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Dr. Alexander H. Lam

Interventional Radiology (Vascular & Interventional Radiology Physician)

  • Medicare participating

At a glance

Years since graduation
13
In the NPI registry since
2011
Medicare patients seen, 2024
399

Licensed in California since 2014, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is

Education and training

  • 2013Medical school: University of California, Davis School of Medicine
  • 2011Registered with an NPI (national billing number; not a license date)

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Vascular & Interventional Radiology Physician primary
    CA license A133408 (first issued 2014; current)

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Interventional Radiology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
399
Services billed
1,365
Patients’ average age
71
Most frequent Medicare services, 2023
ServiceTimesPatients
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes125111
Ultrasonic guidance for blood vessel access6864
Fluoroscopic guidance for insertion or removal of central vein access device5756
Drainage of fluid from abdominal cavity using imaging guidance4825
Review by radiologist of image for replacement of stomach or large bowel tube4024
Exchange of abdominal cavity drainage tube using imaging guidance3420
Replacement of kidney drainage tube using imaging guidance with review by radiologist2519
Review by radiologist of ct guidance for needle placement2020
Insertion of tube for infusion with imaging guidance and review by radiologist, patient 5 years or older1919
Insertion of central venous tube with port (5 years or older)1919

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Payments from drug and device companies

In 2025, 4 companies reported 23 payments worth $851 in total to this clinician.

By company
Boston Scientific Corporation$592
Terumo Medical Corporation$121
Abbott Laboratories$92.44
Stryker Corporation$45.64
By type
Food and Beverage$851

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in California →

Other Interventional Radiology clinicians in San Francisco

Sources

NPI registry (CMS NPPES, November 2026; record last updated January 27, 2020), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1316231780. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.