Charles S Ahn, MD

University	Degree	Focus	Graduated
Seoul Natl University- College of Medicine- Chongno-Ku- Seoul- So Korea	Other Degree		1961
University of Michigan Medical School	Medical Degree		1993

Institution	Focus	Year
Internship - St Joseph Mercy Hospital Of Ann Arbor		1994
Residency - University Of Illinois At Chicago		1994
Residency - Columbus-Cuneo-Cabrini Mc, Internal Medicine; Huron Hospital -Cleveland Clinic, Internal Medicine; Vet Affairs Medical Center, Internal Medicine; St Michael'S Medical Center, Internal Medicine; St Michael'S Medical Center, Flexible Or Transitional Year		Not Specified

Certification	Cert. Body	Year
Nuclear Medicine	Nuclear Medicine	Not Specified

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Review by Anonymous on February 24, 2026 -

Duly Health and Care - 808 Rickert Dr. - 808 Rickert Drive

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Dr. Ahn and is complete staff we... ”

Dr. Ahn and is complete staff were very friendly and professional. I would highly recommend Dr. Ahn.

Verified Patient

“Dr. Ahn and is complete staff we...”

Dr. Ahn and is complete staff were very friendly and professional. I would highly recommend Dr. Ahn.

Anonymous 02/24/2026

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Review by Anonymous on February 20, 2026 -

Duly Health and Care - 808 Rickert Dr. - 808 Rickert Drive

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Dr. Ahn was wonderful.... ”

Dr. Ahn was wonderful.

Verified Patient

“Dr. Ahn was wonderful....”

Dr. Ahn was wonderful.

Anonymous 02/20/2026

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Review by Anonymous on February 03, 2026 -

Duly Health and Care - 808 Rickert Dr. - 808 Rickert Drive

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Very good service... ”

Very good service

Verified Patient

“Very good service...”

Very good service

Anonymous 02/03/2026

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Review by Anonymous on January 25, 2026 -

Duly Health and Care - 808 Rickert Dr. - 808 Rickert Drive

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Care is very good at Duly and Dr... ”

Care is very good at Duly and Dr. Ahn is great.

Verified Patient

“Care is very good at Duly and Dr...”

Care is very good at Duly and Dr. Ahn is great.

Anonymous 01/25/2026

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Review by Anonymous on January 16, 2026 -

Duly Health and Care - 808 Rickert Dr. - 808 Rickert Drive

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Excellent doctor!... ”

Excellent doctor!

Verified Patient

“Excellent doctor!...”

Excellent doctor!

Anonymous 01/16/2026

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Review by Anonymous on February 24, 2026 -

Duly Health and Care - 808 Rickert Dr. - 808 Rickert Drive

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Dr. Ahn is one of my favorite pr... ”

Dr. Ahn is one of my favorite providers. He always is very thorough with his diagnosis and explains his findings in a manner that is easy to understand.

Verified Patient

“Dr. Ahn is one of my favorite pr...”

Dr. Ahn is one of my favorite providers. He always is very thorough with his diagnosis and explains his findings in a manner that is easy to understand.

Anonymous 02/24/2026

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Review by Anonymous on February 07, 2026 -

Duly Health and Care - 808 Rickert Dr. - 808 Rickert Drive

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ The doctor understood my situati... ”

The doctor understood my situation and directly answered expectations.

Verified Patient

“The doctor understood my situati...”

The doctor understood my situation and directly answered expectations.

Anonymous 02/07/2026

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Review by Anonymous on January 25, 2026 -

Duly Health and Care - 808 Rickert Dr. - 808 Rickert Drive

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ The staff and doctor who took ca... ”

The staff and doctor who took care of me were very professional and spoke in a calming manner which eased my anxiety.

Verified Patient

“The staff and doctor who took ca...”

The staff and doctor who took care of me were very professional and spoke in a calming manner which eased my anxiety.

Anonymous 01/25/2026

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Review by Anonymous on January 17, 2026 -

Duly Health and Care - 808 Rickert Dr. - 808 Rickert Drive

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Dupage medical group is the best... ”

Dupage medical group is the best

Verified Patient

“Dupage medical group is the best...”

Dupage medical group is the best

Anonymous 01/17/2026

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Review by Anonymous on January 15, 2026 -

Duly Health and Care - 808 Rickert Dr. - 808 Rickert Drive

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment
Courtesy of Practice Staff Not rated
Appearance & Atmosphere of Office Not rated
Handling of Billing & Insurance Not rated
Average Wait Time Not rated

Provider Evaluation

Willingness to Spend Time with You Not rated
Listening Skills
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ The staff and doctor were extrem... ”

The staff and doctor were extremely helpful and informative about the exam and about the treatment I will be having

Verified Patient

“The staff and doctor were extrem...”

The staff and doctor were extremely helpful and informative about the exam and about the treatment I will be having

Anonymous 01/15/2026

Ophthalmologist - General

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Duly Health and Care

Duly Health and Care

Practice Colleagues

Manali Patel, OD, FAAO, MHA, MS - Optometrist

Scott Stoller, MD - Ophthalmologist

John Tharnstrom, PA - Physician Assistant

Alicia Lee, MD - Internal Medicine Physician

Jerome Hong, MD - Internal Medicine Physician

Mallory Norton, APN - Family Medicine Physician, Nurse Practitioner

Susan Kim, MD - Internal Medicine Physician

Dr Ha Cho, MD - Internal Medicine Physician

Kaitlyn Helgeson, MSN, APN, FNP-BC - Nurse Practitioner

Andrew Jilwan, MD - Ophthalmologist

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