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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.

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visit on 6/23/2022
Dr. Tonnessen listened and explained everything about my problem. He was very thorough. P
What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
What could be improved
No results
1 other person found this helpful
Helpful
Paula L. – Jun 25, 2022
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I saw Ladan Abbasi for a vein issue that had been bothering me for years. She was delightful, professional, courteous, very well suited for her job. She carefully explained every single thing at the consultation. When I went back for the procedure she immediately put me at ease and began working on me explaining everything along the way. My results are great and I am delighted with her work. The staff was equally friendly, helpful and informative.
What went well
  • Office environment
  • 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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Described process in detail, professional and caring approach through entire procedure
What went well
  • Office environment
  • 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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Good
What went well
  • Office environment
  • 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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Dr. Tonnessen truly cares about his patients. He's direct, honest, and inspires trust and confidence. Dr. Tonnessen takes time to explain each step in the process and to answer questions.
What went well
  • Office environment
  • 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
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Dr. Tonnessen listened to my concerns and was very helpful as he explained the upcoming procedures.
What went well
  • Office environment
  • 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
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Confidant, kind, great care
What went well
  • Office environment
  • 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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Very pleasant and reassuring. Everyone was kind and professional.
What went well
  • Office environment
  • 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
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thorough exam and treatment plan, had a blast in the procedure room. Made a not so fun outpatient procedure completely enjoyable with banter and jokes.
What went well
  • Office environment
  • 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
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All the stuff are great and very professional.
What went well
  • Office environment
  • 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
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professional and thorough......excellent
What went well
  • Office environment
  • 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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Very nice. Friendly and informative.
What went well
  • Office environment
  • 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
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Everyone that works there was extremely thorough and informative. They answered any questions I had and made me a part of the experience. They make you feel important and not just a number which is hard to come across nowadays. I highly recommend The Vein Institute of Hunterdon.
What went well
  • Office environment
  • 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
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I appreciated the care and concern in explaining the procedure as well as the performing it. The clinical staff was conscientious and caring in support of Dr. Tonnessen
What went well
  • Office environment
  • 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
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totally professional
What went well
  • Office environment
  • 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
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excellent...good dr.
What went well
  • Office environment
  • 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
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Everyone has been very compassionate. This process has given me more confidence. I definitely recommend the Vein Institute!
What went well
  • Office environment
  • 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
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assurance that the process is well planned an
What went well
  • Office environment
  • 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
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excellent and easy expience
What went well
  • Office environment
  • 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
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My experience is very positive
What went well
  • Office environment
  • 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