Colleen A. Keegan, DO
Northwestern Medicine Regional Medical GroupPrimary Specialty
Dermatology
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Based on January 2024 plan details.
Accepted plans are subject to change. To be sure this medical professional is covered by your insurance plan, please contact your insurance carrier.
Practice Focus Areas
This medical professional has a particular interest or expertise in:
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
- 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
Education
- Medical Education:
-
DO, Midwestern University Chicago College of Osteopathic Medicine - 1986
- Internship:
-
Ascension Illinois/St Francis - 1987
- Residency:
-
Cook County Health and Hospitals System - 1990
Board Certifications
- American Board of Dermatology - Dermatology (Certified)
Practice Groups and Affiliations
- Medical Group:
- Northwestern Medicine Regional Medical Group
- Alignment Category:
-
Northwestern Medicine Physician Network
- On Medical Staff At:
-
Central DuPage HospitalDelnor Hospital
Ratings and Reviews
At Northwestern Medicine, our patient’s feedback is important to us. While different care providers have their own unique strengths, we strive to be as transparent as possible with our quality of care.
Read Ratings FAQsOverall Rating
1871 Ratings
Reviews from Patients
Reviews from Patients
February 26, 2025
5.0 star star star star starDr Keegan is extremely thoughtful and informative. She has worked with me collaboratively during each visit to not only educate, but understand my needs and goals as they pertain to my healthcare.
November 26, 2024
5.0 star star star star starAs noted above, Dr Keegan and her assistant made sure and that I had any other problems that needed extra attention, a full examination was done , was then advised what action or inaction to my psoriasis was needed, a very nice and thoughtful lady , always my go to physician
October 14, 2024
5.0 star star star star starAs mentioned previously she is extremely professional and thorough. She didn't rush through but also didn't waste your time. She notes things in "seem talk" but then explains so you understand and aren't concerned by the long words or terms they are making notes of which I greatly appreciated!
September 25, 2024
5.0 star star star star starDr Colleen and the nurse were one of the sweetest health care professionals that i ever met. They made sure i was comfortable throughout the appointment and gave clear instructions for post-appointment.
Disclosures
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.