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170 S Parkside DrColorado Springs, CO 80910
Phone+1 719-471-1763
Fax+1 719-471-2498
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Education & Training
University of Arizona College of Medicine-TucsonResidency, Dermatology, 1993 - 1996
Yale-New Haven Medical CenterInternship, Internal Medicine, 1992 - 1993
Harvard Medical SchoolClass of 1992
Certifications & Licensure
AZ State Medical License 1994 - Present
CO State Medical License 1996 - 2027
American Board of Dermatology Dermatology
Awards, Honors, & Recognition
- Regional Top Doctor Castle Connolly, 2014
- Fellow (FAAD) American Academy of Dermatology
Clinical Trials
- A Study of BRT-FC-83C for the Treatment of Atopic Dermatitis Start of enrollment: 2009 Jan 01
Publications & Presentations
PubMed
- 3 citationsBlockade of melanin synthesis, activation and distribution pathway by a nonprescription natural regimen is equally effective to a multiple prescription-based therapeut...Carl R Thornfeldt, Ronald L. Rizer, Nathan S Trookman
Journal of Drugs in Dermatology. 2013-12-01 - 19 citationsSafety and Tolerability of a Body Wash and Moisturizer When Applied to Infants and Toddlers with a History of Atopic Dermatitis: Results from an Open‐Label StudyM.C.R. Eric L. Simpson M.D., Nathan S. Trookman, Ronald L. Rizer, Norman Preston, Luz E. Colón
Pediatric Dermatology. 2012-09-01 - 2 citationsA comparison of the tolerability of adapalene 0.1% cream and adapalene 0.1% lotion in healthy individuals.James H. Herndon, Thomas J. Stephens, Nathan S Trookman, Ronald L. Rizer, Norman Preston
Skinmed. 2012-05-01
Press Mentions
Colorado Springs Top Doctors 2018October 9th, 2018- Top Docs 2016October 2nd, 2016
Professional Memberships
- Fellow
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