Quick answers
- Does Wai-Hang J. Lam accept Medicare assignment?
- Yes. Medicare's clinician data says Wai-Hang J. Lam accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Wai-Hang J. Lam see?
- In 2024, CMS data shows 225 Original Medicare patients and 1,898 services for Wai-Hang J. Lam. This counts Original Medicare only and measures volume, not quality.
- What is Wai-Hang J. Lam's NPI number?
- 1063669224. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Wai-Hang J. Lam, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 225 |
|---|---|
| Services billed to Medicare | 1,898 |
| Different services or procedures | 43 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)283 services
- Blood test, lipids (cholesterol and triglycerides) (80061)234 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test (85027)155 services
- Liver enzyme (sgpt), level (84460)150 services
- Blood test, basic group of blood chemicals (calcium, total) (80048)146 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure74%
- High cholesterol74%
- Diabetes35%
- Arthritis28%
- Chronic kidney disease26%
- Osteoporosis19%
Hospitals where Wai-Hang J. Lam works
Medicare's Facility Affiliation Data lists Wai-Hang J. Lam at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050047
- Zuckerberg San Francisco General Hospital & Trauma CenterSan Francisco, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050228
Practice locations
Addresses where Wai-Hang J. Lam is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 11; the Medicare profile lists all.
- 100 S San Mateo DrSan Mateo, CA 94401 (650) 696‑5400
- 1033 Clement StSan Francisco, CA 94118 (415) 391‑9686
- 123 S San Mateo DrSan Mateo, CA 94401 (650) 343‑4200
- 1400 Noriega StSan Francisco, CA 94122 (415) 391‑9686
- 1422 Noriega StSan Francisco, CA 94122 (415) 391‑9686
Group practices
Medicare enrollment lists Wai-Hang J. Lam as a member of these groups (CMS data updated October 2, 2026).
- Sutter Bay Medical Foundation3,829 clinicians in the group
- North East Medical Services143 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in San Mateo
Clinicians with the same Medicare primary specialty in San Mateo, CA — not a recommendation.
Other clinicians in Sutter Bay Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2004 (22 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063669224 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians