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Dr. Karl Undesser, MD

Dr. Karl Undesser, MD

Cardiology*
35+ years of experience

Dr. Karl Undesser, MD is a cardiologist in Caldwell, ID and has over 35 years of experience in the medical field. Dr. Undesser has extensive experience in Adult Congenital Heart Conditions and Heart Conditions. He graduated from University of Texas - San Antonio HSC in 1989. He is affiliated with West Valley Medical Center. He is accepting new patients and telehealth appointments.

4.7 Star Rating
Based on 72 reviews 4.7 Star Rating (72 reviews)

Locations

West Valley Cardiology Services

West Valley Cardiology Services1906 Fairview Ave Ste 230 Caldwell, ID 83605
1

West Valley Cardiology Services - Weiser

West Valley Cardiology Services - Weiser645 E 5th St Weiser, ID 83672
2

West Valley Medical Group - Meridian Clinic

West Valley Medical Group - Meridian Clinic745 S Progress Ave Ste 120 Meridian, ID 83642
3

Hospital Highlight

Dr. Undesser is affiliated with West Valley Medical Center Caldwell, a highly rated hospital.

Dr. Undesser is a Healthgrades Choice provider in Cardiology

The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology

  • Above average experience
  • Good hospital quality
  • Good patient ratings
  • No healthcare sanctions
  • Areas of ExpertiseDr. Undesser specializes in the areas of Cardiovascular Disease & Clinical Cardiac Electrophysiology. See board certifications
  • Explains Conditions WellPatients said this doctor explains conditions well. See reviews
  • Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top HospitalPatient Safety Excellence Award™ See hospitals

More Cardiology Specialists at West Valley Medical Center

Experience Check

Search for experience in a specific area

Dr. Undesser's Reviews

Likelihood to recommend Dr. Undesser

4.7

72 ratings, 57 with a written review
5 Star
90%
90%
4 Star
1%
1%
3 Star
1%
1%
2 Star
1%
1%
1 Star
6%
6%

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RecentHighestLowestMost Helpful
What went well
  • Staff friendliness
What could be improved
  • I didn't feel respected
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
5 people found this helpful
Helpful
Diane – Aug 23, 2023
We are sorry to hear of this experience with Dr....Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
No results
What could be improved
  • I didn't feel respected
  • Didn't trust the provider's decisions
5 people found this helpful
Helpful
Concerned patient – Jun 28, 2023
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
4 people found this helpful
Helpful
Mary Pat – Jul 11, 2021
Thank you for taking the time to leave your...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Listened & answered questions
What could be improved
No results
5 people found this helpful
Helpful
Everything was good – Jul 19, 2020
Thank you for the positive feedback! We love...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
7 people found this helpful
Helpful
Sarah J Barker – Jun 17, 2020
Thank you for the positive feedback. We...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 people found this helpful
Helpful
LYDIA M. BLACK – Jun 15, 2020
We truly value your feedback, thank you for...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Catherine Mooney – May 18, 2020
Thank you for taking the time to leave your...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
2 people found this helpful
Helpful
Dale Newberry – May 12, 2020
Thank you for the kind words, Dale! We will be...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
No results
What could be improved
No results
Helpful
Ken Bowman – May 12, 2020
Thank you for your review of Dr. Undesser, Ken!...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Glen Schofer – May 04, 2020
Thank you so much for the feedback! Glad to hear...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Anita – Apr 23, 2020
Dr. Undesser's Reply –
Thank you for the kind words and feedback, Anita!
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Betty M Sawyer – Apr 23, 2020
Thank you so much for the positive feedback! We...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 person found this helpful
Helpful
Brazier – Mar 04, 2020
Thank you so much for the positive feedback! We...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Jan 18, 2020
Thank you for your review! We value our...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
No results
What could be improved
No results
Helpful
Jerry Kuhnhausen – Jan 14, 2020
Thank you so much for the positive feedback! We...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Dec 29, 2019
Dr. Undesser's Reply –
Thank you for the kind words!
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Greg McClean – Dec 03, 2019
Thank you for taking the time to share your...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Monica – Nov 19, 2019
Thank you for the kind words and feedback,...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Debra Curry – Nov 09, 2019
Thank you for the kind words, Debra! We love to...Read More
×Post a ResponseAre you Dr. Karl Undesser, MD?
What went well
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Didn't listen or answer questions
Helpful
Nov 06, 2019
Dr. Undesser's Reply –
Thank you for the kind words!
×Post a ResponseAre you Dr. Karl Undesser, MD?

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About Me

Watch Dr. Undesser's Video

care philosophy

Dr. Undesser is board-certified in internal medicine, cardiovascular disease and electrophysiology and has extensive research experience with several publications

biography

This physician is accepting telehealth visits. Karl P. Undesser, MD, is a board-certified cardiac electrophysiologist who has practiced medicine in the Boise area for over 18 years. He began his schooling in biology at the University of California,...read more
  • Cardiology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • University Of California At San Diego

    Fellowship Hospital
  • Duke University Medical Center

    Residency Hospital
  • University Of Texas - San Antonio Hsc

    Medical School, 1989
American Board of Medical Specialties®
American Board of Internal Medicine®
Cardiovascular Disease
Clinical Cardiac Electrophysiology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Dr. Undesser is a Healthgrades Choice provider in Cardiology

    Read our methodology

    Affiliated Hospitals

    • West Valley Medical Center

      1717 Arlington Ave
      Caldwell, ID 83605
      Recipient of 5
      hospital awards

      Patient Safety Excellence Award™ (2025, 2024, 2023)

      Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

      Outstanding Patient Experience Award™ (2023, 2022)

      Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

      View all awards

      How patients felt about the care they received at this hospital.

      88%
      Patients said they were given information about recovering at home

      4% higher than the national average

      78%
      Patients said that nurses always listened to them and explained things well

      3% higher than the national average

      View all patient feedback
    Learn more about how Healthgrades measures Hospital Quality