Jaeyoung Yoon, MD, PhD
Board-Certified Dermatologist
Fellowship-Trained Mohs Surgeon
4.8 /5
77 reviews
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
Honest, to the point discussions. Reasonable options offered and discussed. Very professional, understanding, very personable.
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.
Vitals Forefront Dermatology
Exceptional medical treatment. Kind and caring environment. He and his staff strive to make a difficult situation easier to bear. We would recommend him to all, believing that he would always give his best. We are grateful.
Vitals Forefront Dermatology
Took my 93 year old father in law for some nasty skin cancers. He treated him with much kindness and so much respect. His recommendation was based on what was best for him at his advanced age. Couldn’t ask for more personalized, wonderful treatment.
Google Forefront Dermatology
Always Excellent Service! My husband has been a patient of Dr. Yoon's for many years now...even before he was at the North Forty location. We have always, always been satisfied with his work and his staff too. Everything is thoroughly explained and the process to follow afterwards is as well. Dr. Yoon and his staff make a not necessarily good situation very comfortable.
Vitals Forefront Dermatology
I have been to Dr. Yoon about ten times and would never consider going any other doctor. Excellent Doctor . He and his staff are very professional and friendly. Once you choose Dr. Yoon you will never go anywhere else.
Vitals Forefront Dermatology
Other than 2 knee replacements, this is my only surgical experience. It was excellent, on time, painless, and is healing nicely. Thanks.
Google Forefront Dermatology
What a great experience with a bad situation. All staff were amazing!

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.