvement in community and faith-based outreach programs. He is drawn to Internal Medicine for its emphasis on diagnostic reasoning, continuity of care, and comprehensive management of complex disease.

Outside of medicine, Dr. Lee enjoys playing guitar, working out, traveling, and unwinding with video games and anime. He values spending quality time with close friends and family and believes maintaining balance outside of work is essential to sustaining compassion, resilience, and excellence in patient care.

 


Sung-June Lee, DO
Meet Our Residents


Hi, my name is Doctor Sung-June Lee, and I went to the Western University.

Interviewer
Doctor. Lee, take us back to the moment in time where you decided I want to become a physician. What factors influenced that journey?

Since childhood, I just knew that, you know, I wanted to become a doctor because I was always loved watching medicine related dramas such as CSIs or anything related to, you know, medicine related documentaries. And I love helping people. I love seeing people getting healthier and being discharged healthier.

Interviewer
How does your family feel about you pursuing this journey in health care?

When my mother first knew that I got into medical school and when she knew that I got into residency program, she became happy about it. I'm the first generation Korean American from South Korea. My whole family is, South Korean. I'm the first one to be become health care professional in our whole, family. So I'm very honored to become a health care professional.

Interviewer
Talk about that physician patient relationship and what you enjoy most about it.

I think I like the most aspect of a physician and the patient relationships. Talking to families and patients, explaining about pathophysiology of what's really going on in the bodies, and making sure that they're also not just, you know, following the care here, but also following up on care post discharge.

Interviewer
Can you tell us about the area of practice you're focusing on and are excited to move forward with upon the the completion of your residency program.

I'm open to many parts of the medicines, such as hospitalist from oncology, allergy, immunology. Basically, I'm open to any aspect of the medicines. I have a background in research in immunology for two years at the City of Hope before getting into medical schools. I'm really happy to be here at the San Antonio Regional Hospital, which is also affiliated with City of Hope. And I'm really grateful that I'm able to work with great oncologists and also hematologists here.

Interviewer
Tell us about your initial experience starting the residency program and how it makes you feel to be a part of the first cohort in the hospital's one hundred and eighteen year history.

It has been really great experience at the San Antonio Regional Hospital. Being the first class of the residency, I'm very privileged to serve these Inland Empire patients.

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