Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Gabriel Irvin Westheimer, NP

Individual provider Nurse Practitioner · NPI 1912202946

Gabriel Irvin Westheimer, NP is a Nurse Practitioner in Stanford, California. Licensed in California. Registered with an NPI since 2011.

Licensed in
CA
In the registry since
2011
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

300 Pasteur Dr
Stanford, CA 94305-2200
Phone: (650) 723-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 20523 (CA)

Record details

NPI number1912202946
Entity typeIndividual (Type 1)
GenderMale
Credentials NP
Sole proprietorNo
NPI enumeratedJanuary 23, 2011
Last updated in NPPESJuly 15, 2024
Certification dateJuly 15, 2024

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 patients62
Services billed 86 a service is one billed item, such as a visit, a test or a procedure
Average patient age61

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.

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