
24 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Tseng, Cardiologist in Walnut Creek, CA?
Dr. Hennessey Tseng, MD is a Cardiologist, who primarily practices in Walnut Creek, CA with 2 additional practice locations. He has been practicing for over 24 years and is board certified. Dr. Tseng graduated from Emory University School Of Medicine and completed his residency at Univ Of Wa Sch Of Med, Cardiovascular Diseases; Emory Univ Sch Of Med, Internal Medicine. Dr. Tseng is fluent in English, and is currently seeing new patients. Dr. Tseng’s practice accepts Kaiser Permanente, Medicaid, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Tseng’s office at (925) 937-1770.
Where did Dr. Tseng go to medical school and complete their residency?
Fellowship: University of Washington School of Medicine,Seattle, Wa, United States
Residency: Univ Of Wa Sch Of Med, Cardiovascular Diseases; Emory Univ Sch Of Med, Internal Medicine | Emory Univ. School of Medicine | University of Washington School of Medicine Program
Medical School: Emory University School Of Medicine
Is Dr. Tseng board certified as a Cardiologist?
Yes, Dr. Hennessey Tseng, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Tseng speak?
Dr. Tseng and their clinical team can communicate with patients in the following languages:
English
What conditions does a Cardiologist like Dr. Tseng typically treat?
As a Cardiologist, Dr. Tseng 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. Tseng. 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. Learn more about our claims-based healthcare methodology.
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Having a Pacemaker
- Pacemakers and Implantable Defibrillators
- Heart pacemaker
- Artificial pacemaker
- Implanted heart device
ICD-10 Codes:
- Z950: Presence of cardiac pacemaker
Also known as:
- Atrial Fibrillation
- Afib
- A-fib
- Irregular heart rhythm
ICD-10 Codes:
- I480: Paroxysmal atrial fibrillation
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Upper body pain
ICD-10 Codes:
- R079: Chest pain, unspecified
What procedures does a Cardiologist like Dr. Tseng typically perform?
As a Cardiologist, Dr. Tseng performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Tseng. 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. Learn more about our claims-based healthcare methodology.
Also known as:
- Subcutaneous Cardiac Rhythm Monitor Insertion
- Implantable Loop Recorder Insertion
- Under-Skin Heart Monitor
- Cardiac Event Recorder Implant
CPT Codes:
- 33285: Insertion, subcutaneous cardiac rhythm monitor, including programming
Also known as:
- Dual-Chamber Pacemaker Insertion
- Permanent Pacemaker Placement
- Atrial and Ventricular Pacemaker
- Heart Rhythm Device Implantation
CPT Codes:
- 33208: Insertion of new or replacement of permanent pacemaker with transvenous electrode(s); atrial and ventricular
Also known as:
- Pacemaker Battery Replacement (Dual Lead)
- Pacemaker Generator Exchange
- Dual Lead Pacemaker Replacement
- Heart Pacemaker Battery Change
- Pacemaker Pulse Generator Replacement
CPT Codes:
- 33228: Removal of permanent pacemaker pulse generator with replacement of pacemaker pulse generator; dual lead system
Does Dr. Tseng accept my insurance?
Dr. Tseng accepts most major insurance plans. Important: Please call our office at (925) 937-1770 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Tseng accept in Walnut Creek, CA?
Dr. Tseng in Walnut Creek, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Shield of California
Cigna Group
Contra Costa
CVS Health (formerly Aetna)
Hill Physicians Medical Group
Humana
Medicare
Molina Healthcare
UnitedHealth Group
View All Insurances
Where is Dr. Tseng's office located?
Dr. Hennessey Tseng's Primary Practice
1450 Treat Blvd Ste 220B
Walnut Creek, CA 94597
(925) 937-1770
What is Dr. Tseng's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Tseng's National Provider Identifier (NPI) number is 1003811746.
What common questions do patients ask about Dr. Tseng?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Tseng
What is Dr. Hennessey Tseng's specialty?
Dr. Tseng is a Cardiologist near Walnut Creek, CA.
What does a Cardiologist do?
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.
Is this Dr. Hennessey Tseng affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Tseng is affiliated with John Muir Health Walnut Creek Medical Center, John Muir Health Concord Medical Center, Sutter Santa Rosa Regional Hospital, Stanford Health Care - Valleycare, Sutter Delta Medical Center, Alta Bates Summit Medical Center - Summit Campus which are a Castle Connolly Top Hospitals. 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
When to see a Cardiologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Cardiologist. Explore 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 Hennessey Tseng accepting new patients in Walnut Creek, CA?
Yes, Dr. Hennessey Tseng is accepting new patients at this time.
Does Dr. Hennessey Tseng offer online booking?
Please contact Dr. Tseng's office at (925) 937-1770 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Hennessey Tseng?
Please contact Dr. Tseng's office at (925) 937-1770 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Hennessey Tseng have?
Dr. Hennessey Tseng is certified by the American Board of Internal Medicine.
Other Cardiologist Near Walnut Creek, CA
JL
Cardiologist
Dr. Jason Liu, MD is a Cardiologist, who primarily practices in Walnut Creek, CA with 2 additional practice locations.
Walnut Creek, CA
CL
Cardiologist
Dr. Carolyn Lacey, MD is a Cardiologist, who primarily practices in Walnut Creek, CA with 1 additional practice location. She is board certified.
Walnut Creek, CA

Interventional Cardiologist
Dr. John Krouse, MD is an Interventional Cardiologist, who primarily practices in Walnut Creek, CA with 1 additional practice location.
Walnut Creek, CA