Anthony Pongwai Lam, MD
NPI 1659502839ActiveIndividual· Internal Medicine· Tustin, CA
Internal Medicine (MD) in Tustin, California, trained at Albert Einstein College of Medicine of Yeshiva University (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $2,545,230 for 496 claims, against $54,332 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 31 companies reporting payments in 2025, $33,812 in all, mostly speaking and faculty fees.
Overview
| NPI | 1659502839 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 5, 2009 |
| Last updated in NPPES | Mar 3, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 254364 | NY |
| Internal Medicine | 207R00000X | A112245 | CA |
| Internal Medicine, Medical Oncology | 207RX0202X | A112245 | 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 - Medical Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 37 |
|---|---|
| Services billed | 2,548 across 25 procedure codes |
| Paid by Medicare | $54,332 |
Part D prescriptions in 2024
| Prescriptions (claims) | 496 · 680 30-day fills |
|---|---|
| Patients | 82 |
| Total drug cost | $2,545,230 |
| Generic share | 50% of claims |
Education and affiliations
| Medical school | Albert Einstein College of Medicine of Yeshiva University |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Shapiro Stafford Yee and Polonsky PCCovina, CA · 3 clinicians
Industry payments (Open Payments)
- 2025$33,812 · 147 payments from 31 companies
- 2024$8,082 · 94 payments from 24 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $31,009 | 29 |
| Janssen Biotech, Inc. | $623.97 | 24 |
| Glaxosmithkline, LLC. | $311.19 | 12 |
| Astrazeneca Pharmaceuticals LP | $271.77 | 16 |
| Incyte Corporation | $179.97 | 4 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$17,102 · 5 payments
- Consulting Fee$8,121 · 2 payments
- Travel and Lodging$5,026 · 14 payments
- Food and Beverage$3,463 · 125 payments
- Education$99.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine providers in Tustin
- 1457715682
- 1790019370
- 1528689965
- 1164782421
- 1710020805
- 1992414890
- 1720256415
- 1518968098
- 1033662101
- 1518232081
- 1689633125
- 1881776326