Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Julie Lynn Williamson, DO

Pediatric Anesthesiology Physician in Palo Alto, CA · enumerated 2007.

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

National Provider Identifier

1194862532

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Registry record

Entity type Individual (Type 1)

Name Julie Lynn Williamson

Credential DO

Sex Female

Practice address 725 Welch Rd, Palo Alto, CA, 94304

Phone (650) 497-8000

Enumeration date Feb 1, 2007

Last updated in NPPES Apr 11, 2024

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 20A18815 (CA) Secondary

2080P0203X Pediatric Critical Care Medicine Physician Allopathic & Osteopathic Physicians · License 20A18815 (CA) Secondary

207LP3000X Pediatric Anesthesiology Physician Allopathic & Osteopathic Physicians · License 20A18815 (CA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

How do I verify Julie Williamson's NPI record?

Cross-check NPI 1194862532 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1194862532 active?

Yes, as of the latest NPPES snapshot, NPI 1194862532 is active (record last updated 2024-04-11).

Other providers at this practice address

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Fred Laningham Pediatric Radiology Physician · Palo Alto, CA NPI 1962405753 David Ansel Developmental - Behavioral Pediatrics Physician · Palo Alto, CA NPI 1376547612 Allen Eskenazi Pediatrics Physician · Palo Alto, CA NPI 1487658332 Mohamed Hasan Neonatal-Perinatal Medicine Physician · Palo Alto, CA NPI 1538164470 Erin Holsinger Pediatrics Physician · Palo Alto, CA NPI 1003817347 Francisco Alvarez Hospitalist Physician · Palo Alto, CA NPI 1174525612 Katayoon Shahinfar Pediatrics Physician · Palo Alto, CA NPI 1700874559 Veronica Rooks Pediatric Radiology Physician · Palo Alto, CA NPI 1457341935

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-11.