James J. Ong, M.D.
NPI 1912955980ActiveIndividual· Specialist· Tarzana, CA
Specialist (M.D.) in Tarzana, California, trained at University of California, San Diego School of Medicine (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $1,596,574 for 2,384 claims, against $917,832 paid for services in 2024. Medtronic, Inc. was the largest of 19 companies reporting payments in 2025, $7,532 in all, mostly food and beverage.
Overview
| NPI | 1912955980 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 4, 2006 |
| Last updated in NPPES | Aug 24, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | G70354 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiac Electrophysiology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 812 |
|---|---|
| Services billed | 8,947 across 68 procedure codes |
| Paid by Medicare | $917,832 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,384 · 5,423 30-day fills |
|---|---|
| Patients | 349 |
| Total drug cost | $1,596,574 |
| Generic share | 60% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Cardiac Electrophysiology |
| Telehealth | Offers telehealth |
Hospital affiliations
- Los Robles Hospital & Medical CenterThousand Oaks, CA
- Northridge Hospital Medical CenterNorthridge, CA
- Providence Cedars Sinai Tarzana Medical CenterTarzana, CA
- St Johns Regional Medical CenterOxnard, CA
Industry payments (Open Payments)
- 2025$7,532 · 122 payments from 19 companies
- 2024$4,485 · 145 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $3,988 | 43 |
| Abbott Laboratories | $1,990 | 19 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $286.10 | 13 |
| Boston Scientific Corporation | $212.77 | 6 |
| E.R. Squibb & Sons, L.L.C. | $171.90 | 7 |
What the 2025 payments were for
- Food and Beverage$4,874 · 113 payments
- Travel and Lodging$1,409 · 7 payments
- Consulting Fee$1,250 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 57 Specialist providers in Tarzana · All Specialist providers in California