Rex Francis Tjoa, NP
NPI 1568979417ActiveIndividual· Nurse Practitioner· Long Beach, CA
Nurse Practitioner (NP) with Memorialcare Medical Foundation, practicing in Long Beach, California. Their prescriptions cost Medicare Part D more than their services did: $669,018 for 3,229 claims, against $48,008 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 12 companies reporting payments in 2025, $1,379 in all, mostly food and beverage. Lists Memorialcare Long Beach Medical Center as a hospital affiliation.
Overview
| NPI | 1568979417 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Jan 1, 2018 |
| Last updated in NPPES | Apr 28, 2026 |
| Certified by provider | Apr 28, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | NP95007349 | CA |
| Nurse Practitioner, Community Health | 363LC1500X | NP95007349 | CA |
| Nurse Practitioner, Family | 363LF0000X | NP95007349 | CA |
| Nurse Practitioner, Primary Care | 363LP2300X | NP95007349 | 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 - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 426 |
|---|---|
| Services billed | 1,127 across 19 procedure codes |
| Paid by Medicare | $48,008 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,229 · 7,936 30-day fills |
|---|---|
| Patients | 594 |
| Total drug cost | $669,018 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Memorialcare Medical FoundationLong Beach, CA · 566 clinicians
Hospital affiliation
- Memorialcare Long Beach Medical CenterLong Beach, CA
Industry payments (Open Payments)
- 2025$1,379 · 25 payments from 12 companies
- 2024$1,452 · 36 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $266.87 | 3 |
| Novo Nordisk Inc | $236.81 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $172.35 | 3 |
| Inspire Medical Systems, Inc. | $123.17 | 1 |
| Novartis Pharmaceuticals Corporation | $120.58 | 5 |
What the 2025 payments were for
- Food and Beverage$1,379 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 99 nurse practitioners in Long Beach · All nurse practitioners in California