Lawrence M. Hwang, MD
NPI 1285894949ActiveIndividual· Family Medicine· Thousand Oaks, CA
Family Medicine (MD) in Thousand Oaks, California, trained at Saint Louis University School of Medicine (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $422,917 for 4,635 claims, against $227,743 paid for services in 2024. Abbvie Inc. was the largest of 28 companies reporting payments in 2025, $1,198 in all, mostly food and beverage.
Overview
| NPI | 1285894949 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 16, 2008 |
| Last updated in NPPES | Jul 7, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A104288 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 503 |
|---|---|
| Services billed | 5,527 across 51 procedure codes |
| Paid by Medicare | $227,743 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,635 · 11,159 30-day fills |
|---|---|
| Patients | 401 |
| Total drug cost | $422,917 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Family Practice |
Medical group
- Arroyo Oaks Medical Associates IncThousand Oaks, CA · 11 clinicians
Hospital affiliations
- Los Robles Hospital & Medical CenterThousand Oaks, CA
- Northridge Hospital Medical CenterNorthridge, CA
Other facilities
- 24-7 Quality Infusion and Home Health IncHome health agency · Westlake Village, CA
- Access Tlc Home Health CareHome health agency · San Fernando, CA
- Assisted Home CareHome health agency · Mission Hills, CA
Industry payments (Open Payments)
- 2025$1,198 · 61 payments from 28 companies
- 2024$1,355 · 62 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $142.38 | 9 |
| Sumitomo Pharma America, Inc. | $115.55 | 2 |
| Amgen Inc. | $99.63 | 4 |
| Pfizer Inc. | $84.59 | 5 |
| Novartis Pharmaceuticals Corporation | $67.89 | 4 |
What the 2025 payments were for
- Food and Beverage$1,198 · 61 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 56 family medicine physicians in Thousand Oaks · All family medicine physicians in California