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Julia Marx, MD

Family Medicine Physician in Los Altos, CA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1316039183

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Registry record

Entity type Individual (Type 1)
Name Julia Marx
Credential MD
Sex Female
Practice address 370 Distel Cir, Los Altos, CA, 94022
Phone (209) 603-8524
Enumeration date Sep 29, 2006
Last updated in NPPES Dec 15, 2011

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License A61863 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Julia Marx practice?
The practice location on file with NPPES is in Los Altos, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Julia Marx?
The National Provider Identifier (NPI) for Julia Marx is 1316039183, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-15.