Affiliated with a Castle Connolly Top Hospital
Who is Dr. Lai, Cardiologist in Fairfield, CT?
Castle Connolly Top Doctor
Castle Connolly Top Doctors are doctor-nominated and selected by a physician-led research team.
What are Areas of Expertise for Dr. Lai?
Dr. Ashton Lai, MD, PHD is a highly-rated, board-certified Cardiologist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Lai empowers patients to confidently navigate their health journey, specializing in Cardiac CT Scanning, Echocardiography, Nuclear Cardiology, and comprehensive wellness support. Serving the Fairfield, CT community, Dr. Lai is dedicated to enhancing lives through expert, patient-centered care.
What languages does Dr. Lai speak?
Dr. Lai and their clinical team can communicate with patients in the following languages:
- English
What conditions does a Cardiologist like Dr. Lai typically treat?
As a Cardiologist, Dr. Lai 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. Lai. 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:
- Atrial Fibrillation
- Premature Ventricular Contractions
- Heart Palpitations
- Arrhythmia
- Afib
- A-fib
- Irregular heart rhythm
- PVCs
- Ventricular Ectopic Beats
- Skipped Heartbeat (Ventricular)
- Persistent atrial fibrillation
- Skipped Heartbeat
- Fluttering Heart
- Pounding Heart
ICD-10 Codes:
- I480: Paroxysmal atrial fibrillation
- I493: Ventricular premature depolarization
- I4819: Other persistent atrial fibrillation
- R002: Palpitations
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:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Thoracic Aortic Widening
- Dilated Thoracic Aorta
- Thoracic Aortic Dilation
- Enlarged Chest Aorta
ICD-10 Codes:
- I77810: Thoracic aortic ectasia
What procedures does a Cardiologist like Dr. Lai typically perform?
As a Cardiologist, procedures performed by Dr. Ashton Lai 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
Please contact Dr. Lai's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Lai accept my insurance?
Dr. Lai accepts most major insurance plans. Important: Please call our office at (203) 292-2000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Lai accept in Fairfield, CT?
Dr. Lai in Fairfield, CT accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Cigna Group
Corporate Services
Federal government of the United States
Globe Life
Humana
Medicare
Mutual of Omaha
Point32Health
State of Connecticut
UnitedHealth Group
View All Insurances
Where is Dr. Lai's office located?
What hospitals are Dr. Lai affiliated with?
Castle Connolly Top Hospital
This doctor is affiliated with a Castle Connolly Top Hospital.
Dr. Lai has admitting privileges at the following hospitals:

Ranked Cancer Surgery
Ranked in 3 Procedures
What is Dr. Lai's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Lai's National Provider Identifier (NPI) number is 1386131134.
What common questions do patients ask about Dr. Lai?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Lai