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Office
170 Parkside Dr
Colorado Springs, CO 80910Phone+1 719-471-1763Fax+1 719-471-2498- Is this information wrong?
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 - 2025
- 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 Dec 1
- 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, Lori A Johnson, Ronald W. Gottschalk> ;Pediatric Dermatology. 2012 Sep 1
- 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, Scott W Caveney, Ronald W Gottschalk> ;Skinmed. 2012 May 1
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Press Mentions
- Colorado Springs Top Doctors 2018October 9th, 2018
- Top Docs 2016October 2nd, 2016
Professional Memberships
- Fellow
Hospital Affiliations
- St. Thomas More HospitalCanon City, Colorado
- AdventHealth Castle RockCastle Rock, Colorado
- UCHealth Memorial HospitalColorado Springs, Colorado
- UCHealth Poudre Valley HospitalFort Collins, Colorado
- University of Colorado HospitalAurora, Colorado
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