Colleen A. Keegan, DO

Colleen A. Keegan, DO

5.0 
1871 ratings  Read Reviews
Northwestern Medicine logoNorthwestern Medicine Regional Medical Group

Primary Specialty

Dermatology

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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 Hospital
Delnor 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.

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Overall Rating

5.0
5.0 

1871 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

April 10, 2025

5.0

Very compassionate and great at explaining

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April 08, 2025

5.0

Dr Keegan is excellent

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April 08, 2025

5.0

Dr. Keegan is caring and considerate and takes her time with patients. She includes them in decisions as well.

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April 08, 2025

5.0

She is amazing

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April 08, 2025

5.0

Dr Keegan is so knowledgeable, caring and very pleasant to work with. She is a great listener and also a problem solver I highly recommend her.

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April 08, 2025

5.0

I already have recommended her to friends

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April 02, 2025

5.0

She does it all 200% and more She cares She is experienced and very knowledgeable

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April 02, 2025

5.0

Dr. Keegan is an amazing and wonderful doctor. I wish it didn't take so long to get an appointment.

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April 01, 2025

5.0

She is very thorough, also explains what she see and what it is in layman's terms.

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March 26, 2025

5.0

Very friendly and knowledgeable

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March 26, 2025

5.0

Great clinical insight by Dr Keegan. Both w what she's seeing in the now and what to look forward for the future. Wonderful bedside manner too

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March 15, 2025

5.0

She's one of the best physicians I've ever had. How much she truly cares about her patients comes through every time!

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March 07, 2025

5.0

I find Dr Keegan to be kind, helpful and willing to listen and discuss my concerns.

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March 05, 2025

5.0

Professional, pleasant

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March 05, 2025

5.0

Very thorough and kind

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March 05, 2025

5.0

She is a caring and attentive physician who cares about her patients.

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March 02, 2025

5.0

Very knowledgeable and is very considerate of you and does not rush with any questions you might have.

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February 26, 2025

5.0

Dr 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.

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February 26, 2025

5.0

Very thorough and compassionate care.

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February 26, 2025

5.0

Dr Keegan is a very caring doctor.

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February 25, 2025

4.0

Only my first visit so far I thought she was caring and made an effort to listen.

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February 25, 2025

5.0

She is very personable and answers all my questions

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February 25, 2025

5.0

She is knowledgeable, caring, professional, and thorough. I have siblings with melanoma, and she takes great care to check my skin. I have recommended her to several people.

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February 25, 2025

5.0

Very caring.

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February 18, 2025

5.0

Sje is the best. She is an awesome dermatologist.

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February 10, 2025

5.0

comfortable in her care.

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February 09, 2025

5.0

Dr Keegan rocks! A+++ service provided.

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February 08, 2025

5.0

So nice and helpful

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February 06, 2025

5.0

Dr. Keegan is very thorough. And most importantly, she is extremely caring and competent. Best doctor ever!

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January 28, 2025

5.0

Dr. Keegan is very thorough and explains what she's doing. She told about my next step.

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January 28, 2025

5.0

She is wonderful. Always takes time to ask about other health concerns that I have, etc.

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January 23, 2025

5.0

Dr Keegan is so good at what she does. She is professional but so nice. She explains everything she is doing and is concerned for the health of her patients.

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January 21, 2025

5.0

She is down to earth, takes the time to look you over and listen to what is going on.

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January 20, 2025

5.0

Very caring!

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January 16, 2025

5.0

Warm, friendly, competent care. Excellent experience.

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January 15, 2025

5.0

Colleen is a cheerful down to earth person. Super easy to communicate with and talk to. It was a pleasure to be here patient and will be coming back in the future.

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January 13, 2025

5.0

Her professionalism and knowledge

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January 11, 2025

5.0

She is thorough and knowledgeable, and treats me like a person, which is important.

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January 10, 2025

5.0

She take time to listening to concerns and examine the body to evaluate the situation at hand. And she goes the extra mild by citing in referral were needed. She is great.

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January 09, 2025

5.0

Dr. Colleen Keegan and her staff are very Professional and always look out for my well being. I recommend her and her staff to anyone that needs a Great Dermatologist

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January 09, 2025

5.0

Provider listens, and then provides full explanations related to treatment choices

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January 08, 2025

5.0

Excellent and compassionate doctor!

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December 24, 2024

5.0

Great care and personal touch

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December 19, 2024

5.0

Dr. Keegan is easy to speak with and she is extremely knowledgeable in her field.

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December 18, 2024

5.0

Dr. Keegan is exceptional in explaining her findings, recommending care treatment and practices and is an engaging personality.

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December 18, 2024

5.0

Dr. Keegan is very thorough and explains everything very well. Great doctor

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December 17, 2024

5.0

See above. I have only seen Dr. Keegan except for one removal by a surgeon.

