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James Ong, M.D., F.A.C.C., President and Medical Director
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1980-1984 |
Bachelor in
Biochemistry, U.C. Berkeley, graduated with honor. |
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1984-1989 |
Doctor of
Medicine, U.C.
San Diego |
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1989-1992 |
Internship
and Residency in Internal Medicine, UCLA./West
Los Angeles VA Program. Selected as Solomon Scholar. |
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1992-1995 |
Fellowship in
cardiology, Cedars-Sinai
Medical Center. Received Eliot Corday
Fellowship. |
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1995-1996 |
Fellowship in
Cardiac Electrophysiology, Cedars-Sinai
Medical Center. Awarded
American College of Cardiology Merck Fellowship. |
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1996-1997 |
Faculty attending physician,
Cedars-Sinai Medical Center. Awarded American Heart Association Grant
to study atrial fibrillation. |
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1996-1997 |
Clinical
Assistant Professor, UCLA/Cedars-Sinai
Medical Center - Awarded grant from National Institute of Health to study
atrial fibrillation. |
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1997-1998 |
Director of Electrophysiology,
Encino-Tarzana Regional Medical Center |
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1998-date |
Director of Electrophysiology,
Northridge Medical Center |
| 2004-date |
Founder
and Director, Valley Regional
Arrhythmia Center |
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A board-certified Cardiac Electrophysiologist, Dr.
Ong has been performing complex procedures for arrhythmias since 1993. He began his practice in the San Fernando Valley
in 1997, serving as the director of Electrophysiology at several
local Regional Medical Centers. His expertise
and passion are in the subspecialty area of Cardiac
Electrophysiology. He is among the highest-volume operators in
Greater Los Angeles area, having performed over 400
Electrophysiology procedures per year in 2005 and 2006.
Born in
Taiwan, Dr. Ong grew up in southern California and received all of his education
and training in the Golden State. He speaks fluent Mandarin
and Taiwanese and studied Latin as a foreign language. Dr. Ong completed his Cardiology and Cardiac
Electrophysiology Fellowship at
Cedars-Sinai Medical Center,
under the auspice of well known cardiologists like Jeremy Swan,
William Ganz, James Forrester, P.K Shah, C. Thomas Peter, and
Peng-Sheng Chen . On graduation from the program, he was
nominated to be a faculty physician whose job was to
conduct research in atrial fibrillation and to train young
physicians on how to perform procedures in Electrophysiology. He is the author of several
scientific manuscripts in the area of Cardiac
Electrophysiology, and in particular, on the subject of atrial
fibrillation. During his training and teaching career, he was the recipient of many awards
from NIH and AHA.
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Dr. Ong
performing mapping study for atrial fibrillation at Cedars-Sinai
Medical Center. |
In 1997, Dr. Ong came to San Fernando Valley to establish a comprehensive
Electrophysiology program at Encino-Tarzana Regional Medical Center
and Northridge Medical Center, caring for patients with arrhythmias ever
since that time.
As the director of Electrophysiology at
Encino-Tarzana Regional Medical Center, he helped build the program
into a state-of-the-art, high-volume Electrophysiology Center in the
Valley. He was responsible for upgrading the previous
recording system to a new Prucka/GE system, which
is still in use today. At his recommendation, the medical
center acquired a new
3-D mapping system in 2007 which will be used to
launch the atrial fibrillation ablation program.
Dr. Ong also helped build the Northridge Electrophysiology
Division by establishing the first
CRT-Biventricular Defibrillator
program in the Cardiac Catheterization Laboratory in San Fernando
Valley. He is one of the first local physicians to begin implanting
these devices, a new therapeutic modality that has dramatically improved
the quality of life for
many patients with severe
heart failure.
For Los Robles Medical Center in Thousand Oaks, Dr. Ong helped
introduced the new
3-D mapping system and started a new program
of complex radiofrequency ablation procedures. He was
the first physician to perform such a mapping procedure in Ventura
County.
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Dr. Ong
performing a Radiofrequency Ablation procedure. |
In 2004, anticipating the growing needs of subspecialty care for
patients with arrhythmias, Dr. Ong began a new chapter in his Electrophysiology career by founding Valley Regional Arrhythmia
Center, the first medical institution in San Fernando Valley
dedicated to the management of arrhythmias. The timely
establishment of this Center served a vital role in San Fernando and Conejo
Valley, providing a complete line of
diagnostic and therapeutic procedures for patients with arrhythmias.
It actively participates in many clinical researches in order to
further our understanding of arrhythmias and improve the care of
patients with these conditions.
Procedures that Dr. Ong routinely perform are 1)
Pacemaker
implantation, 2)
Defibrillator implantation, 3)
CRT-Biventricular Defibrillator implantation, 4)
SVT ablation,
5) VT ablation, 6)
Atrial Flutter ablation, 7)
Atrial Fibrillation ablation, and a
entire list of standard Electrophysiology non-invasive and invasive
procedures.
