JAMES J ONG (M.D.) – Specialist, NPI 1912955980
Specialist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
313 CARDIAC ELECTROPHYSIOLOGY in CA
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Provider Addresses for JAMES J ONG (M.D.)
18372, Clark Street, Tarzana Safari Walk, Tarzana, Los Angeles, Los Angeles County, California, 91356, United States
SUITE 218
TARZANA, CA 913563508
Phone: (818) 342-5377
Fax: (818) 996-9378
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 278 Open Payments records for all available years, with a total value of $9,247.
Total Amount is formed as General ($9,247) + Research ($0) + Ownership ($0) = $9,247.
Last reported payment date: 2024-12-17 • Largest payer in this snapshot: Biosense Webster, Inc. ($2,743).
Total Amount
$9,247
General + Research + Ownership
Payments
278
Total payment records
General Amount
$9,247
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Biosense Webster, Inc. | $2,743 |
| Medtronic, Inc. | $2,340 |
| Abbott Laboratories | $1,141 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $430 |
| AstraZeneca Pharmaceuticals LP | $247 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-05-19
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040519000930 | I | Cardiac Electrophysiology | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| G2066 | Interrogation device evaluation(s), (remote) up to 30 days; implantable cardiovascular physiologic monitor system, implantable loop recorder system, or subcutaneous cardiac rhythm monitor system, remote data acquisition(s), receipt of transmissions and tec | 1,369 | 204 | $0 |
| 93000 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 1,087 | 539 | $0 |
| 93298 | Evaluation of cardiac rhythm monitor system, remote up to 30 days | 1,054 | 147 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 865 | 451 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 675 | 460 | $0 |
Insurance plans in this area (ZIP 91356)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CARDIAC ELECTROPHYSIOLOGY | CA | 85610 | Blood test, clotting time | 254 | 51 |
| CARDIAC ELECTROPHYSIOLOGY | CA | 93280 | Evaluation, testing, and programming adjustment of permanent dual lead pacemaker system with physician analysis, review, and report | 279 | 141 |
| CARDIAC ELECTROPHYSIOLOGY | CA | 93284 | Evaluation, testing and programming adjustment of defibrillator with analysis, review and report | 177 | 70 |
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