Julie Lam, M.D.
NPI 1144494659ActiveIndividual· Internal Medicine· Sylmar, CA
Internal Medicine (M.D.) with R. Ruiz MD A Professional Corporation, practicing in Sylmar, California. Part D covered 720 prescriptions written in 2024, 84% of them generic. Glaxosmithkline, LLC. was the largest of 3 companies reporting payments in 2025, $66.51 in all, mostly food and beverage.
Overview
| NPI | 1144494659 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 15, 2008 |
| Last updated in NPPES | Feb 17, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A109728 | 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 - Internal Medicine (CA); Practitioner - Internal Medicine (GA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 720 · 1,510 30-day fills |
|---|---|
| Patients | 155 |
| Total drug cost | $66,115 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- R. Ruiz MD A Professional CorporationMontebello, CA · 3 clinicians
Industry payments (Open Payments)
- 2025$66.51 · 3 payments from 3 companies
- 2024$134.89 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $28.77 | 1 |
| Merck Sharp & Dohme LLC | $19.79 | 1 |
| Dexcom, Inc. | $17.95 | 1 |
What the 2025 payments were for
- Food and Beverage$66.51 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 104 internal medicine physicians in Sylmar · All internal medicine physicians in California