Specialty
Board Certification. (http://www.abim.org/who/index.shtm)
American Board of Internal Medicine,
certified in Internal Medicine, 1992-2015
American Board of Internal Medicine,
certified in
Cardiovascular Diseases, 1995-2015
American Board of Internal Medicine,
certified in Clinical
Cardiac Electrophysiology, 1996-2016
Professional Membership
Fellow,
American College of Cardiology,
1997-date
Member,
Heart Rhythm Society,
1997-date
Fellow,
American College of Chest
Physician, 1997-8
Select Lectures and Presentations
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Date |
Lecture Location |
Lecture Title |
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9/17/1997 |
Posto, Sherman Oaks |
Non-pharmacological
Management of Arrhythmias |
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12/15/1998 |
Henry Mayo Medical
Center |
Current Management
of Ventricular Tachyarrhythmias |
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4/15/1999 |
Encino Medical
Center |
State of the Art in
Electrophysiology: Can Electricity Bring
Good Things to Life? |
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6/1999 |
Fess Parker's,
Santa Barbara |
Dizziness, Seizure,
and Broken Hips: What do they have in Common? |
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7/1/1999 |
Tarzana Medical
Center |
Pitfalls in EKG
Interpretation |
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7/7/1999 |
Tarzana Medical
Center |
Electrophysiology
for Primary Care Physicians |
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7/26/1999 |
Topanga Canyon Mall |
Irregular
Heartbeat: The Link Between Fainting and Sudden Death |
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7/30/1999 |
Tarzana ER
Physicians |
Pacemaker and
Defibrillators |
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8/5/1999 |
Tarzana Medical
Center |
Syncope |
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9/14/1999 |
Motion Picture
Hospital |
Drug-Free Treatment
for Irregular Heartbeats |
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11/21/1999 |
Chinese Baptist
Church |
Heart Disease
Prevention |
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2/21/2000 |
Mid Valley
Gymnasium |
Irregular
Heartbeats in Children and Adults |
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5/30/2000 |
Northridge Medical
Center |
Case Studies in EP:
Is it VT or SVT |
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8/25/2000 |
Fess Parker's, Santa Barbara |
Case Presentation
in EP: When Should you Call your EP Buddies? |
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11/30/2000 |
Lancaster Community
Med Center |
Dizziness, Seizure, and Broken
Hips: What do they have in Common? |
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3/20/2001 |
Northridge Medical Center |
Syncope |
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9/4/2001 |
Northridge Medical Center |
Atrial
Fibrillation: When, Who, and How? |
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7/20/2002 |
Chinese
Baptist Church, San Diego |
An Overview of
Cardiovascular Diseases in the Elderly |
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4/13/2002 |
Chinese Physician
Society Meeting |
An Overview of
Cardiac Electrophysiology: What Can Electricity do for you? |
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9/24/2004 |
Northridge Medical Center |
Biventricular
Pacemaker and Defibrillator: Cardiac Resynchronization |
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11/4/2004 |
West Hills Medical
Center |
An Overview of
Cardiac Electrophysiology |
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1/6/2005 |
Henry Mayo Medical Center |
Dizziness, Seizure, and Broken
Hips: What do they have in Common? |
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3/1/2006 |
Cardiology
Grandround: Antelope Valley
Medical Center |
Implantable Loop
Recorder in the Evaluation of Arrhythmia Patients |
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6/17/2005 |
Fess Parker's,
Santa Barbara |
Electrophysiology
for Dummies |
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8/19/2005 |
West Hills Medical
Center |
What is new in
Cardiac Electrophysiology? |
Select
Publications (click
here for a complete list of
publications)
| 1 |
Ong
JJC, Sarma JSM, Venkataraman K, Levin SR, Singh BN. Circadian
Rhythmicity of Heart Rate and QTc Interval in Diabetic Autonomic
Neuropathy: Implications for the Mechanism of Sudden Death. American
Heart Journal 1993;125:744-52. |
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2 |
Ong
JJC, Hsu PC, Lin L, Yu A, Kass RM, Peter CT, Swerdlow CD. Arrhythmias
Following Cardioverter-Defibrillator Implantation: Comparison
of Epicardial and Transvenous Systems. American Journal of Cardiology
1995;75:137-40. |
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3 |
Ong
JJC, Cha YM, Kriett JM, Boyce K, Feld GK, Chen P-S. The Relation
Between Atrial Fibrillation Wavefront Characteristics and Accessory
Pathway Conduction. Journal of Clinical Investigation 1995;96:2284-96. |
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4 |
Ong JJC,
Kriett JM, Feld GK, Chen P-S. Prevalence of Retrograde Accessory
Pathway Conduction During Atrial Fibrillation. Journal of
Cardiovascular Electrophysiology 1997;8(4);377-387.
