Homer Kam Yun Lew, D.O.
NPI 1154452142ActiveIndividual· Internal Medicine· Laguna Hills, CA
Internal Medicine (D.O.) in Laguna Hills, California, trained at College of Osteo Med of the Pacific at Pomona (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $589,263 for 9,178 claims, against $108,847 paid for services in 2024. Amgen Inc. was the largest of 9 companies reporting payments in 2025, $289.55 in all, mostly food and beverage.
Overview
| NPI | 1154452142 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Mar 8, 2007 |
| Last updated in NPPES | Aug 20, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A7156 | 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 | 204 |
|---|---|
| Services billed | 1,564 across 36 procedure codes |
| Paid by Medicare | $108,847 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,178 · 16,631 30-day fills |
|---|---|
| Patients | 471 |
| Total drug cost | $589,263 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | College of Osteo Med of the Pacific at Pomona |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
- Providence Mission HospitalMission Viejo, CA
Other facilities
- Care Plus Home HealthHome health agency · Laguna Hills, CA
- Lorian HealthHome health agency · Long Beach, CA
- Prime Care Services, IncHome health agency · Van Nuys, CA
- Apex Hospice Care, IncHospice · Santa Ana, CA
- Laguna Hills Health and Rehabilitation CenterNursing home · Laguna Hills, CA
- Palm Terrace Healthcare & Rehabilitation CenterNursing home · Laguna Hills, CA
- Regents Point - WindcrestNursing home · Irvine, CA
Industry payments (Open Payments)
- 2025$289.55 · 15 payments from 9 companies
- 2024$281.32 · 14 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $105.12 | 6 |
| Exact Sciences Corporation | $32.66 | 1 |
| Astrazeneca Pharmaceuticals LP | $30.79 | 2 |
| Lilly USA, LLC | $23.71 | 1 |
| Otsuka America Pharmaceutical, Inc. | $23.38 | 1 |
What the 2025 payments were for
- Food and Beverage$289.55 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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