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Bernard A. Cohen, M.D.

Photo of Dr. Bernard A. Cohen, M.D.
  • Program Director, eMedical Dermatology Review
  • Professor of Dermatology


Dermatology, Hemangiomas, Pediatric Dermatology, Vascular Malformations

Research Interests

Laser therapy; Pediatric pharmacotherapeutics; Skin infestations; Skin infections; Vascular Malformations; Hemangiomas; Acquired and congenital nevi in children; Bullous diseases in children; Teledermatology; Ringworm; Topical anesthetics; Eczema more


Johns Hopkins Pediatrics

Appointment Phone: 410-955-5933
200 N. Wolfe Street
Rubenstein Child Health Building
Baltimore, MD 21287 map
Fax: 410-847-3766

Johns Hopkins Medicine - Green Spring Station

Appointment Phone: 410-955-5933
10755 Falls Road
Pavilion I Suite 350
Lutherville, MD 21093 map
Phone: 410-955-5933 | Fax: 410-847-3766


Dr. Bernard A. Cohen is a professor of dermatology and pediatrics at the Johns Hopkins University School of Medicine. He serves as program director of the Johns Hopkins eMedical Dermatology Review.

He received his medical degree from Johns Hopkins University School of Medicine in 1977, completed his pediatric residency at the Johns Hopkins Children’s Center in 1980, served as chief resident in pediatrics at the Sinai Hospital of Baltimore in 1981, completed his residency in dermatology at Johns Hopkins in 1984, and served as chief resident in dermatology during his last year of training. He was subsequently recruited to Children’s Hospital of Pittsburgh where he served as director of pediatric dermatology until 1991 when he returned to Johns Hopkins.

Dr. Cohen was boarded in pediatrics in 1981, dermatology in 1984 and pediatric dermatology in 2004. He is a fellow in the American Academy of Pediatrics and American Academy of Dermatology, and a member of the Society for Pediatric Dermatology, where he served as president in 2002.

Dr. Cohen is the author or coauthor of numerous articles published in peer-reviewed journals such as the Lancet, Archives of Dermatology, and the New England Journal of Medicine, among others. He has a special interest in infantile hemangiomas, vascular malformations, infections and infestations, other birthmarks, cutaneous laser surgery, medical education and imaging in dermatology. more


  • Program Director, eMedical Dermatology Review
  • Professor of Dermatology
  • Professor of Pediatrics

Departments / Divisions

Centers & Institutes



  • M.D., Johns Hopkins University School of Medicine (Maryland) (1977)

Research & Publications

Research Summary

Dr. Cohen’s research interests include hemangiomas and vascular malformation, infections and infestations, pediatric pharmacotherapeutics and laser therapy.

Selected Publications

View all on Pubmed

Agi C, Cohen B. "Solar protection by hair: more complex than it seems to be-reply." JAMA Pediatr. 2014 Nov 1;168(11):1079.

Cohen J 3rd, Shahrokh K, Cohen B. "Analysis of 36 cases of Blaschkoid dyspigmentation: reading between the lines of Blaschko." Pediatr Dermatol. 2014 Jul-Aug;31(4):471-6.

Agi C, Cohen B. "The big bang theory: adolescent hairstyles and sun protection." JAMA Pediatr. 2014 Jul;168(7):597-8.

Wolf DS, Golden WC, Hoover-Fong J, Applegate C, Cohen BA, Germain-Lee EL, Goldberg MF, Crawford TO, Gauda EB. "High-Dose Glucocorticoid Therapy in the Management of Seizures in Neonatal Incontinentia Pigmenti: A Case Report." J Child Neurol. 2014 Mar 28.

Puttgen KB, Summerer B, Schneider J, Cohen BA, Boss EF, Bauman NM. "Cardiovascular and blood glucose parameters in infants during propranolol initiation for treatment of symptomatic infantile hemangiomas." Ann Otol Rhinol Laryngol. 2013 Sep;122(9):550-4.

Activities & Honors


  • Fellow, American Academy of Pediatrics
  • Fellow, American Academy of Dermatology


  • American Academy of Dermatology
  • American Academy of Pediatrics
  • American Dermatology Association
  • Dermatology Foundation
  • Maryland Dermatology Society
  • Society for Pediatric Dermatology

Videos & Media

Recent News Articles and Media Coverage

No-Panic Guide to Head Lice Treatment

Head lice are common in children between the ages of 3 and 11 years old. Johns Hopkins pediatric dermatologist Bernard Cohen, M.D., offers tips for parents on how to get rid of head lice the right way. 

Patient Ratings & Comments

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

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