Jay E. Tiongson, M.D.
NPI 1609082312ActiveIndividual· Internal Medicine, Clinical Cardiac Electrophysiology· Mission Viejo, CA
Internal Medicine, Clinical Cardiac Electrophysiology (M.D.) in Mission Viejo, California, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $2,291,041 for 5,276 claims, against $653,976 paid for services in 2024. Abbott Laboratories was the largest of 15 companies reporting payments in 2025, $4,421 in all, mostly food and beverage.
Overview
| NPI | 1609082312 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 16, 2007 |
| Last updated in NPPES | Nov 11, 2021 |
| Certified by provider | Nov 11, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Clinical Cardiac Electrophysiology Primary | 207RC0001X | A91234 | CA |
| Internal Medicine | 207R00000X | A91234 | CA |
| Internal Medicine, Clinical Cardiac Electrophysiology | 207RC0001X | MD2010-0573 | NM |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 993 |
|---|---|
| Services billed | 7,122 across 83 procedure codes |
| Paid by Medicare | $653,976 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,276 · 11,911 30-day fills |
|---|---|
| Patients | 854 |
| Total drug cost | $2,291,041 |
| Generic share | 62% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Cardiac Electrophysiology |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
Medical group
- Providence Medical FoundationVictorville, CA · 1,466 clinicians
Hospital affiliation
- Providence Mission HospitalMission Viejo, CA
Industry payments (Open Payments)
- 2025$4,421 · 98 payments from 15 companies
- 2024$7,596 · 102 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $1,132 | 13 |
| Medtronic, Inc. | $677.22 | 15 |
| Biosense Webster, Inc. | $638.76 | 17 |
| Boston Scientific Corporation | $541.27 | 18 |
| Biotronik Inc. | $429.68 | 4 |
What the 2025 payments were for
- Food and Beverage$3,942 · 95 payments
- Travel and Lodging$479.39 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Clinical Cardiac Electrophysiology providers in Mission Viejo
- 1609852888
- 1326004748
All Internal Medicine, Clinical Cardiac Electrophysiology providers in California →