Penn Medicine Provider
Dermatology
Todd W. Ridky, MD, PhD
4.9
(217)
Accepting new patients
Sees patients age 12 and up
Penn Dermatology Radnor
Schedule onlineCall 610-902-2400

About me

  • Associate Professor of Dermatology

Education and training

  • Medical School: Case Western Reserve University School of Medicine
  • Residency: MetroHealth Medical Center, Case Western Reserve University
  • Residency: Stanford University Medical Center
  • Fellowship: Stanford University Medical Center

What my patients think about me

Average Rating
4.9

218 reviews

Comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Penn Medicine.

April 2025
5.0
5.0
very professional and knowledgeable
April 2025
5.0
5.0
the doctor is a great communicator and seems very knowledgeable
March 2025
4.0
4.0
dr ridky is great
March 2025
5.0
5.0
thorough exam and excellent follow-up

Insurance accepted

My Locations

Learn about location

Penn Medicine hospital privileges

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Pennsylvania Hospital: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
Dr. Ridky is a Penn Medicine physician.

Qualifications and experience

Treatments and Conditions

My research

Natale CA, Mercado S, Zhuang R, Aguirre-Portolés C, Olayide I, Arnatt CK, Seykora JT, Garyantes TK, Luke W, Ridky TW. LNS8801: An enantiomerically pure agonist of the G protein-coupled estrogen receptor suitable for clinical development , Cancer Res Commun: 2025

Marinaro C, Sauer J, Natale CA, Ridky T, Chen S. An In Vivo Study of LNS8801, a GPER Agonist, in a Spontaneous Melanoma-Prone Mouse Model, TGS , Pigment Cell Melanoma Res: 2025

Lee I, Doepner M, Weissenrieder J, Majer AD, Mercado S, Estell A, Natale CA, Sung PJ, Foskett JK, Carroll MP, Ridky TW. LNS8801 inhibits Acute Myeloid Leukemia by Inducing the Production of Reactive Oxygen Species and Activating the Endoplasmic Reticulum Stress Pathway , Cancer Res Commun, 3: 2023,1594-1606

Hatterschide J, Natale CA, Ridky TW, White EA. Monitoring cell fate in 3D organotypic human squamous epithelial cultures , STAR Protoc, 4: 2023,102101

Kohli J, Ge C, Fitsiou E, Doepner M, Brandenburg SM, Faller WJ, Ridky TW, Demaria M. Targeting anti-apoptotic pathways eliminates senescent melanocytes and leads to nevi regression , Nat Commun, 13: 2022,7923

Doepner M, Lee I, Natale CA, Brathwaite R, Venkat S, Kim SH, Wei Y, Vakoc CR, Capell BC, Katzenellenbogen JA, Katzenellenbogen BS, Feigin ME, Ridky TW. Endogenous DOPA inhibits melanoma through suppression of CHRM1 signaling , Sci Adv, 8: 2022,eabn4007

Aguirre-Portolés C, Payne R, Trautz A, Foskett JK, Natale CA, Seykora JT, Ridky TW. ZIP9 Is a Druggable Determinant of Sex Differences in Melanoma , Cancer Res, 81: 2021,5991-6003

Pharmacologic activation of the G protein-coupled estrogen receptor inhibits pancreatic ductal adenocarcinoma, Christopher A. Natale, Jinyang Li, Tzvete Dentchev, Brian C. Capell, John T. Seykora, Ben Z. Stanger, Todd W. Ridky Pharmacologic activation of the G protein-coupled estrogen receptor inhibits pancreatic ductal adenocarcinoma , Cellular and Molecular Gastroenterology and Hepatology : 2020

Monteleon Christine L, Lee In Young, Ridky Todd W Exophilin-5 supports lysosome-mediated trafficking required for epidermal differentiation. , The Journal of investigative dermatology, 139(10): 2019,2219-2222.e6

Lee Vivian, Gober Michael D, Bashir Hasan, O'Day Conor, Blair Ian A, Mesaros Clementina, Weng Liwei, Huang Andrew, Chen Aaron, Tang Rachel, Anagnos Vince, Li JiLon, Roling Sophie, Sagaityte Emilija, Wang Andrew, Lin Chenyan, Yeh Christopher, Atillasoy Cem, Marshall Christine, Dentchev Tzvete, Ridky Todd, Seykora John T Voriconazole enhances UV-induced DNA damage by inhibiting catalase and promoting oxidative stress. , Experimental dermatology, 29(1): 2019,29-38

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