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Dr. Glen Tonnessen, MD

Dr. Glen Tonnessen, MD

Phlebology*
35+ years of experience

Dr. Glen Tonnessen, MD is a phlebologist in Flemington, NJ and has over 35 years of experience in the medical field. He graduated from St George's University in 1987. He is affiliated with Hunterdon Medical Center. He is accepting new patients.

4.9 Star Rating
Based on 120 reviews 4.9 Star Rating (120 reviews)

Hunterdon Cardiovascular Associates

1100 Wescott Dr Ste G3 Flemington, NJ 08822

Make an Appointment

(908) 788-1710

At a Glance

  • Areas of Expertise
    Dr. Tonnessen specializes in the areas of Cardiology, Cardiovascular Disease & Cardiovascular Disease. • See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Good Patient Care
    Patients said they had exceptional care at this hospital. • See hospitals
  • Low Wait Times
    Patients are usually seen in 10 minutes or less.
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Dr. Tonnessen's Reviews

Likelihood to recommend Dr. Tonnessen

4.9

120 ratings, 113 with a written review
5 Star
91%
91%
4 Star
8%
8%
3 Star
0%
0%
2 Star
0%
0%
1 Star
2%
2%

Your trust is our top concern. Learn more.

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All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.

Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.

Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.

RecentHighestLowestMost Helpful
What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
What could be improved
No results
1 person found this helpful
Helpful
Paula L. – Jun 25, 2022
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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
Janet J. – Aug 19, 2021
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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
Daniel C. – May 17, 2021
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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
L. F. – Apr 22, 2021
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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
Anonymous – Apr 06, 2021
×Post a ResponseAre you Dr. Glen Tonnessen, 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
K. B. – Mar 30, 2021
×Post a ResponseAre you Dr. Glen Tonnessen, 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
Barbara G. – Mar 12, 2021
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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
Anthony K. – Feb 24, 2021
×Post a ResponseAre you Dr. Glen Tonnessen, 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
Rae D. – Feb 17, 2021
×Post a ResponseAre you Dr. Glen Tonnessen, 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
Lucila B. – Feb 11, 2021
×Post a ResponseAre you Dr. Glen Tonnessen, 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
Fred D. – Feb 09, 2021
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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
Holly N. H. – Jan 19, 2021
×Post a ResponseAre you Dr. Glen Tonnessen, 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
K D. – Jan 13, 2021
×Post a ResponseAre you Dr. Glen Tonnessen, 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
Kathleen F. – Dec 03, 2020
×Post a ResponseAre you Dr. Glen Tonnessen, 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
Joseph S. – Dec 01, 2020
×Post a ResponseAre you Dr. Glen Tonnessen, 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
C. C. – Nov 19, 2020
×Post a ResponseAre you Dr. Glen Tonnessen, 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
K S. – Nov 05, 2020
×Post a ResponseAre you Dr. Glen Tonnessen, 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
Jerry M. – Oct 29, 2020
×Post a ResponseAre you Dr. Glen Tonnessen, 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
M P. – Oct 15, 2020
×Post a ResponseAre you Dr. Glen Tonnessen, 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
Katherine B. – Oct 06, 2020
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Leave a review

How was your experience with Dr. Tonnessen?

Know Before You Go

About Me

care philosophy

Dr. Glen Tonnessen, MD is a Cardiologist in Clinton, NJ. He is the founder of the Cardiac Catheterization Laboratory at Hunterdon Medical Center.

biography

Dr. Glen Tonnessen is a cardiologist at Hunterdon Medical Center. He completed his medical residency in Internal Medicine at St. Michaels Medical Center in Newark, New J

  • Phlebology

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

  • Seton Hall University

    Fellowship Hospital, 1993

  • St Michael's Medical Center

    Residency Hospital, 1990

  • St Michael's Medical Center

    Internship Hospital, 1988

  • St George's University

    Medical School, 1987
American Board of Medical Specialties®
American Board of Medical Specialties
- 
Cardiology†
American Board of Internal Medicine®
- 
Cardiovascular Disease
National Board of Physicians and Surgeons®
National Board of Physicians and Surgeons®
- 
Cardiovascular Disease
†Self designated 
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.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

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Locations

Hunterdon Cardiovascular Associates

Hunterdon Cardiovascular Associates1100 Wescott Dr Ste G3 Flemington, NJ 08822
1

Practice

Office1738 State Route 31 Ste 210 Clinton, NJ 08809
2

Practice

Hunterdon Cardiology1100 Wescott Dr Ste G4 Flemington, NJ 08822
3

Affiliated Hospitals

  • Hunterdon Medical Center

    2100 Wescott Dr
    Flemington, NJ 08822
    Recipient of 3
    hospital awards

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

    85%
    Patients said they were given information about recovering at home

    1% higher than the national average

    80%
    Patients said that nurses always listened to them and explained things well

    5% higher than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality
See all Phlebologists in Flemington, NJ