William G. Lang, M.D.
NPI 1366455842ActiveIndividual· Internal Medicine· Marina Del Rey, CA
Internal Medicine (M.D.) with Cedars-Sinai Medical Care Foundation, practicing in Marina Del Rey, California. Their prescriptions cost Medicare Part D more than their services did: $370,091 for 3,775 claims, against $32,927 paid for services in 2024. Lists Cedar-Sinai Marina del Rey Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1366455842 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 14, 2006 |
| Last updated in NPPES | Oct 3, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A41887 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 164 |
|---|---|
| Services billed | 674 across 30 procedure codes |
| Paid by Medicare | $32,927 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,775 · 8,918 30-day fills |
|---|---|
| Patients | 349 |
| Total drug cost | $370,091 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Cedars-Sinai Medical Care FoundationWest Hollywood, CA · 1,692 clinicians
Hospital affiliations
- Cedar-Sinai Marina del Rey HospitalMarina Del Rey, CA
- Cedars-Sinai Medical CenterLos Angeles, CA
- Torrance Memorial Medical CenterTorrance, 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 26 internal medicine physicians in Marina Del Rey · All internal medicine physicians in California