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Employment at Arrhythmia Center

Dr. Kusumoto


Dr. Kusumoto with a daughter of one of his patients who has an implantable defibrillator.

Walter Kusumoto M.D. M.P.H. graduated from St. Louis University Medical School in 1995 and completed his residency in Internal Medicine at U.C. Davis in 1998. He completed his cardiology and electrophysiology fellowship in 2002 at Oregon Health Sciences University. He also completed his Masters in Public Health in 2003. After several years of private practice in Colorado, he has founded the Arrhythmia Center of Northern California, and serves as the Electrophysiology Director for Enloe Medical Center. Dr. Kusumoto has performed more than 2500 electrophysiology procedures in his career, half of those being ablations and electrophysiology studies.

Arrhythmia Center of Northern California Staff

Annette Rowe

Annette Rowe is our office/operations manager at Arrhythmia Center. She is from Germany, and oversees the day to day operation of our clinic. She is dedicated to making the office run smoothly.

Liz Gibbs

Liz Gibbs is the billing specialist at the Arrhythmia Center. You can call her about questions in billing. She does a great job at dealing with various health insurance entities.

Debbie Wright

Debbie Wright is a medical assistant at Arrhythmia Center that performs EKG’s, takes vitals, and does Event and Holter Monitors hook ups.  She also schedules tests and in and outpatient procedures, along with the day to day running of the Arrhythmia Center.  Previously, she served almost 20 years in the U.S. military.

Nancy Mcghee

Nancy Mcghee is a medical assistant at Arrhythmia Center, who performs ECGs, blood pressure measurements, and performs refills on medications.  She has previously worked for the oncology service, and is now helping in the day to day running of Arrhythmia Center. 

Julianne Folger

Julianne Folger is the manager of our human resources needs.  She oversees our policies and procedures along with the payroll processing.   She enjoys working out and spending time with her children.

Natalie Frost

Natalie Frost is a receptionist at Arrhythmia Center.  She registers patients and assists in administrative tasks.  She is a student at Butte College and Captain of the women’s soccer team

Stephanie Marquez

Stephanie Marquez is a receptionist at Arrhythmia Center.  She registers patients and assists in administrative tasks.  Currently she is a Butte College student where she is studying to become an ultrasound technician.

Bethany Garretson

Bethany Garretson, R.N., a graduate of CSUC and American River College, brings ten years of nursing experience to the Arrhythmia Center.  In addition, Bethany continues to be a critical care nurse for Enloe Hospital.   She enjoys spending time with her three young boys.

Hospital Staff

Our stellar core electrophysiology team. From left to right is Michael Harper, Dr. Walter Kusumoto, Cary Lieberum, and Prem Dutt. The electrophysiology team specializes in electrophysiology studies, mapping, ablation and transeptal punctures. Other staff members of the cardiac catheterization assist in placement of pacemakers, implantable cardiac defibrillators, and biventricular devices.

Michael Harper and Carey Lieberum take a patient off the table following a successful ablation. Our patient also saying hello for the camera.



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