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John R Roost, DO
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6 Patient Reviews
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Office Hours

  • Mon:8:00am - 4:30pm
  • Tue:8:00am - 4:30pm
  • Wed:8:00am - 4:30pm
  • Thu:8:00am - 4:30pm
  • Fri:8:00am - 4:30pm

John R Roost, DO

Obstetrician/Gynecologist - General

Biography

John R Roost, DO is a Obstetrician/Gynecologist - General practicing in Defiance, OH

He has not yet shared a personalized biography with Doctor.com.

Featured Review See More Reviews

Honestly this is my first experience with a male OBGYN and now I can see why everyone loves Dr. Roost. He was running behind from a busy day but never once made us feel rushed or like my questions were a burden when it was my turn for my appointment. He made me feel very comfortable within moments with how personable he is …

Anonymous

Summary

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Specialties

Languages Spoken
English
Medical Specialties
  • Obstetrician/Gynecologist

Accepts New Patients: Yes

Payment Options

Payment Details

Reviews

Average Rating: 5
Number of Reviews: 6
Most Recent Review: 12/18/2025
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Office & Staff Evaluation Not rated

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Office Appearance & Atmosphere Not rated
Handling of Billing Matters Not rated
Average Wait Time Not Rated
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Verified Patient

“Honestly this is my first experi...”

Honestly this is my first experience with a male OBGYN and now I can see why everyone loves Dr. Roost. He was running behind from a busy day but never once made us feel rushed or like my questions were a burden when it was my turn for my appointment. He made me feel very comfortable within moments with how personable he is and I never once felt judged. I have already recommended him to a close friend who is hoping to have a baby soon.

Anonymous 12/18/2025
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Verified Patient

“Dr. Roost is excellent physician...”

Dr. Roost is excellent physician. He listens and is very attentative. Mercy is fortunate to have him!

Anonymous 09/26/2025
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Verified Patient

“Very thorough in describing proc...”

Very thorough in describing procedure needed. Risks, benefits, addressed concerns

Anonymous 07/01/2025
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Verified Patient

“I have recommended Dr. Roost man...”

I have recommended Dr. Roost many times. He's one of the very best!

Anonymous 10/13/2025
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Verified Patient

“It was my first time meeting Dr....”

It was my first time meeting Dr. Roost, but I thought he was helpful and made me feel at ease.

Anonymous 09/24/2025
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Verified Patient

“Very positive experience!...”

Very positive experience!

Anonymous 06/20/2025

Locations

Affiliated Practices

Practice Colleagues

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Donna Augustine, APRN-CNM   -   Certified Nurse Midwife
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Mitchell Greenbaum, DO   -   Obstetrician/Gynecologist
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Shelby Holloman, APRN-CNM   -   Certified Nurse Midwife, Obstetrician/Gynecologist
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Gretchen Matuszewski, APRN-CNP   -   Nurse Practitioner
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Procedures & Services

Procedures & Treatments Offered

    Commonly Prescribed Medications

    John R Roost, DO has not yet listed the medications that he commonly prescribes.

    Accepted Insurance

    Accepted Insurance

    John R Roost, DO has not yet specified the insurance plans he accepts.
     

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