Mark D Coram

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Review by Anonymous on February 23, 2026 -

Kathryn Severyns Dement Sleep Disorders Center - 401 West Poplar Street

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
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 Not rated
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Excellent provider and staff... ”

Excellent provider and staff

Verified Patient

“Excellent provider and staff...”

Excellent provider and staff

Anonymous 02/23/2026

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Review by Anonymous on February 14, 2026 -

Kathryn Severyns Dement Sleep Disorders Center - 401 West Poplar Street

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
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 Not rated
Clear explanations Not rated
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Great experience. Always a plea... ”

Great experience. Always a pleasant atmosphere. All staff are kind, courteous and friendly!

Verified Patient

“Great experience. Always a plea...”

Great experience. Always a pleasant atmosphere. All staff are kind, courteous and friendly!

Anonymous 02/14/2026

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Review by Anonymous on February 13, 2026 -

Kathryn Severyns Dement Sleep Disorders Center - 401 West Poplar Street

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
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 Not rated
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ All good experiences... ”

All good experiences

Verified Patient

“All good experiences...”

All good experiences

Anonymous 02/13/2026

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Review by Anonymous on February 05, 2026 -

Kathryn Severyns Dement Sleep Disorders Center - 401 West Poplar Street

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
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 Not rated
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ He communicated extremely well a... ”

He communicated extremely well and very kindly!!

Verified Patient

“He communicated extremely well a...”

He communicated extremely well and very kindly!!

Anonymous 02/05/2026

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Review by Anonymous on February 01, 2026 -

Kathryn Severyns Dement Sleep Disorders Center - 401 West Poplar Street

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
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 Not rated
Clear explanations Not rated
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ He did a great job answering my ... ”

He did a great job answering my questions. Thanks

Verified Patient

“He did a great job answering my ...”

He did a great job answering my questions. Thanks

Anonymous 02/01/2026

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Review by Anonymous on February 22, 2026 -

Kathryn Severyns Dement Sleep Disorders Center - 401 West Poplar Street

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
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 Not rated
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Pleasant experience. Nice people... ”

Pleasant experience. Nice people. Very helpful and knowledgeable.

Verified Patient

“Pleasant experience. Nice people...”

Pleasant experience. Nice people. Very helpful and knowledgeable.

Anonymous 02/22/2026

Open full review

Review by Anonymous on February 13, 2026 -

Kathryn Severyns Dement Sleep Disorders Center - 401 West Poplar Street

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
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 Not rated
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Great provider... ”

Great provider

Verified Patient

“Great provider...”

Great provider

Anonymous 02/13/2026

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Review by Anonymous on February 07, 2026 -

Kathryn Severyns Dement Sleep Disorders Center - 401 West Poplar Street

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
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 Not rated
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ All good.... ”

All good.

Verified Patient

“All good....”

All good.

Anonymous 02/07/2026

Open full review

Review by Anonymous on February 01, 2026 -

Kathryn Severyns Dement Sleep Disorders Center - 401 West Poplar Street

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
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 Not rated
Clear explanations Not rated
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ Mark Corim is great... ”

Mark Corim is great

Verified Patient

“Mark Corim is great...”

Mark Corim is great

Anonymous 02/01/2026

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Review by Anonymous on January 31, 2026 -

Kathryn Severyns Dement Sleep Disorders Center - 401 West Poplar Street

Office & Staff Evaluation

Practice Evaluation

Ease of Getting an Appointment Not rated
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 Not rated
Clear explanations
Trust in Decision Making Not rated
Accuracy of Diagnosis Not rated
Post-Visit Follow-Up Not rated

Comment - “ I was pleased with the response ... ”

I was pleased with the response when I had a problem with a medical machine provider. The office was able to solve my problem getting my equipment

Verified Patient

“I was pleased with the response ...”

I was pleased with the response when I had a problem with a medical machine provider. The office was able to solve my problem getting my equipment

Anonymous 01/31/2026

Internal Medicine Physician - Sleep Medicine

Biography

Featured Review See More Reviews

Summary

Specialties

Languages Spoken

Medical Specialties

Payment Options

Reviews

Office & Staff Evaluation Not rated

Provider Evaluation

Locations

Affiliated Practices

Kathryn Severyns Dement Sleep Disorders Center

Practice Colleagues

Sarah Bennett, - Internal Medicine Physician

Eric Geil, - Neurologist

Procedures & Services

Procedures & Treatments Offered

Commonly Prescribed Medications

Accepted Insurance

Accepted Insurance