Peggy A. Wu, M.D., M.P.H., F.A.A.D.
Professor of Clinical Dermatology
Philosophy of Care
Throughout my career, I have focused on promoting clinical excellence by providing informed, comprehensive clinical care and pursuing research guided by clinical need.
My philosophy of compassionate care centers on building a true partnership with each patient. I leverage my insights, knowledge, experience and academic connections to work closely with patients in finding the care that best supports their individual needs.
Dr. Wu is a medical dermatologist with particular clinical and research interests in medical education, allergic contact dermatitis, cutaneous lymphoma and complex medical dermatology. She is the founder and director of the patch test clinic at UC Davis Health.
Research and Academic Interests
Dr. Wu's research interests include establishing clinically significant outcome metrics for patients with dermatitis undergoing patch testing. She also has an interest in the epidemiology of non-melanoma skin cancer, the effectiveness of interventions for cutaneous T cell lymphoma and medical education.
Education
Stanford University, School of Medicine, Palo Alto, CA — 2006
Harvard University, School of Public Health, Boston, MA — 2014
Internship: Transitional Medicine, Santa Clara Valley Medical Center, Santa Clara, CA — 2006-2007
Residency: Dermatology, Washington University in St. Louis, St. Louis, MO — 2007-2010
Board Certification: American Board of Dermatology — 2010
Professional Memberships
American Medical Association
American Academy of Dermatology
American Academy of Dermatology Patient Advocacy Task Force — 2013-2017
American Academy of Dermatology Skin Cancer Transplant Network — 2014-2018
American Academy of Dermatology Enduring Materials Committee — 2015-2018
American Academy of Dermatology Clinical Guidelines Committee — 2018-2023, Chair 2021-2023
Women's Dermatologic Society
Medical Dermatology Society
National Comprehensive Cancer Network — 2022-Current
North American Contact Dermatitis Group — 2023-Current
New England Dermatological Society — 2010-2018
New England Dermatological Society Meeting Planning Committee and Moderator — 2013
United States Cutaneous Lymphoma Consortium Member
United States Cutaneous Lymphoma Consortium Education Committee — 2011-2014
American Contact Dermatitis Society
American Contact Dermatitis Society Membership Committee — 2011-2016, Chair 2015-2016
American Contact Dermatitis Society Annual Meeting Committee — 2016-2018, Chair 2018-2019
International Transplant Skin Cancer Collaborative
Honors and Awards
2025 Top Doctors, Sacramento Magazine
2025 Diamond Doctors, University of California, Davis
2024 Top Doctors, Sacramento Magazine
2024 Diamond Doctors, University of California, Davis
2023 Top Doctors, Sacramento Magazine
2023 Advanced Leadership Program, American Academy of Dermatology
2023 Diamond Doctors, University of California, Davis
2022 Diversity Mentorship Award (mentor), American Academy of Dermatology
2022 Diversity, Equity, Inclusion and Healthcare Disparities Award ($5,000 funding support), American Contact Dermatitis Society
2022 Top Doctors, Sacramento Magazine
2021 Research Seed Grant ($25,000 funding support), University of California, Davis, Department of Dermatology
2021 Presidential Citation, American Contact Dermatitis Society
2020 Top Doctors, Sacramento Magazine
2020 Faculty Leadership Academy, University of California, Davis
2019 Mentorship Award (mentor), American Contact Dermatitis Society
2019 Presidential Citation, American Contact Dermatitis Society
2018 Presidential Citation, American Academy of Dermatology
2016 Cochrane Scholarship Award, American Academy of Dermatology, 2011
2016 Research Award, Women's Dermatologic Society
2014 Harvard Medical School Dermatology Teaching Award, Harvard Combined Dermatology Resident Training Program
2013 Alfred E. Kopf Grant, Skin Cancer Foundation
2012-2013 Editorial Mentorship Program (selected mentee), Journal of the American Academy of Dermatology
2011-2012 Academic Dermatology Leadership Program (selected mentee), American Academy of Dermatology
2011 American Contact Dermatology Society Mentorship Award
2009 Women’s Dermatologic Society Mentorship Award
2004 Stanford Medical Scholars Award
2001 Stanford Medical Scholars Award
Selected Recent Peer-Reviewed Publications
2025 Davis DMR, Frazer-Green L, Alikhan A, Bercovitch L, Cohen DE, Darr JM, Drucker AM, Eichenfield LF, Paller AS, Schwarzenberger K, Silverberg JI, Singh AM, Wu PA, Sidbury R. Focused update: Guidelines of care for the management of atopic dermatitis in adults. J Am Acad Dermatol. 93(3):745.
