Dr. John Chanasue, MD

Dr. John Chanasue, MD

Dermatology  |  
Male  |  
Age 67
Insurances AcceptedSave
Dr. John Chanasue, MD is a dermatologist in Alton, IL and has been practicing for 36 years. He graduated from New York Univ Sch Of Med in 1976 and specializes in dermatology and internal medicine.

307 Henry St Ste 200

Alton, IL 62002

Contact Information

Insurance Accepted

  • Aetna
  • Anthem Blue Cross Blue Shield
  • Blue Cross Blue Shield
  • Cigna
  • Coventry Health Care
  • First Health (Coventry Health Care)

*Please verify this information when scheduling an appointment.

Learn about Dr. Chanasue

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you

Top Care Areas


See how frequently Dr. Chanasue performs your care needs compared to other doctors.

Allergic Reaction
very high
more than 99% of peers
Eczema and Contact Dermatitis Due to Detergents
very high
more than 99% of peers
very high
more than 99% of peers

Dr. Chanasue's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

We're trying something new with Top Care Areas.Was it helpful for you?YesNo



  • Dermatology
  • Internal Medicine

Board Certifications

Dr. Chanasue does not have any board certifications listed.


Conditions Treated



  • Abscess or Cyst Drainage or Aspiration
  • Abscess or Fluid Incision and Drainage
  • Destruction of Benign Skin Lesion
  • Excision of Skin Cancer
  • Excision of Skin Lesion

Background Check

0 Malpractice Claims

No malpractice history found for Illinois.

0 Sanctions

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

0 Board Actions

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


  • New York Univ Sch Of Med
    Medical School | Graduated 1976
  • Barnes Jewish Hospital
    Internship Hospital | Completed 1977
  • Barnes Jewish Hospital
    Residency Hospital | Completed 1982

Awards & Recognition

Awards & Honors

Dr. Chanasue has no awards or honors listed.

Media & Publications

Dr. Chanasue has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

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

Dr. Chanasue's Reviews

Likelihood of recommending Dr. Chanasue to family and friends
based on 11 total reviews (3 with comments)

Likelihood to Recommend (11)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Chanasue's Performance

Explains condition(s) well
Answers Questions
Time well spent

Office & Staff Performance

Office environment
Staff friendliness
Average wait time
31 to 45 minutes

Patient Comments (3)

in Alton, IL
Misdiagnosed my husband and told him he had an age/sun spot and did not do a biopsy. My husband went to see a different doctor and who did a biopsy and found out he actually has melanoma that has now spread to his lymph nodes.
Was this helpful? YESNot Helpful
Flag this
in Alton, IL
It's a scam. He would only prescribe a month's worth of acne medication to ensure he would get continuous visits, and the fees associated with those visits. In addition to the unnecessary visits, he is ALWAYS over an hour late. I finally went elsewhere when it was fully apparent he was just milking...more
Was this helpful? YESNot Helpful
Flag this
Dr Chanasue and his staff treats his patients with respect. Sure you might have to wait, but it's because he is spending QUALITY time with his patients, not trying to see how many he can shuffle through.
Was this helpful? YESNot Helpful
Flag this

Are you Dr. Chanasue?
Make it easy for patients to share their feedback. Also manage your personalized profile!