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John Joseph Ragan, MD
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7 Patient Reviews
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Office Hours

  • Mon:8:00am - 5:00pm
  • Tue:8:00am - 5:00pm
  • Wed:8:00am - 5:00pm
  • Thu:8:00am - 5:00pm
  • Fri:8:00am - 5:00pm

John Joseph Ragan, MD

Internal Medicine Physician - Cardiovascular Disease

Highlights

  • Board Certified

Biography

John Joseph Ragan, MD is a Internal Medicine Physician - Cardiovascular Disease practicing in Detroit Lakes, MN

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

Featured Review See More Reviews

Dr Ragan answered all my questions. He made good care recommendations and listened to my concerns…

Anonymous

Summary

Provider Training

UniversityDegreeFocusGraduated
New York Medical College- Valhalla NyOther Degree1990
New York Medical CollegeMedical Degree1990

InstitutionFocusYear
Residency - Cleveland Clinic Foundation Not Specified
Residency - Cleveland Clinic Fndn, Cardiovascular Diseases; Naval Regional Medical Center, Internal MedicineNot Specified
Internship - Naval Hospital1991

CertificationCert. BodyYear
Internal medicineInternal MedicineNot Specified

Photos

Provider Profile 0Provider Profile 1

Specialties

Languages Spoken
English
Medical Specialties
  • Internal Medicine Physician - Sub-Specialty: Cardiovascular Disease

Internal Medicine

Years In Practice: 29 (started in 1997)

Accepts New Patients: Yes

Payment Options

Payment Details

Reviews

Average Rating: 5
Number of Reviews: 7
Most Recent Review: 11/29/2025
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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

Provider Evaluation

Listening Skills
Clear Explanations
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Verified Patient

“Dr Ragan answered all my questio...”

Dr Ragan answered all my questions. He made good care recommendations and listened to my concerns

Anonymous 11/29/2025
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Verified Patient

“Dr Ragan has always been very go...”

Dr Ragan has always been very good about explaining options for further care when needed and I trust his medical advice

Anonymous 11/11/2025
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Verified Patient

“Very easy to communicate with hi...”

Very easy to communicate with him & listened to my concerns.

Anonymous 09/19/2025
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Verified Patient

“I have seen the same physician n...”

I have seen the same physician now for at least five or more years. A good relationship is worth the price of being shuffled around to who knows who. The present situation is very good, and I repeat, there is a good team on the floor.

Anonymous 05/15/2025
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Verified Patient

“Dr Ragan is fantastic. He's exce...”

Dr Ragan is fantastic. He's excellent and extremely considerate and conscientious provider.

Anonymous 11/12/2025
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Verified Patient

“Dr. Ragan is areal assist to you...”

Dr. Ragan is areal assist to your clinic & hospital

Anonymous 10/30/2025
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Verified Patient

“Good experience...”

Good experience

Anonymous 08/09/2025

Locations

Affiliated Practices

Practice Colleagues

Anne Zarling, CRNA   -   Certified Registered Nurse Anesthetist
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Sheryl Rudolf, APRN, CNP   -   Clinical Nurse Specialist
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Manuel Moran, MD   -   Colon & Rectal Surgeon, Surgeon
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Jennifer Westmoreland, MD   -   Diagnostic Radiologist
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Brittany Hjermstad, PA-C   -   Internal Medicine Physician
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Procedures & Services

Procedures & Treatments Offered

    Commonly Prescribed Medications

    John Joseph Ragan, MD has not yet listed the medications that he commonly prescribes.

    Accepted Insurance

    Accepted Insurance

    John Joseph Ragan, MD has not yet specified the insurance plans he accepts.
     

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