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Dr. Diane Flershem, MD

Dr. Diane Flershem, MD

Internal Medicine*
30+ years of experience

Dr. Diane Flershem, MD is an internist in Arlington Heights, IL and has over 30 years of experience in the medical field. She graduated from Rush University in 1994. She is affiliated with medical facilities such as Northshore University Healthsystem Evanston Hospital and Northwestern Medicine Central Dupage Hospital. She is not accepting new patients.

4.8 Star Rating
Based on 17 reviews 4.8 Star Rating (17 reviews)

Practice

3405 N Arlington Heights Rd Arlington Heights, IL 60004
Telehealth available

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Dr. Flershem's Reviews

Likelihood to recommend Dr. Flershem

4.8
17 ratings, 9 with a written review
5 star
94%
94%
4 star
0%
0%
3 star
0%
0%
2 star
0%
0%
1 star
6%
6%

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Scheduled a new patient appointment online- it was confirmed-arrived for appointment and was told it was canceled. Then was told on line appointments were not up and functioning. Do not schedule on line. Will be looking for another doctor.
What went well
No results
What could be improved
No results
Helpful
Nov 01, 2021
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I have been a long term patient of Dr. Flershem and despite moving farther away, I continue to drive the distance to have her manage my care. She is incredibly thorough, compassionate and a real problem solver. Excellent physician!
What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
What could be improved
No results
Helpful
Apr 13, 2021
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Dr. Flershem in every respect is an outstanding doctor. She has amazing medical instincts with great communication skills who takes the care of her patients very seriously. She has resolved numerous medical issues I accumulated after 57 years of neglect and bad habits including dangerously high blood pressure, severe sleep apnea, benign tremors of the hand and Pagets disease in the hip and lower spine. She educates her patients which in our case included encouraging us to see a dermatologist every year for a skin exam and prompting us to lose weight which we both did. If you care about your well being and put in the effort to follow through on her directions she will do great things for your health. If you are not serious about your health you should probably not waste your time or hers. My wife and I both feel so fortunate to have Dr. Flershem in our corner and our vastly improved health is the evidence. In this day and age a primary care doctor like her is impossible to find.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 other person found this helpful
Helpful
Richard Remington – Jul 16, 2020
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Outstanding physician and practice!
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 other person found this helpful
Helpful
Jun 14, 2020
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Dr. Flershem has been my family doctor for the last 5 years and came highly recommended. I would recommend her to all my friends and family and have. She is friendly, professional and very thorough with impeccable follow up and follow through. I feel better in health knowing I have a first rate advocate to keep me healthy and get me back to health when needed. I can't thank her enough for taking great care of my family, and me too.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
3 others found this helpful
Helpful
Tom Cimino – Apr 07, 2020
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Dr. Flershem is truly an exceptional physician.She listens to ALL of your concerns no matter how small and will then come up with a plan of action. Because of her persistent and thorough care, I was able to find out that I had a rare autoimmune disease and now have the best care possible. If you need a doctor that will really listen to your concerns, she is the one for you!!
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 others found this helpful
Helpful
Marlyn in Arlington Heights, IL – Feb 10, 2019
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Dr. Flershem is my very own guardian angel. Her persistence in sending me back to doctors when certain tests appeared inconclusive (that she knew could be serious) helped to catch early stage cancers two times. She is knowledgeable, compassionate, and dedicated to her patients. I highly recommend her.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 others found this helpful
Helpful
JT in Lake Zurich, IL – Oct 24, 2018
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Wonderful doctor. Thorough, caring and genuinely interested in the well-being of her patients.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 others found this helpful
Helpful
Deborah in Arlington Heights, IL – Aug 08, 2018
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Dr. Flershem is always pleasant, she listens to your difficulties without judgement,and always tries to find the solution. I never feel embarrassed to tell her what is going on with my body. She is never condescending. I recommend her especially to then women
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
9 others found this helpful
Helpful
Sharon in Palatine, IL – Mar 31, 2016
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About Me

biography

Dr. Diane Flershem, MD is an internist in Arlington Heights, IL and has over 30 years of experience in the medical field. She graduated from Rush University in 1994. She is affiliated with medical facilities such as Northshore University Healthsystem...read more
  • Internal Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Rush University

    Medical School, 1994
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

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Locations

Practice

Office3405 N Arlington Heights Rd Arlington Heights, IL 60004
1

Practice

Office3411 N Arlington Heights Rd Arlington Heights, IL 60004
2

Affiliated Hospitals

  • Northwestern Medicine Central Dupage Hospital

    25 N Winfield Rd
    Winfield, IL 60190
    Recipient of 8
    hospital awards

    Patient Safety Excellence Award™ (2025)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    Outstanding Patient Experience Award™ (2024, 2022)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    87%
    Patients said they were given information about recovering at home

    3% higher than the national average

    80%
    Patients would recommend the hospital to friends and family

    15% higher than the national average

    View all patient feedback
  • Northshore University Healthsystem Evanston Hospital

    2650 Ridge Ave
    Evanston, IL 60201
    Recipient of 17
    hospital awards

    America's 250 Best Hospitals Award™ (2025, 2024, 2023)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    Patient Safety Excellence Award™ (2025, 2024)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    87%
    Patients said they were given information about recovering at home

    3% higher than the national average

    78%
    Patients said that doctors always listened to them and explained things well

    2% higher than the national average

    View all patient feedback
  • Northwest Community Hospital

    800 W Central Rd
    Arlington Heights, IL 60005
    Recipient of 6
    hospital awards

    Patient Safety Excellence Award™ (2025, 2024, 2023)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

    How patients felt about the care they received at this hospital.

    81%
    Patients said they were given information about recovering at home

    3% lower than the national average

    75%
    Patients said that doctors always listened to them and explained things well

    1% lower than the national average

    View all patient feedback
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