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5.0(322 reviews)
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John L. Petersen
Internal Medicine Physician - Interventional Cardiology

Biography

John L. Petersen is a Internal Medicine Physician - Interventional Cardiology practicing in Seattle, WA

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

Featured Review See More Reviews

I have great confidence in him…

Anonymous

Summary

Specialties

Languages Spoken
English
Medical Specialties
  • Internal Medicine Physician - Sub-Specialty: Interventional Cardiology

Years In Practice: 24 (started in 2002)

Accepts New Patients: Yes

Payment Options

Payment Details

Reviews

Average Rating: 5.0
Number of Reviews: 322
Most Recent Review: 10/20/2026
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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 5.0

Clear Explanations 5.0
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Verified Patient

“I have great confidence in him...”

I have great confidence in him

Anonymous 10/20/2026
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Verified Patient

“Very friendly reassuring and com...”

Very friendly reassuring and comfortable with Dr and his assistant. Only concern was length of time to get an appointment!

Anonymous 09/28/2026
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Verified Patient

“The doctor and his assistant soe...”

The doctor and his assistant soent a lot of time with me. The doctor checked me out thoroughly and explained to me clearly about my condition and how to check it out.

Anonymous 09/22/2026
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Verified Patient

“I have had Dr Peterson for many ...”

I have had Dr Peterson for many years and he also was my husband's doctor. He has been the best doctor one can have. Always explaining clearly everything. I am very grateful for him for excellent care and support he has given me and my husband before he died...

Anonymous 09/17/2026
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Verified Patient

“He otedered an EKG and got it th...”

He otedered an EKG and got it that day. Great servicd!

Anonymous 09/09/2026
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Verified Patient

“It was a good experience as alwa...”

It was a good experience as always, very professional and to the point.

Anonymous 09/29/2026
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Verified Patient

“We feel very fortunate to have D...”

We feel very fortunate to have Dr. John Peterson II as our primary cardiac physician. He is highly skilled and very communicative. We are most appreciative. Thanks.

Anonymous 09/27/2026
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Verified Patient

“Dr. Peterson is extremely profes...”

Dr. Peterson is extremely professional and knowledgeable.

Anonymous 09/19/2026
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Verified Patient

“Just a routine checkup that went...”

Just a routine checkup that went well

Anonymous 09/09/2026
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Verified Patient

“First time with this provider . ...”

First time with this provider . I appreciate the professional setting.

Anonymous 09/07/2026
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Affiliated Practices

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Procedures & Services

Procedures & Treatments Offered

    Commonly Prescribed Medications

    John L. Petersen has not yet listed the medications that he commonly prescribes.

    Accepted Insurance

    Accepted Insurance

    John L. Petersen has not yet specified the insurance plans he accepts.