Gerta S. Janss, MD

Gerta S. Janss, MD

4.8 
2422 ratings  Read Reviews
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Primary Specialty

Dermatology

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Reasons to Schedule a Visit

This medical professional may be a good choice for you if you are looking for care for any of the following:

  • Acne (adult or teenager)
  • Bacterial skin infection (cellulitis)
  • Blisters (pemphigus)
  • Bug Bites
  • Cosmetic consult
  • Cyst or abscess
  • Dark skin patches (melasma)
  • Eczema (dry, itchy or bumpy skin)
  • Genital concerns, male
  • Genital conditions, female
  • Hair follicle that is inflamed or infected (folliculitis)
  • Hair loss (alopecia)
  • Hidradenitis suppurativa
  • History of melanoma
  • Inflamed cyst (swollen, red or painful cyst)
  • Itchy, peeling or red skin
  • Mole or lesion evaluation
  • Mole that is bleeding
  • Nail evaluation
  • Noncancerous skin tumor (seborrheic keratosis)
  • Psoriasis
  • Rash
  • Redness or flushing of face (rosacea)
  • Scar tissue (keloid)
  • Skin allergies or hives
  • Skin cancer concern
  • Skin color loss (vitiligo)
  • Skin complications from radiation or chemo (cancer treatments)
  • Skin dark spots (hyperpigmentation)
  • Skin exam for full body
  • Skin fungus
  • Skin immune systems conditions (sarcoidosis, granuloma, morphea, scleroderma)
  • Skin inflammation (atopic/contact dermatitis)
  • Skin tag removal
  • Sun spots (actinic keratosis)
  • Sweating excessively (hyperhidrosis)
  • Viral skin infection (molluscum)
  • Warts
  • White bumps on skin (milia)

Education

Medical Education:
MD, University of Illinois at Chicago College of Medicine - 1987
Internship:
McGaw Medical Center of Northwestern University - 1988
Residency:
University of Illinois College of Medicine at Chicago - 1991

Languages Spoken

  • Spanish

Board Certifications

  • American Board of Dermatology - Dermatology (Certified)

Faculty Profile

Clinical Assistant Professor, Feinberg School of Medicine

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Practice Groups and Affiliations

Medical Group:
Northwestern Medical Group
On Medical Staff At:
Catherine Gratz Griffin Lake Forest Hospital
Northwestern Memorial Hospital

Ratings and Reviews

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Overall Rating

4.8
4.8 

2422 Ratings

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Reviews from Patients

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Reviews from Patients

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Disclosures

Gerta S. Janss, MD reported no external professional relationships for calendar year 2025.

External Professional Relationships

Pharmaceutical, device, and biotechnology companies frequently collaborate with basic scientists and physicians within an academic medical center to help advance science and improve patient care. These relationships are important in achieving scientific breakthroughs and in establishing the effectiveness and safety of promising new therapies. In order to assure objectivity in clinical research and patient care, the Northwestern University Feinberg School of Medicine (Feinberg), Northwestern Memorial HealthCare, Children's Hospital of Chicago Medical Center, and the Shirley Ryan AbilityLab have adopted integrity policies that require research and clinical faculty (in full-time, part-time, and unpaid/voluntary categories) to report compensated and uncompensated external industry relationships. Patients are encouraged to discuss these disclosures with their physician as well as to inquire as to how these relationships are overseen by Feinberg. To learn more about our Disclosure and Professional Integrity Policy, and the conflict of interest policies of our joint affiliate survey partners, please go to our Office for Regulatory Affairs Policies page.

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