Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Sonia Nader, MD

Q: What is the NPI number for Sonia Nader?

The National Provider Identifier (NPI) for Sonia Nader is 1548294978, a Type 1 (individual) record in the CMS NPPES registry.

Pediatrics Physician in Palo Alto, CA · enumerated 2006.

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

National Provider Identifier

1548294978

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Sonia Nader

Credential MD

Sex Female

Practice address 1101 Welch Rd, Suite A1, Palo Alto, CA, 94304

Phone (650) 329-0300

Fax (650) 329-8421

Enumeration date Jul 10, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License A53552 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Sonia Nader?

The National Provider Identifier (NPI) for Sonia Nader is 1548294978, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sonia Nader 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

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.