2025 Okeke CAV, Ponzini M, Sullivan SD, Hastings LW, Keller O, Wu PA. A Cross-Specialty Matched Comparison: Non-Dermatologists More Likely to Diagnose Dermatitis in Skin of Color Patients. Dermatitis.
2025 Sandler M, Adler BL, Atwater AR, Belsito DV, Botto NC, DeKoven JG, DeLeo VA, Dunnick CA, Fowler JF Jr, Houle MC, Maibach HI, Mowad CM, Reeder MJ, Taylor JS, Warshaw EM, Wu PA, Zippin JH, Yu J. Updated expert opinion guidelines regarding the effects of immunosuppressive agents on patch testing. J Am Acad Dermatol. S0190-9622(25)00166-5.
2025 Wu PA, Wu J, Liu R, Sullivan S, Keller O, Caro-Chang L, Pemba Y, Fung MA. Epidermal spongiotic Langerhans cell collections, but not eosinophils, are a clue to the diagnosis of allergic contact dermatitis: A series of 170 clinically- and patch test-confirmed cases. J Am Acad Dermatol. 92(4):853-860.
2024 Okeke CAV, Seltzer JA, De Guzman CB, Tran JH, Okoye GA, Byrd AS, Wu PA. Allergen content of popular chemical hair relaxers: A product analysis. Contact Dermatitis. 91(2):139-145.
2024 Reynolds RV, Yeung H, Cheng CE, Cook-Bolden F, Desai SR, Druby KM, Freeman EE, Keri JE, Stein Gold LF, Tan JKL, Tollefson MM, Weiss JS, Wu PA, Zaenglein AL, Han JM, Barbieri JS. Guidelines of care for the management of acne vulgaris. J Am Acad Dermatol. S0190-9622(23)03389-3.
2024 Davis DMR, Drucker AM, Alikhan A, Bercovitch L, Cohen DE, Darr JM, Eichenfield LF, Frazer-Green L, Paller AS, Schwarzenberger K, Silverberg JI, Singh AM, Wu PA, Sidbury R. Guidelines of care for the management of atopic dermatitis in adults with phototherapy and systemic therapies. J Am Acad Dermatol. 90(2):e43-e56.
2023 Shawa H, Wu PA, Dahle S, Isseroff RR, Sood A. Potential Allergens in Wound Care Products. Dermatitis. 34(1):51-55.
2023 Sidbury R, Alikhan A, Bercovitch L, Cohen DE, Darr JM, Drucker AM, Eichenfield LF, Frazer-Green L, Paller AS, Schwarzenberger K, Silverberg JI, Singh AM, Wu PA, Davis DMR. Guidelines of care for the management of atopic dermatitis in adults with topical therapies. J Am Acad Dermatol. 89(1):e1-e20.
2022 Kim-Lim P, Wennberg E, Van Noord M, Hastings LW, Sullivan SD, Huang V, Wu PA. Systematic review of systemic corticosteroid effects on patch testing. Dermatitis. 01;33(6):405-410.
2022 Kohn Kucharik A, Sivesind TE, Schmitt J, Weberschock T, Wu P, Masood M, Dellavalle RP. From the Cochrane Library: Interventions for Mycosis Fungoides. JMIR Dermatol. 5(3):e34448.
2022 Eisen DB, Dellavalle RP, Frazer-Green L, Schlesinger TE, Shive M, Wu PA. Focused update: Guidelines of care for the management of actinic keratosis. J Am Acad Dermatol. 87(2):373-374. e5.
