Jaeyoung Yoon, MD, PhD
Board-Certified Dermatologist
Fellowship-Trained Mohs Surgeon
4.9 /5
84 reviews
Google Forefront Dermatology
Dr. Yoon is the absolute best doctor I have met to date! He is so personable, honest, and caring. I couldn’t have asked for a better experience! I had a MOHS surgery done on my forehead, I was so nervous about it and he made me feel so comfortable. I can not say enough good things about Dr. Yoon and his staff! I will come back here for sure any other time I need this procedure! Thanks again!
Vitals Forefront Dermatology
i was pleasantly surprised at the friendly attitude of Dr. Yoon and his staff. The surgery was performed with a minimum of discomfort as are the follow-up visits. There is a feeling of harmony in the office that is very comforting to the patients. Highly recommended.
Forefront Dermatology
Process was efficient and timely
Vitals Forefront Dermatology
dr. Yoom and staff very nice, and made me feel very comfortable while having procedure
Forefront Dermatology
Dr. Yoon is the most caring Doctor we have been to.
Forefront Dermatology
This was my second visit at Forefront Dermatology. Dr. Yoon and his staff are intelligent, kind, and knowledgeable. I am completely satisfied with the treatment I receive in the office and would highly recommend this practice to others.
Forefront Dermatology
I always feel good about how I am treated by Dr. Yoon and his group.
Vitals Forefront Dermatology
Dr. Yoon excised a basal cell carcinoma from my back yesterday. He has performed Moh's surgery on my face previously, all with excellent results. I have been a patient of his for over ten years, and have found him to be very competent, compassionate, and personable. J. McGowan
Google Forefront Dermatology
Had two MOHS procedures done for two basal cell tumors. First one went very quickly and smoothly. The second one turned out to be a little more tricky but Dr. Yoon and his staff took very good care of me and things went pretty well. Everything has been healing up nicely with minimal scarring. Was pleased with the whole experience. This will be the place I go if there is a next time.
Google Forefront Dermatology
Dr. Upon Took the time to explain the procedure and alternate choices. Although my procedure was short, it didn’t seem like he was rushing to get to the next patient.

Undergraduate Degree:
Princeton University – Princeton, NJ

Medical Degree:
St. Louis University – St. Louis, MO

Doctorate Degree:
St. Louis University – St. Louis, MO

Dermatology Residency:
Washington University School of Medicine – St. Louis, MO

Mohs Fellowship:
Mayo Clinic – Rochester, MN

American Board of Dermatology
American College of Mohs Surgery
Professional Memberships
American Academy of Dermatology
American Society for Dermatologic Surgery
American College of Mohs Surgery
Selected as a Best Doctor in America 2013 - 2016
Selected Participant, Society of Investigative Dermatology Resident Retreat for Future Physician Scientists, Warrenton
NIH Predoctoral Training Grant
Honors, Departmental Preliminary Exam (written and oral defense of mock NIH grant): “The role of telomerase in cellular immortalization”

J. Yoon, D. Santa Cruz, R. Sengelmann (2001) Enlarging red plaque on the nose of an elderly
woman (angiosarcoma). Archives of Dermatology 138: 831-836.
R. Nagaraja, C. Jermak, M. Trusgnich, J. Yoon, S. MacMillan, B. McCauley, B. Brownstein and D.
Schlessinger (1988) YAC/STS map of 15 Mb of Xp21.3-p11.3, at 100 kb resolution, with refined
comparisons of genetic distances and DMD structure. Gene 215: 259-267.
R. Mazzarella, G. Pengue, J. Yoon, J. Jones, D. Schlessinger (1997) Differential expression and CCG
repeats in the 5’ untranslated region of the XAP-5 gene. Genomics 45: 216-219.
J. Yoon and M.C. Beinfeld (1997) Prohormone convertase 2 is necessary for the formation of
cholecystokinin-22, but not chlecystokinin-8, in Rin5F and STC-1 cells. Endocrinology 138: 3620-3623.
J. Yoon and M.C. Beinfeld (1997) Prohormone convertase 1 is necessary for the formation of
cholecystokinin 8 in Rin5F and STC-1 cells. Journal of Biological Chemistry 14: 9450-9456.
J. Yoon and M.C. Beinfeld (1995) Expression of antisense PC1 in stably transfected Rin5F cells
significantly reduces CCK 8 biosynthesis. Regulatory Peptides 59: 221-227.
J. Yoon and M.C. Beinfeld (1994) A murine intestinal endocrine tumor cell line, STC-1, expresses CCK,
PC1 and PC2 mRNA, processes pro CCK to CCK 8 and displays cAMP regulated release. Endocrine 2:
V. Montanaro, A. Casamassimi, M. D’Urso, J. Yoon, W. Freije, D. Schlessinger, M. Muenke, R.L.
Nussbaum, et. al. (1991) In situ hybridization to cytogenetic bands of yeast artificial chromosomes
covering 50% of human Xq24-Xq28 DNA. American Journal of Human Genetics 48: 183-194.