Lanny Lai Hsieh, MD
NPI 1184828444ActiveIndividual· Hospitalist· Orange, CA
Hospitalist (MD) in Orange, California, trained at New York University School of Medicine (class of 1999). In 2024 Medicare paid $44,834 for 210 patients, and Part D covered 53 of their prescriptions, 87% of them generic.
Overview
| NPI | 1184828444 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 12, 2007 |
| Last updated in NPPES | Nov 30, 2023 |
| Certified by provider | Nov 30, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | A74172 | CA |
| Internal Medicine | 207R00000X | A74172 | CA |
| Internal Medicine, Infectious Disease | 207RI0200X | A74172 | 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 - Infectious Disease (CA); Practitioner - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 210 |
|---|---|
| Services billed | 460 across 16 procedure codes |
| Paid by Medicare | $44,834 |
Part D prescriptions in 2024
| Prescriptions (claims) | 53 · 73 30-day fills |
|---|---|
| Patients | 22 |
| Total drug cost | $10,037 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Infectious Disease |
Medical group
- The Regents of the University of California-IrvineOrange, CA · 125 clinicians
Hospital affiliation
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 82 hospitalists in Orange · All hospitalists in California