2022 Okeke CAV, Malik AM, Atwater AR, Powell DL, Czajkowski G, Castanedo-Tardan MP, Montanez-Wiscovich M, Wu PA; Members of the American Contact Dermatitis Society Diversity, Equity, Inclusion and Healthcare Disparities Committee. American Contact Dermatitis Society Position Statement: Dermatitis and Skin of Color. Dermatitis. 33(1):3-9.
2021 Desai SR, Khanna R, Glass D, Alam M, Barrio V, French LE, Gohara M, McKinley-Grant L, Harvey V, Heath C, Mariwalla K, Pentland A, Piliang M, Pourciau C, Taylor S, Wu P, Grimes P, Lim HW. Embracing diversity in dermatology: Creation of a culture of equity and inclusion in dermatology. Int J Womens Dermatol. 7(4):378-382.
2021 Liakos W, Toussi A, Le ST, Ma C, Merleev A, Marusina AI, Luxardi G, Konia TH, Sood A, Wu PA, Maverakis E. Anti-Interleukin 23-Based Therapies May Shift Cutaneous Immune Responses: A Case of New-Onset Contact Dermatitis to Carbamates After Guselkumab for Psoriasis. Dermatitis.
2021 Eisen DB, Asgari MM, Bennett DD, Connolly SM, Dellavalle RP, Freeman EE, Goldenberg G, Leffell DJ, Peschin S, Sligh JE, Wu PA, Frazer-Green L, Malik S, Schlesinger TE. Guidelines of care for the management of actinic keratosis. J Am Acad Dermatol. S0190-9622(21)00502-8.
2021 Eisen DB, Asgari MM, Bennett DD, Connolly SM, Dellavalle RP, Freeman EE, Goldenberg G, Leffell DJ, Peschin S, Sligh JE, Wu PA, Frazer-Green L, Malik S, Schlesinger TE. Guidelines of Care for the Management of Actinic Keratosis: Executive Summary. J Am Acad Dermatol. S0190-9622(21)01097-5.
2021 Liu KX*, Huang V, Chen CA, Elco CP, Chen ST, Stern RS, Wu PA. Longitudinal multicenter retrospective cohort study of treatment outcomes in extramammary Paget's disease. Br J Dermatol.
2021 Wennberg E*, Richards PQ, Bain, PA, Huang V, Sullivan SD, Mverakis EM, Molina GE, Wu PA. Topical treatments for early-stage mycosis fungoides using Grading Recommendations Assessment, Development and Evaluation (GRADE) criteria: A systematic review. JAAD International Vol 3
2021 Yu J, Chen JK, Mowad CM, Reeder M, Hylwa S, Chisolm S, Dunnick CA, Goldminz AM, Jacob SE, Wu PA, Zippin J, Atwater AR. Occupational dermatitis to facial personal protective equipment in health care workers: A systematic review. J Am Acad Dermatol. 84(2)486-494.
2020 Yu J, Goldminz A, Chisolm S, Jacob SE, Zippin JH, Wu PA, Hylwa S, Dunnick CA, Chen JK, Reeder M, Honari G, Atwater AR. Facial Personal Protective Equipment: Materials, Resterilization Methods, and Management of Occupation-Related Dermatoses. Dermatitis.
2020 Valipour A, Jäger M, Wu P, Schmitt J, Bunch C, Weberschock T. Interventions for mycosis fungoides. Cochrane Database Syst Rev. 7(7):CD008946.
