Rapid diagnosis of heart conditions
State-of-the-art diagnostic technology is designed for rapid diagnosis of heart conditions. Reliable and timely results assist your physician in making the best treatment recommendations for you. Northbay Health offers a full range of cardiac diagnostic services including:
12-lead EKG
A test that records the electrical activity of the heart, shows abnormal rhythms (arrhythmias) and can sometimes detect heart muscle damage.
Heart cath (cardiac catheterization)
A test in which a small catheter (hollow tube) is guided through the large artery in the upper leg, or sometimes the wrist or arm, into the heart. Dye is given through the catheter, and moving X-ray pictures are made as the dye travels through the heart. This comprehensive test shows narrowing in the arteries, heart chamber size, pumping ability of the heart, and ability of the valves to open and close, as well as a measurement of the pressures within the heart chambers and arteries.
Echo (echocardiogram)
A noninvasive test that uses sound waves to evaluate the heart’s chambers and valves. The echo sound waves create an image on the monitor as an ultrasound probe is passed over the heart.
TEE (transesophageal echocardiogram)
A test in which a small probe, about the size of a little finger, is swallowed and passed down the esophagus.
Treadmill stress testing
A test that is given while a person walks on a treadmill or pedals a stationary bike to monitor the heart during exercise. Breathing and blood pressure rates are also monitored. A stress test may be used to detect coronary artery disease, and/or to determine safe levels of exercise following a heart attack or heart surgery.
EHAC (Early Heart Attack Care)
The American College of Cardiology has partnered with Northbay Health to build an online education tool for our community regarding EHAC (Early Heart Attack Care). Register for this free course today and learn how early recognition can save hearts!
Find a trusted cardiologist near you
View providers specializing in cardiology, cardiothoracic surgery (heart surgery) and vascular surgery.

Jeffrey Breneisen, MD
Cardiology, Interventional Cardiology

Ho-Hin Choy, MD
Cardiology, Interventional Cardiology

Milind Dhond, MD
Cardiology, Interventional Cardiology

Leila Ganjehei, MD
Cardiology

Saba Lahsaei, MD
Cardiology, Interventional Cardiology

John Loftus, MD
Vascular Surgery

Melissa Loja, MD
Vascular Surgery, Vascular and Endovascular Surgery

Shea Pribyl, DO
Cardiothoracic Surgery (Heart Surgery)

Adam Tibble, MD
Cardiac Anesthesia

Mark Villalon, MD
Cardiology, Interventional Cardiology

Takara Dickson, PA
Advanced Health Practitioner, Vascular Surgery

Judith Flandez, PA-C
Advanced Health Practitioner, Vascular Surgery

Sarah DiGeorge, NP
Cardiology, Advanced Health Practitioner

Edgardo Galera, NP
Cardiology, Advanced Health Practitioner

Roni-Jo Naval, NP
Cardiology, Advanced Health Practitioner

Rebecca Parker, NP
Cardiology, Advanced Health Practitioner
Locations
Appointments are available from 8 am–5 pm from Mon–Fri.
Heart & Vascular: call 707-646-4400.
Vascular and Cardiothoracic Surgery: call 707-646-4414.
Northbay Health Vascular and Cardiothoracic Surgery
2458 Hilborn Road, Fairfield, CA 94534 | 707-646-4414
Northbay Health Heart & Vascular – Fairfield
2458 Hilborn Road, Fairfield, CA 94534 | 707-646-4400
Northbay Health Heart & Vascular – Vacaville
1020 Nut Tree Road, Suite 290, Vacaville, CA 95687 | 707-646-4400








