Jennifer L Kassir, MD

University	Degree	Focus	Graduated
Rush Medical College of Rush University, Chicago Il	Other Degree		1999

Institution	Focus	Year
Residency - Stanford University Hospital, Internal Medicine		Not Specified

Certification	Cert. Body	Year
Internal medicine	Internal Medicine	Not Specified

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Review by Anonymous on April 04, 2026 -

Duly Health and Care - 430 Warrenville Rd. - 430 Warrenville Road

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 - “ I had a very good experience... ”

I had a very good experience

Verified Patient

“I had a very good experience...”

I had a very good experience

Anonymous 04/04/2026

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Review by Anonymous on March 25, 2026 -

Duly Health and Care - 430 Warrenville Rd. - 430 Warrenville Road

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 - “ It should be known that I arrive... ”

It should be known that I arrived after the appointment time, so the wait time was quite good.

Verified Patient

“It should be known that I arrive...”

It should be known that I arrived after the appointment time, so the wait time was quite good.

Anonymous 03/25/2026

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Review by Anonymous on February 18, 2026 -

Duly Health and Care - 430 Warrenville Rd. - 430 Warrenville Road

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 - “ I appreciate the Dr. Kassir list... ”

I appreciate the Dr. Kassir listens to concerns and takes the time to answer questions throughly and thoughtfully.

Verified Patient

“I appreciate the Dr. Kassir list...”

I appreciate the Dr. Kassir listens to concerns and takes the time to answer questions throughly and thoughtfully.

Anonymous 02/18/2026

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Review by Anonymous on February 17, 2026 -

Duly Health and Care - 430 Warrenville Rd. - 430 Warrenville Road

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 - “ Genuine concern for my wellbeing... ”

Genuine concern for my wellbeing is how Dr Kassir presented herself throughout our meeting.

Verified Patient

“Genuine concern for my wellbeing...”

Genuine concern for my wellbeing is how Dr Kassir presented herself throughout our meeting.

Anonymous 02/17/2026

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Review by Anonymous on February 07, 2026 -

Duly Health and Care - 430 Warrenville Rd. - 430 Warrenville Road

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 professional and insightful... ”

Very professional and insightful

Verified Patient

“Very professional and insightful...”

Very professional and insightful

Anonymous 02/07/2026

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Review by Anonymous on March 31, 2026 -

Duly Health and Care - 430 Warrenville Rd. - 430 Warrenville Road

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 - “ This was my first visit with Dr.... ”

This was my first visit with Dr. Kassir! My experience was excellent, she was very caring and confident in her assessment of my issues and next step recommendations. She will be my primary Doctor now. I would highly recommend her!

Verified Patient

“This was my first visit with Dr....”

Anonymous 03/31/2026

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Review by Anonymous on March 22, 2026 -

Duly Health and Care - 430 Warrenville Rd. - 430 Warrenville Road

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 poor bedside manner.... ”

Very poor bedside manner.

Verified Patient

“Very poor bedside manner....”

Very poor bedside manner.

Anonymous 03/22/2026

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Review by Anonymous on February 18, 2026 -

Duly Health and Care - 430 Warrenville Rd. - 430 Warrenville Road

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 - “ Nice experience... ”

Nice experience

Verified Patient

“Nice experience...”

Nice experience

Anonymous 02/18/2026

Open full review

Review by Anonymous on February 07, 2026 -

Duly Health and Care - 430 Warrenville Rd. - 430 Warrenville Road

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 - “ Everyone was so nice I thought I... ”

Everyone was so nice I thought I was back home in Mississippi

Verified Patient

“Everyone was so nice I thought I...”

Everyone was so nice I thought I was back home in Mississippi

Anonymous 02/07/2026

Open full review

Review by Anonymous on February 04, 2026 -

Duly Health and Care - 430 Warrenville Rd. - 430 Warrenville Road

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 Kassir is incredible Doctor. ... ”

Dr Kassir is incredible Doctor. Kind, compassionate, knowledgeable and always very thorough.

Verified Patient

“Dr Kassir is incredible Doctor. ...”

Dr Kassir is incredible Doctor. Kind, compassionate, knowledgeable and always very thorough.

Anonymous 02/04/2026

Internal Medicine Physician - General

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Duly Health and Care

Practice Colleagues

Lauren Gesell, APRN, CNP - Nurse Practitioner

Michael Ross, MD, FACC - Internal Medicine Physician

Jonathan Claud, MD, MBA, FACEP - Emergency Medicine Physician

Jean Houlihan, MD - Internal Medicine Physician

Richard Krouse, MD - Internal Medicine Physician

Ashley Moja, MD - Internal Medicine Physician

Diane Ellig, APN - Family Medicine Physician, Nurse Practitioner

Sriram Rangarajan, MD, MAS - Surgeon

Anthony Badway, MSN, PMHNP-BC - Nurse Practitioner

Anne Schreiber, MD, NCMP - Obstetrician/Gynecologist

Procedures & Services

Procedures & Treatments Offered

Commonly Prescribed Medications

Accepted Insurance

Accepted Insurance