Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Stephanie D Chao, MD

Pediatric Surgery Physician in Palo Alto, CA · enumerated 2007 · practices at Lucile Packard Stanford Children'S Hospital.

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

National Provider Identifier

1952598708

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Registry record

Entity type Individual (Type 1)

Name Stephanie D Chao

Credential MD

Sex Female

Practice address Palo Alto, CA, 94304

Phone (650) 723-4000

Enumeration date Sep 25, 2007

Last updated in NPPES Apr 29, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2086S0120X Pediatric Surgery Physician Allopathic & Osteopathic Physicians · License A101605 (CA) Primary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License A101605 (CA) Secondary

2086S0127X Trauma Surgery Physician Allopathic & Osteopathic Physicians · License A101605 (CA) Secondary

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

What is the NPI number for Stephanie Chao?

The National Provider Identifier (NPI) for Stephanie Chao is 1952598708, a Type 1 (individual) record in the CMS NPPES registry.

Where does Stephanie Chao practice?

The practice location on file with NPPES is in Palo Alto, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-29.