Ian Yee-On Lam, MD
NPI 1518169580ActiveIndividual· Internal Medicine, Nephrology· Mountain View, CA
Internal Medicine, Nephrology (MD) in Mountain View, California, trained at Saint Louis University School of Medicine (class of 2000). In 2024 Medicare paid $230,150 for 417 patients, and Part D covered 2,840 of their prescriptions, 89% of them generic. Calliditas Therapeutics US Inc. was the largest of 2 companies reporting payments in 2025, $159.31 in all, mostly food and beverage.
Overview
| NPI | 1518169580 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 1, 2007 |
| Last updated in NPPES | Dec 22, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A77204 | CA |
| Internal Medicine | 207R00000X | A77204 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 417 |
|---|---|
| Services billed | 7,192 across 21 procedure codes |
| Paid by Medicare | $230,150 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,840 · 7,358 30-day fills |
|---|---|
| Patients | 334 |
| Total drug cost | $338,084 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Hospital affiliations
- El Camino HealthMountain View, CA
- Stanford Health CareStanford, CA
Other facilities
- Shc Mountain ViewDialysis facility · Mountain View, CA
- Shc North SunnyvaleDialysis facility · Sunnyvale, CA
- Shc Stevens CreekDialysis facility · San Jose, CA
- Shc Wb Mountain ViewDialysis facility · Mountain View, CA
Industry payments (Open Payments)
- 2025$159.31 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $124.98 | 1 |
| Medtronic, Inc. | $34.33 | 1 |
What the 2025 payments were for
- Food and Beverage$159.31 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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