2019 Raffi J**, Taylor JS, Atwater AR, Jacob SE, Brod BA, Scheman AJ, Froelich C, Morales D, Czajkowski G, Wu PA. Another Candle on the Cake. Dermatitis. 30(6):e15-e24
2019 Wu PA, Stern RS, Huang V, Liu KX*, Chen CA**, Tzachanis D, Joyce RM, Davis RB, Ho VT. Reduced-Intensity Conditioning Regimens, Prior Chronic Lymphocytic Leukemia, and Graft-Versus-Host Disease Are Associated with Higher Rates of Skin Cancer after Allogeneic Hematopoietic Stem Cell Transplantation. J Invest Dermatol. 139(3):591-599
2019 Molina GE**, Khalifian S, Mull JL, Chen L, Rosman IS, Faulkner-Jones BE, Ngo KH, Demehri S, Cornelius LA, Wu PA. Topical Combination of Fluorouracil and Calcipotriene as a Palliative Therapy for Refractory Extramammary Paget Disease. JAMA Dermatol. 155(5):599-603
2019 Xia FD**, Ferket BS, Huang V, Stern RS, Wu PA. Local radiation most cost-effective for stage IA mycosis fungoides: a comparative cost-effectiveness model. J Am Acad Dermatol. 80(2):485-492.e4
2017 Garrett GL, Blanc PD, Boscardin J, Lloyd AA, Ahmed RL, Anthony T, Bibee K, Breithaupt A, Cannon J, Chen A, Cheng JY, Chiesa-Fuxench Z, Colegio OR, Curiel-Lewandrowski C, Del Guzzo CA, Disse M, Dowd M, Eilers R Jr, Ortiz AE, Morris C, Golden SK, Graves MS, Griffin JR, Hopkins RS, Huang CC, Bae GH, Jambusaria A, Jennings TA, Jiang SI, Karia PS, Khetarpal S, Kim C, Klintmalm G, Konicke K, Koyfman SA, Lam C, Lee P, Leitenberger JJ, Loh T, Lowenstein S, Madankumar R, Moreau JF, Nijhawan RI, Ochoa S, Olasz EB, Otchere E, Otley C, Oulton J, Patel PH, Patel VA, Prabhu AV, Pugliano-Mauro M, Schmults CD, Schram S, Shih AF, Shin T, Soon S, Soriano T, Srivastava D, Stein JA, Sternhell-Blackwell K, Taylor S, Vidimos A, Wu P, Zajdel N, Zelac D, Arron ST. Incidence of and Risk Factors for Skin Cancer in Organ Transplant Recipients in the United States. JAMA Dermatol. 153(3):296-303
2017 Liu, KX, Zimarowski, MJ, Wu, PA. Contact Dermatitis Associated with Alopecia and Hyperpigmentation. Pediatric Dermatology. 34(5): 624-625.
2016 Wu, PA, Chen, CA, Stern, RS. Presence of Hand Warts Is Associated with Subsequent Development of Cutaneous Squamous Cell Carcinoma in Psoriasis Patients Treated with Psoralen UVA (PUVA). The Journal of Investigative Dermatology. 136(11): 2317-2319.
2016 Xue, Y, Ratushny, V, Koralnik, IJ, Schlaug, G, Wu, PA. Allergic Dermatitis Caused by Endovascular Coiling of Brain Aneurysm. Dermatitis: contact, atopic, occupational, drug. 27(3): 149-50.
2015 Wu, PA, Stern, RS. How likely is another nonmelanoma skin cancer?: better informing patients and clinicians. JAMA Dermatology. 151(4): 369-70.
2014 Wu, PA, Huang, V, Bigby, ME. Interventions for mycosis fungoides: critical commentary on a Cochrane Systematic Review. The British Journal of Dermatology. 170(5): 1015-20.
2013 Wu, PA, Katz, KA, James, WD. Topical antibiotic use following dermatologic procedures. Journal of the American Academy of Dermatology. 68(3): 516-7.
2012 Wu, PA, Stern, RS. Topical tretinoin, another failure in the pursuit of practical chemoprevention for non-melanoma skin cancer. The Journal of Investigative Dermatology. 132(6): 1532-5.
2009 Wu, PA, Kim, YH, Lavori, PW, Hoppe, RT, Stockerl-Goldstein, KE. A metaanalysis of patients receiving allogeneic or autologous hematopoietic stem cell transplant in mycosis fungoides and Sézary syndrome. Biology of blood and marrow transplantation: journal of the American Society for Blood and Marrow Transplantation. 15(8): 982-90.