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December 17, 2024

5.0

Dr Keegan cares about her patients. Shes the best doctor

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December 11, 2024

5.0

Professional knowledgeable, personable doctor. Outstanding personality.. she always takes time with and and explains everything thoroughly

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December 08, 2024

5.0

Personable and explains things well. Knowledgeable with my conditions

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December 04, 2024

5.0

she is thorough and explains everything

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December 04, 2024

5.0

Thorough and spends the time you need with her. . explains everything well.

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December 04, 2024

5.0

I love Dr. Keegan! She's great. She listens, is thorough, and kind.

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December 04, 2024

5.0

She is very efficient.

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December 03, 2024

5.0

Takes great care of her patients

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December 03, 2024

5.0

She is an excellent, knowledgeable, caring doctor.

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November 26, 2024

5.0

As 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

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November 26, 2024

5.0

Competent and personable.

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November 24, 2024

5.0

Very informative doctor that took the time to review my concerns. Gave helpful feedback and provided a plan to identify any future problems.

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November 19, 2024

5.0

Thorough, knowledgeable, takes her time during the exam, explains everything

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November 14, 2024

5.0

Dr Keegan listens. She engages me in my care and makes the time to explain not just what, but why.

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November 14, 2024

5.0

Dr. Keegan has been my dermatologist for almost 25 years. I have seen other doctors during her leave times, but always return to her care.

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November 13, 2024

5.0

Very empathetic and caring doctor. Very thorough exams and listens to patient.

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November 13, 2024

5.0

Dr Keegan is superb. Professional, proficient, and personable.

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November 12, 2024

5.0

COLLEEN KEEGAN TAKES HER TIME WITH YOU. IS EXTREMELY THOROUGH,VERY CARING.

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November 11, 2024

4.0

I don't have many years experience seeing Dr Keegan, but I do with Dr [ ]. He has an extraordinarily high opinion of her, which I base my opinion of Dr Keegan on.

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November 07, 2024

5.0

Great professional

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November 07, 2024

5.0

Excellent care and concern - answers all questions. . is not in a rush to get through your appointment.

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November 06, 2024

5.0

Very informative

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November 06, 2024

5.0

She is smart, caring, and a good person.

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November 05, 2024

5.0

Very knowledgeable and good manners with patients.

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November 04, 2024

5.0

Good doctor

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November 01, 2024

5.0

She is a great skin Doctor and cares for her patients.

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October 30, 2024

5.0

Capable. Interested in my care

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October 30, 2024

5.0

She is wonderful

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October 23, 2024

5.0

Provider was thorough and engaging; made the time to be thoughtful about my comfort, listened to my concerns and collaboratively determined a plan to proceed.

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October 21, 2024

5.0

Care

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October 20, 2024

5.0

I really like Dr. Keegan and She does a great job with her patient rapport.

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October 16, 2024

5.0

Great bedside manner. Answered my questions.

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October 16, 2024

5.0

Very concerning and caring doctor. She takes the overall Health of the patient into consideration before describing any medication.

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October 15, 2024

5.0

She is very professional and makes you feel relaxed.....and seems to perform every procedure with ease and relatively pain free. Great doctor!!!

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October 14, 2024

5.0

As 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!

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October 13, 2024

5.0

Friendly explained everything and efficient

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October 10, 2024

5.0

She is personable and knows her outcomes.

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October 08, 2024

5.0

She's thoughtful and knowledgeable

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October 02, 2024

5.0

I believe everyone would be pleased having her as a doctor.

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October 02, 2024

5.0

Knowledge, caring comprehensive care

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October 01, 2024

5.0

Dr. Keegan cares about you and your health. She shows respect to her patients and explains what she is doing and finding if anything, during a skin exam.

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October 01, 2024

5.0

Kind, friendly and very informative.

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October 01, 2024

5.0

Very nice consultation and she listens and answers questions.

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September 25, 2024

5.0

Dr Keegan is extremely knowledgeable and smart

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September 25, 2024

5.0

Dr Keegan is thorough and most of all compassionate. She has the ability to make you feel comfortable in perhaps an uncomfortable situation

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September 25, 2024

5.0

Dr 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.

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September 17, 2024

5.0

Easy to talk to explains well, takes the time to understand your situation. Friendly

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September 17, 2024

5.0

I think Colleen has an intense interest in my well being and in trying to solve my issue.

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September 16, 2024

5.0

Professional, thorough, easy to understand, pleasant personality.

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September 11, 2024

5.0

Dr Keegan found and diagnosed two different skin cancers for me, and treated me with care and compassion in both cases.

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September 08, 2024

5.0

Dr. Keegan is very knowledgeable about the subject matter that I came in to discuss with her. She is kind and very caring.

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September 04, 2024

5.0

Dr Keegan is personable, thorough, and made me feel like she truly cared.

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September 02, 2024

5.0

She is a good listener and full of valuable information that I can use. She has a great bedside manner and I am comfortable asking questions.

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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.