Joshua Chia-Hwa Chen, D.O.
NPI 1750745873ActiveIndividual· Internal Medicine, Infectious Disease· Newport Beach, CA
Internal Medicine, Infectious Disease (D.O.) with Southern California Id Associates Inc, practicing in Newport Beach, California. Their prescriptions cost Medicare Part D more than their services did: $324,601 for 621 claims, against $192,112 paid for services in 2024. Viiv Healthcare Company was the largest of 8 companies reporting payments in 2025, $1,038 in all, mostly food and beverage. Lists Hoag Memorial Hospital Presbyterian and 1 other hospital as hospital affiliations.
Overview
| NPI | 1750745873 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Apr 6, 2016 |
| Last updated in NPPES | Aug 19, 2022 |
| Certified by provider | Aug 19, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 20A16292 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 342 |
|---|---|
| Services billed | 1,611 across 23 procedure codes |
| Paid by Medicare | $192,112 |
Part D prescriptions in 2024
| Prescriptions (claims) | 621 · 786 30-day fills |
|---|---|
| Patients | 183 |
| Total drug cost | $324,601 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Southern California Id Associates IncNewport Beach, CA · 5 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Uci Health-OrangeOrange, CA
Other facilities
- Hoag Home HealthHome health agency · Newport Beach, CA
Industry payments (Open Payments)
- 2025$1,038 · 44 payments from 8 companies
- 2024$839.27 · 39 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $344.42 | 15 |
| Gilead Sciences, Inc. | $243.87 | 10 |
| Aimmune Therapeutics, Inc. | $163.33 | 7 |
| Paratek Pharmaceuticals, Inc. | $114.47 | 4 |
| Insmed, Inc. | $69.03 | 3 |
What the 2025 payments were for
- Food and Beverage$1,038 · 44 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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