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DR. LAWRENCE ARTHUR WILLIAM
NPI 1124146808
Internal Medicine in Foster City, CA

Active since March 27, 2007
1165 TRITON DR, FOSTER CITY, CA 94404(650) 358-5811 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Lawrence Arthur William NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LAWRENCE ARTHUR WILLIAM (NPI 1124146808) is an individual internal medicine provider in Foster City, California, licensed in California (G17910) and active in the NPI registry since March 2007.

NPPES Registry Identity

NPI1124146808
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. LAWRENCE ARTHUR WILLIAM
Location Address1165 TRITON DRFoster City, CA 94404-1213
Mailing Address11557 Hillpark LnLos Altos Hills, CA 94024-6528 · (650) 948-3632
Phone(650) 358-5811
Sole ProprietorYes
Enumeration DateMarch 27, 2007
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1124146808 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G17910
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Hematology & OncologyTaxonomy 207RH0003X · License G17910 (CA)
1165 TRITON DR, Foster City, CA 94404
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Other Names 1

Professional Name (2)Dr. Lawrence A William M.d.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AFFINITY MEDICAL GROUP
Case Manager/Care Coordinator
1165 TRITON DR
FOSTER CITY, CA 94404
San Mateo County (650) 358-3121

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lawrence William's NPI number?

The NPI number for Lawrence William is 1124146808. It was assigned to this individual provider in the NPPES registry on March 27, 2007. The provider is also known as Dr. Lawrence A William M.D..

Where is Lawrence William located?

Lawrence William practices at 1165 Triton Dr, Foster City, CA 94404. The listed phone number is (650) 358-5811.

What is Lawrence William's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Lawrence William was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.