Alexander Lam
NPI 1316231780 · Vascular & Interventional Radiology Physician · San Francisco, CA
Provider details
- NPI number
- 1316231780
- Entity type
- Individual
- Primary specialty
- Vascular & Interventional Radiology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A133408 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
548 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 115 | $13 |
| Drainage of Fluid From Abdominal Cavity Using Imaging Guidance49083 | 60 | $116 |
| Fluoroscopic Guidance for Insertion Or Removal of Central Vein Access Device77001 | 57 | $19 |
| Ultrasonic Guidance for Blood Vessel Access76937 | 55 | $15 |
| Review By Radiologist of Image for Replacement of Stomach Or Large Bowel Tube75984 | 23 | $41 |
| Review By Radiologist of Ct Guidance for Needle Placement77012 | 23 | $76 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$581 across 17 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-06-02
- Last updated
- 2020-01-27
- Certified
- 2020-01-27
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.