Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Warren Wai Lam, MEDICALDOCTOR

Individual provider Body Imaging Physician · NPI 1114917143

Dr. Warren Wai Lam, MEDICALDOCTOR practises Diagnostic Radiology in Pasadena, California. Graduated from Icahn School of Medicine at Mount Sinai in 1988, 38 years ago. Practices with Radiant Imaging Inc, a 67-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
38
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
CA
In the registry since
2005
Specialties on file
5
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

100 W California Blvd
Pasadena, CA 91105-3010 Not confirmed with CMS for 11 years — call before visiting
Phone: (626) 397-5139
Fax: (626) 447-1058
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence G76496 (CA)
Body Imaging Physician Taxonomy 2085B0100X · Licence G76496 (CA)
Nuclear Radiology Physician Taxonomy 2085N0904X · Licence G76496 (CA)
Vascular & Interventional Radiology Physician Taxonomy 2085R0204X · Licence G76496 (CA)
Diagnostic Ultrasound Physician Taxonomy 2085U0001X · Licence G76496 (CA)

Record details

NPI number1114917143
Entity typeIndividual (Type 1)
GenderMale
Credentials MEDICALDOCTOR
Sole proprietorNo
NPI enumeratedOctober 21, 2005
Last updated in NPPESOctober 21, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 1988 (38 years in practice)
Group practice Radiant Imaging Inc — 67 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients5,367
Services billed 13,991 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $30 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Radiant Imaging Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 67 clinicians in the practice; 12 are shown here.

Other providers in Pasadena