Meet Our Doctors

Profile Photo of Jaeyoung Yoon, MD, PhD

Jaeyoung Yoon, MD, PhD

Biography

Dr. Yoon, a St. Louis native and "Best Doctor in America" from 2013 to 2016, is a Board-Certified Dermatologist and a Fellowship-Trained Mohs Surgeon. He has performed over 15,000 surgical procedures on skin cancers, including Mohs surgery and excisions. Prior to opening his own practice, he was an assistant professor in the Department of Dermatology at the University of Missouri, Columbia for 2 years.

Education

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
MOH's Fellowship:
Mayo Clinic - Rochester, MN

Certificates

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

Achievements

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"

Publications

  • 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: 973-977.

  • 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.
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Profile Photo of Jaeyoung Yoon, MD, PhD

Jaeyoung Yoon, MD, PhD

Biography

Dr. Yoon, a St. Louis native and "Best Doctor in America" from 2013 to 2016, is a Board-Certified Dermatologist and a Fellowship-Trained Mohs Surgeon. He has performed over 15,000 surgical procedures on skin cancers, including Mohs surgery and excisions. Prior to opening his own practice, he was an assistant professor in the Department of Dermatology at the University of Missouri, Columbia for 2 years.

Education

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
MOH's Fellowship:
Mayo Clinic - Rochester, MN

Certificates

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

Achievements

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"

Publications

  • 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: 973-977.

  • 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.
Profile Photo of Samantha McNail, MD

Samantha McNail, MD

Biography

Dr. McNail is a Board-Certified Dermatologist whose areas of professional interest include skin cancer detection and treatment, psoriasis treatment, including biologics and phototherapy, acne, rosacea, eczema and rashes.

Education

Undergraduate Degree:
University of Missouri - Columbia, MO

Medical Degree:
University of Missouri - Columbia, MO

Internal Medicine Residency:
Emory University, GA

Dermatology Residency:
Ohio State University, OH

Certificates

Board-Certified Dermatologist (American Board of Dermatology)

Professional Memberships

American Academy of Dermatology

Achievements

Alpha Omega Alpha in Medical School
Megee Memorial Scholarship
Curator Medicine Scholarship
Mu Conley Scholar
Alpha Chi Sigma General Chemistry Award
Summa Cum Laude
Phi Eta Sigma
Curators Scholarship
Bright Flight Scholarship
Dean's List
Panhellenic/ Interfraternity Council 4.0 award

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Profile Photo of Samantha McNail, MD

Samantha McNail, MD

Biography

Dr. McNail is a Board-Certified Dermatologist whose areas of professional interest include skin cancer detection and treatment, psoriasis treatment, including biologics and phototherapy, acne, rosacea, eczema and rashes.

Education

Undergraduate Degree:
University of Missouri - Columbia, MO

Medical Degree:
University of Missouri - Columbia, MO

Internal Medicine Residency:
Emory University, GA

Dermatology Residency:
Ohio State University, OH

Certificates

Board-Certified Dermatologist (American Board of Dermatology)

Professional Memberships

American Academy of Dermatology

Achievements

Alpha Omega Alpha in Medical School
Megee Memorial Scholarship
Curator Medicine Scholarship
Mu Conley Scholar
Alpha Chi Sigma General Chemistry Award
Summa Cum Laude
Phi Eta Sigma
Curators Scholarship
Bright Flight Scholarship
Dean's List
Panhellenic/ Interfraternity Council 4.0 award

Profile Photo of Darrell Griffin, MD

Darrell Griffin, MD

Biography

Dr. Darrell Griffin is a board-certified dermatologist, He is a highly experienced doctor, with 38 years of practice in the field. Graduated from the University of Missouri. He specializes in pediatrics but sees patients of all ages.

Education

Undergraduate Degree:
University of Missouri, MO

Medical Degree:
University of Missouri, MO

Residency:
Wright State University - Dayton, OH

Certificates

Board-Certified Dermatologist (American Board of Dermatology)

Professional Memberships

American Academy of Dermatology

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Profile Photo of Darrell Griffin, MD

Darrell Griffin, MD

Biography

Dr. Darrell Griffin is a board-certified dermatologist, He is a highly experienced doctor, with 38 years of practice in the field. Graduated from the University of Missouri. He specializes in pediatrics but sees patients of all ages.

Education

Undergraduate Degree:
University of Missouri, MO

Medical Degree:
University of Missouri, MO

Residency:
Wright State University - Dayton, OH

Certificates

Board-Certified Dermatologist (American Board of Dermatology)

Professional Memberships

American Academy of Dermatology

Profile Photo of Nicolas Uffelmann, MD, FAAD

Nicolas Uffelmann, MD, FAAD

Biography

Dr. Uffelmann is a Board-Certified Dermatologist specializing in the diagnosis and treatment of diseases of the skin, hair and nails. His professional areas of interest include skin cancer detection and treatment, acne, rosacea, eczema and psoriasis. Dr Uffelmann's philosophy is to treat every patient as he would want a family member to be treated.

