Dr. John Flaherty, MD


Infectious Disease Medicine | Male

680 N Lake Shore Dr Ste 1000 Chicago, IL 60611 Get Directions
Dr. John Flaherty, MD
Dr. John Flaherty, MD is an infectious disease medicine doctor who practices in Chicago, IL. He is 59 years old and has been practicing for 34 years. Dr. Flaherty is affiliated with Northwestern Memorial Hospital.

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Dr. Flaherty's Experience

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Visiting Dr. Flaherty

Dr. Flaherty accepts 7 insurance carriers

Dr. Flaherty is now accepting new patients

Affiliated Hospitals

Hospital Quality
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Dr. Flaherty's Reviews

Likelihood of recommending Dr. Flaherty to family and friends
based on 5 total reviews (3 with comments)
Dr. Flaherty's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    Under 10 minutes
Patient Comments (3)
Dr. Flaherty is very professional competent and caring. He took an extraordinary amount of time to understand the uniqueness of my situation and his regiment and follow up led to success treatment.
in Chicago, IL |
I had an excellent experience with Dr. Flaherty. He is a very knowledgeable and experienced physician. I was diagnosed with osteomyelitis, and one of the options was an amputation of the infected toe. Dr. Flaherty suggested a conservative approach and prescribed a combination of antibiotics that allowed to treat my disease without surgical intervention. I am very grateful to Dr. Flaherty for saving me from the amputation and for his very kind and attentive encouragement during the treatment.
in Chicago, IL |
Arrogant, sexist, condescending, upcoded medical chart, falsely wrote that I am a social drinker when I do not drink at all due to medications I take. Consulted him for manifestations of chronic infectious process. Flaherty did NO SEROLOGIES even though I am DISABLED from disease. Falsely stated I have fibromyalgia when he did not an exam that would elicit the diagnosis. Falsely claimed he knows about tick-borne diseases when he has insubstantial expertise. Does not care about patients.
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Dr. Flaherty's experience matches your search based on the following criteria:

  •  Based on total number of patients treated over the last 12 months
  •  Specializes in Infectious Disease Medicine
  •  Board certified in Infectious Disease and Internal Medicine
  •  No malpractice claims found
  •  No sanctions found
  •  No board actions found

Awards & Recognition

  • Awards & Honors
    • Healthgrades Honor Roll
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  • Media & Publications

    Dr. Flaherty has no media or publications listed.

Background Check

  • 0
    Malpractice Claims

    No malpractice history found for Illinois.

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  • 0

    No sanctions history found for the years that Healthgrades collects data.

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  • 0
    Board Actions

    No board actions found for the years that Healthgrades collects data.

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Board Certifications

Why It Matters: Dr. Flaherty's Board Certifications

Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

  • Infectious Disease
  • Internal Medicine

Conditions Treated

Dr. Flaherty does not have any conditions listed. If you are Dr. Flaherty and would like to add conditions you treat, please update your free profile.


  • Medical School
    University Of Illinois College Of Medicine Chicago

    Graduated in 1983

  • Internship Hospital
    University Ia College Med

    Completed in 1984

  • Residency Hospital
    University Ia College Med

    Completed in 1986

  • Fellowship Hospital
    University Chicago Pritzker School Med

    Completed in 1988

Languages Spoken

  • English

Memberships &
Professional Affiliations

Dr. Flaherty does not have any memberships or affiliations listed. If you are Dr. Flaherty and would like to add memberships or affiliations, please update your free profile.


  • Infectious Disease Medicine

Procedures Performed

Dr. Flaherty does not have any procedures listed. If you are Dr. Flaherty and would like to add procedures you perform, please update your free profile.