Annie Chen, MD
NPI 1043771173ActiveIndividual· Internal Medicine, Pulmonary Disease· Irvine, CA
Internal Medicine, Pulmonary Disease (MD) with City of Hope Medical Foundation, practicing in Irvine, California. Part D covered 83 prescriptions written in 2024, 48% of them generic. Merck Sharp & Dohme LLC was the largest of 2 companies reporting payments in 2025, $38.66 in all, mostly food and beverage.
Overview
| NPI | 1043771173 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 29, 2019 |
| Last updated in NPPES | Sep 24, 2025 |
| Certified by provider | Sep 24, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | A179927 | CA |
| Internal Medicine, Critical Care Medicine | 207RC0200X | A179927 | 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 - Pulmonary Disease (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 83 · 139 30-day fills |
|---|---|
| Patients | 15 |
| Total drug cost | $11,097 |
| Generic share | 48% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
| Telehealth | Offers telehealth |
Medical group
- City of Hope Medical FoundationDuarte, CA · 982 clinicians
Industry payments (Open Payments)
- 2025$38.66 · 2 payments from 2 companies
- 2024$13.98 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $23.07 | 1 |
| Paratek Pharmaceuticals, Inc. | $15.59 | 1 |
What the 2025 payments were for
- Food and Beverage$38.66 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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