Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Tonnessen, Cardiologist in Flemington, NJ?
Dr. Glen Tonnessen, MD is a Cardiologist, who primarily practices in Flemington, NJ with 1 additional practice location. He is board certified. Dr. Tonnessen is fluent in English, Croatian, Polish, Russian, and Spanish, and is currently seeing new patients. Dr. Tonnessen’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Tonnessen’s office.
What languages does Dr. Tonnessen speak?
Dr. Tonnessen and their clinical team can communicate with patients in the following languages:
Croatian
English
Polish
Russian
Spanish
What conditions does Dr. Tonnessen treat?
As a Cardiologist, Dr. Tonnessen diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Tonnessen. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Chronic Venous Insufficiency
- Vascular Disease
- CVI
- Venous Reflux Disease
- Leg Vein Incompetence
- Peripheral Venous Insufficiency
ICD-10 Codes:
- I872: Venous insufficiency (chronic) (peripheral)
Also known as:
- Varicose Veins
- Painful Varicose Veins
- Spider Veins
- Venous Insufficiency
- Chronic Venous Disease
- Symptomatic Varicose Veins
- Aching Leg Veins
ICD-10 Codes:
- I83892: Varicose veins of left lower extremity with other complications
- I83891: Varicose veins of right lower extremity with other complications
- I83812: Varicose veins of left lower extremity with pain
- I83811: Varicose veins of right lower extremity with pain
Also known as:
- Lymphedema
- Lymphatic Swelling
- Fluid Retention in Limbs
- Chronic Swelling
ICD-10 Codes:
- I890: Lymphedema, not elsewhere classified
Also known as:
- Left Leg Pain
- Right Leg Pain
- Leg Injuries and Disorder
- Pain
- Pain in left lower limb
- Left leg discomfort
- Aching left leg
- Pain in right lower limb
- Right leg discomfort
- Aching right leg
ICD-10 Codes:
- M79605: Pain in left leg
- M79604: Pain in right leg
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Localized Swelling
- Swelling
- Edema
- Localized Edema
- Fluid Retention
- Swelling in one area
- Bloating
ICD-10 Codes:
- R600: Localized edema
- R609: Edema, unspecified
Also known as:
- Hardening of the Arteries in the Heart without Chest Pain
- Atherosclerosis
- Coronary Artery Disease
- Silent Coronary Artery Disease
- Asymptomatic Atherosclerosis
ICD-10 Codes:
- I2510: Atherosclerotic heart disease of native coronary artery without angina pectoris
Also known as:
- Birthmark
- Birthmarks
- Vascular Birthmark
- Nevus
- Skin Mark
ICD-10 Codes:
- I781: Nevus, non-neoplastic
Also known as:
- Deep Vein Thrombosis
- DVT
- Blood Clot in Leg
- Pulmonary Embolism
ICD-10 Codes:
- Z86718: Personal history of other venous thrombosis and embolism
Also known as:
- Shortness of Breath
- Breathing Problems
- Difficulty breathing
- Breathlessness
- Dyspnea
ICD-10 Codes:
- R0602: Shortness of breath
Also known as:
- Atrial Fibrillation
- Afib
- A-fib
- Irregular heart rhythm
ICD-10 Codes:
- I480: Paroxysmal atrial fibrillation
Also known as:
- High Cholesterol
- Cholesterol
- Hypercholesterolemia
- High blood cholesterol
- Elevated cholesterol
ICD-10 Codes:
- E7800: Pure hypercholesterolemia, unspecified
Also known as:
- Long-Term Blood Thinner Use
- Blood Thinners
- Chronic anticoagulant therapy
- Ongoing blood thinner treatment
- Anticoagulant medication use
ICD-10 Codes:
- Z7901: Long term (current) use of anticoagulants
Also known as:
- Vein Compression
- Vascular Disease
- Venous Compression Syndrome
- Pinched Vein
- Vein Entrapment
ICD-10 Codes:
- I871: Compression of vein
Also known as:
- Deep Vein Thrombosis
- DVT
- Venous Thrombosis
- Blood Clot in Leg
ICD-10 Codes:
- I82461: Acute embolism and thrombosis of right calf muscular vein
Which procedures does Dr. Tonnessen perform as a Cardiologist?
As a Cardiologist, procedures performed by a Dr. Glen Tonnessen may include:
- Absent Pulmonary Valve Repair
- Anomalous Coronary Artery Angiography
- Anticoagulation Management
- Aortic Stenosis Repair
- Aortic Valve Repair / Replacement
- Aortopulmonary Window Repair
- Arterial Doppler
- Balloon Septostomy
For detailed information, please contact Dr. Tonnessen's office.
Does Dr. Tonnessen accept my insurance?
Dr. Tonnessen accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Tonnessen accept in Flemington, NJ?
Dr. Tonnessen in Flemington, NJ accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Braven Health
CVS Health (formerly Aetna)
Department of Defense / Tricare
Express Scripts
Horizon BlueCross BlueShield
Independence Blue Cross
Medicare
Mutual of Omaha
UnitedHealthcare
View All Insurances
Where is Dr. Tonnessen's office located?
Ratings & Reviews
5.0
Overall rating
Based on 115 reviews
Office Experience
99% of patients found the doctor and staff friendly and the office clean and modern
Attentiveness
97% of patients felt that their time spent with the doctor was meaningful and impactful and that any follow ups were addressed quickly
Wait Times
90% of patients were satisfied with the wait time
Appointment Booking
98% of patients found it easy to book an appointment
Patients give Dr. Glen Tonnessen an Excellent overall experience rating of 5 out of 5 stars. Dr. Tonnessen has been rated and reviewed by 115 patients. These ratings are based on a variety of factors, including the amount of time patients spent with Dr. Tonnessen, his bedside manner, appointment waiting time, friendliness of the office staff, clarity of diagnosis, and more.
Read Patient ReviewsWhat is Dr. Tonnessen's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Tonnessen's National Provider Identifier (NPI) number is 1154387389.
What common questions do patients ask about Dr. Tonnessen?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Tonnessen
What is Dr. Glen Tonnessen's specialty?
Dr. Tonnessen is a Cardiologist near Flemington, NJ. An internist specializing in cardiovascular diseases focuses on the diagnosis and management of complex heart and blood vessel conditions, including heart attacks and life-threatening arrhythmias. Contact Dr. Tonnessen to book an appointment today.
Is this Dr. Glen Tonnessen affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Tonnessen is affiliated with Hunterdon Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Cardiologist?
Explore Cardiologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Glen Tonnessen accepting new patients in Flemington, NJ?
Yes, Dr. Glen Tonnessen is accepting new patients at this time.
Does Dr. Glen Tonnessen offer online booking?
Please contact Dr. Tonnessen's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Glen Tonnessen?
Please contact Dr. Tonnessen's office for information regarding telehealth appointment availability or for scheduling assistance.
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