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5 |
Chen
P-S, Wu T-J, Ikeda T, Ong JJC, Kim Y-H, Yashima M, Doshi R,
Hwang C, Karagueuzian HS: Focal source hypothesis of atrial
fibrillation.
J Electrocardiol.
1998;31 Suppl:32-4. |
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6 |
Doshi RN, Wu TJ, Yashima M, Kim YH,
Ong JJ, Cao JM, Hwang C, Yashar P, Fishbein MC,
Karagueuzian HS, Chen PS.
Relation between ligament of Marshall and
adrenergic atrial tachyarrhythmia.
Circulation.
1999 Aug 24;100(8):876-83.
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7 |
Wu TJ, Ong JJ, Chang CM,
Doshi RN, Yashima M, Huang HL, Fishbein MC, Ting CT,
Karagueuzian HS, Chen PS.
Pulmonary veins and ligament of Marshall as sources of
rapid activations in a canine model of sustained atrial
fibrillation.
Circulation. 2001 Feb
27;103(8):1157-63.
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Linda Tseng-Ong, M.D.
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1985-1986 |
Universite de Pau et
Universite de Paris, France |
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1982-1987 |
Bachelor of Arts, Bioengineering,
U.C.
San Diego |
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1987-1989 |
Oral Robert University,
School of Medicine |
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1989-1991 |
Doctor of Medicine, Loma
Linda University |
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1991-1993 |
Internship,
Medicine/Pediatrics Combined Program, Loma Linda University |
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1993-1995 |
Residency, Pediatrics,
U.C.L.A. |
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1995-1998 |
Fellowship, Pediatric
Neurology, U.C.L.A. |
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1998-1999 |
Fellowship, Neuromuscular
Diseases, U.C.L.A. |
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1999-date |
Assistant Clinical
Professor, Pediatric and Neurology, U.C.L.A. |
| 2000-date |
Assistant
Clinical Professor, Pediatrics and Neurology, University of
Southern California |
| 2006-date |
President,
Pediatric Neurology Group |
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As the vice President of Valley Regional
Arrhythmia Center, Dr. Tseng-Ong helps oversee the day-to-day operation of
the Center, but her professional interest is in the area of
Pediatric Neurology. She attended two medical schools, trained
in both Internal Medicine and Pediatrics, completed two
sub-specialty training fellowships, and has the title of Assistant
Professor at two Universities.
Dr. Tseng-Ong's most recent
tenure was a faculty physician at Children's
Hospital of Los Angeles, where she taught fellows and residents in
Pediatric Neurology and conducted research in this field. She
has published several scientific papers in this area.
In 2006, Dr. Tseng-Ong left academic
medicine to start private practice but continues to attend the
Muscular Dystrophy Clinic at UCLA, helping indigent patients with
severe neuromuscular disorders. In 2007,
she launched Pediatric Neurology Group in Tarzana to begin her
private practice seeing patients in Pediatric Neurology.
Dr. Tseng-Ong's specialty includes the area of 1)
Muscular Dystrophy, 2) Seizure, 3) Cerebral Palsy, 4) ADHD.
She is fluent in several foreign languages including Mandarin,
Taiwanese, Spanish, and French.
Specialty
Board Certification
American Board of
Pediatrics, certified in Pediatrics, 1995
American Board of Psychiatry and Neurology,
certified in Neurology with special qualification in Child
Neurology , 2000-2010
Professional Membership
Associate
Member, American Academy of Neurology
Associate Member, American
Academy of Pediatrics
Member, North America Taiwanese Medical Association
Select Lectures and Presentations
Office Staff
Jennifer McLean and Elaine Hernandez
are two indispensable staff members of Valley Regional Arrhythmia
Center. Their jobs include answering phones, scheduling
appointments, scheduling surgeries, checking in patients, obtaining
blood pressure, performing EKG, Holter monitor, treadmills,
Pro-time/INR, and answering all the questions you may have about
this office. They are experienced in contracting and dealing
with insurance companies for authorization and reimbursement.
Jennifer and Elaine play a vital and critical role in the operation
of the Center.

Office Locations
Office Hours:
| Monday |
9 am to 5 pm* |
| Tuesday |
9 am to 5 pm* |
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Wednesday |
9 am to 5 pm* |
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Thursday |
9 am to 5 pm* |
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Friday |
9 am to 5 pm* |
* Although the office is open during the above hours, please inquire
about the specific time that each physician attends in the clinic.
Languages Spoken:
English,
Spanish, French, Mandarin, and Taiwanese.
How to
Make an Appointment
Please click here for
information on making an appointment for consultation.
Hospital Affiliation:
Dr. Ong is on staff at most major hospitals and medical centers in San
Fernando and Conejo Valley.
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