Education

Undergraduate Degree:
Saint Louis University, St Louis, MO

Medical School:
Saint Louis University School of Medicine

Dermatology Residency:
Southern Illinois University School of Medicine, Dermatology

Certificates and Fellowships

Board-Certified Dermatologist (American Board of Dermatology)

Professional Memberships

American Academy of Dermatology
American Society for Dermatologic Surgery

View Full Bio
Profile Photo of Nicolas Uffelmann, MD, FAAD

Nicolas Uffelmann, MD, FAAD

Biography

Dr. Uffelmann is a Board-Certified Dermatologist specializing in the diagnosis and treatment of diseases of the skin, hair and nails. His professional areas of interest include skin cancer detection and treatment, acne, rosacea, eczema and psoriasis. Dr Uffelmann's philosophy is to treat every patient as he would want a family member to be treated.

Education

Undergraduate Degree:
Saint Louis University, St Louis, MO

Medical School:
Saint Louis University School of Medicine

Dermatology Residency:
Southern Illinois University School of Medicine, Dermatology

Certificates and Fellowships

Board-Certified Dermatologist (American Board of Dermatology)

Professional Memberships

American Academy of Dermatology
American Society for Dermatologic Surgery

Profile Photo of Daniel  Christiansen, MD

Daniel Christiansen, MD

Biography

Dr. Christiansen is a Board-Certified Dermatologist and a fellowship-trained Mohs Micrographic Skin Cancer surgeon. He has completed an intensive training program in skin cancer surgery and advanced facial reconstruction. His professional areas of interest are skin cancer detection/treatment and Mohs micrographic skin cancer surgery. Dr. Christiansen believes that patient-centered care is central to helping patients achieve the best outcomes and that 'one-size-fits-all' does not apply to caring for an individual.

Education

Undergraduate Degree:
Washington University, St. Louis, MO

Medical Degree:
University of Missouri School of Medicine

Residency:
Vanderbilt University Medical Center, Nashville, TN

Mohs Fellowship:
Vanderbilt University Medical Center, Nashville, TN

Certificates

Board-Certified Dermatologist (American Board of Dermatology)
Fellowship-Trained Mohs Surgeon (American College of Mohs Surgery)

Professional Memberships

American Board of Dermatology
American College of Mohs Surgery

View Full Bio
Profile Photo of Daniel  Christiansen, MD

Daniel Christiansen, MD

Biography

Dr. Christiansen is a Board-Certified Dermatologist and a fellowship-trained Mohs Micrographic Skin Cancer surgeon. He has completed an intensive training program in skin cancer surgery and advanced facial reconstruction. His professional areas of interest are skin cancer detection/treatment and Mohs micrographic skin cancer surgery. Dr. Christiansen believes that patient-centered care is central to helping patients achieve the best outcomes and that 'one-size-fits-all' does not apply to caring for an individual.

Education

Undergraduate Degree:
Washington University, St. Louis, MO

Medical Degree:
University of Missouri School of Medicine

Residency:
Vanderbilt University Medical Center, Nashville, TN

Mohs Fellowship:
Vanderbilt University Medical Center, Nashville, TN

Certificates

Board-Certified Dermatologist (American Board of Dermatology)
Fellowship-Trained Mohs Surgeon (American College of Mohs Surgery)

Professional Memberships

American Board of Dermatology
American College of Mohs Surgery

Profile Photo of Amy Thayer, FNP-C

Amy Thayer, FNP-C

Biography

Amy Thayer is a certified Family Practice Nurse Practitioner who specializes in acne treatment, psoriasis treatment, wart treatment and skin cancer detection. She offers high-quality and compassionate care to patients presenting with a wide variety of dermatologic diseases and concerns. Optimizing and excelling in all dermatological procedures, she strives to provide the most advanced care to patients.

Education

Undergraduate Degree:
Southeast Missouri State University, MO

Graduate Degree:
Maryville University, MO

Certificates

Family Nurse Practitioner (American Academy of Nurse Practitioners)

Professional Memberships

Dermatology Nurses Association
American Academy of Nurse Practitioners
St. Louis Nurses in Advanced Practice
Sigma Theta Tau International Nursing Honor Society

Achievements

St. Louis' Best Nurse Finalist 2014

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Profile Photo of Amy Thayer, FNP-C

Amy Thayer, FNP-C

Biography

Amy Thayer is a certified Family Practice Nurse Practitioner who specializes in acne treatment, psoriasis treatment, wart treatment and skin cancer detection. She offers high-quality and compassionate care to patients presenting with a wide variety of dermatologic diseases and concerns. Optimizing and excelling in all dermatological procedures, she strives to provide the most advanced care to patients.

Education

Undergraduate Degree:
Southeast Missouri State University, MO

Graduate Degree:
Maryville University, MO

Certificates

Family Nurse Practitioner (American Academy of Nurse Practitioners)

Professional Memberships

Dermatology Nurses Association
American Academy of Nurse Practitioners
St. Louis Nurses in Advanced Practice
Sigma Theta Tau International Nursing Honor Society

Achievements

St. Louis' Best Nurse Finalist 2014

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