Walter Lam, MD
Student in an Organized Health Care Education/Training Program (MD) with Ochsner Clinic LLC, practicing in New Orleans, Louisiana. Their prescriptions cost Medicare Part D more than their services did: $43,692 for 219 claims, against $11,454 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 6 companies reporting payments in 2025, $294.54 in all, mostly food and beverage. Lists Ochsner Medical Center Acute as a hospital affiliation.
Overview
| NPI | 1629631643 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 16, 2019 |
| Last updated in NPPES | Apr 16, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Student in an Organized Health Care Education/Training Program Primary | 390200000X | — | — |
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 - Nephrology (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 57 |
|---|---|
| Services billed | 163 across 9 procedure codes |
| Paid by Medicare | $11,454 |
Part D prescriptions in 2024
| Prescriptions (claims) | 219 · 469 30-day fills |
|---|---|
| Patients | 91 |
| Total drug cost | $43,692 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nephrology |
Medical group
- Ochsner Clinic LLCNew Orleans, LA · 2,864 clinicians
Hospital affiliation
- Ochsner Medical Center AcuteNew Orleans, LA
Industry payments (Open Payments)
- 2025$294.54 · 13 payments from 6 companies
- 2024$1,013 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $86.13 | 4 |
| Astrazeneca Pharmaceuticals LP | $65.24 | 3 |
| Akebia Therapeutics Inc | $49.60 | 2 |
| Otsuka America Pharmaceutical, Inc. | $40.66 | 2 |
| Travere Therapeutics, Inc. | $27.72 | 1 |
What the 2025 payments were for
- Food and Beverage$294.54 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 1,322 Student in an Organized Health Care Education/Training Program providers in New Orleans · All Student in an Organized Health Care Education/Training Program providers in Louisiana