Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Rebecca Robles Williams, NP

Neonatal Clinical Nurse Specialist in San Jose, CA · enumerated 2006.

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

National Provider Identifier

1407942139

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Rebecca Robles Williams

Credential NP

Sex Female

Practice address 751 S Bascom Ave, Pediatrics Dept, San Jose, CA, 95128

Phone (408) 885-5713

Enumeration date Oct 4, 2006

Last updated in NPPES Sep 12, 2007

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN263175 (CA) Secondary

364SN0000X Neonatal Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License RN263175 (CA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
RN263175	Medicaid	CA	-

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

Is NPI 1407942139 active?

Yes, as of the latest NPPES snapshot, NPI 1407942139 is active (record last updated 2007-09-12).

How do I verify Rebecca Williams's NPI record?

Cross-check NPI 1407942139 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Alfonso Banuelos Internal Medicine Physician · San Jose, CA NPI 1295720613 Carmela Yarlagadda Pediatrics Physician · San Jose, CA NPI 1336134279 County of Santa Clara Rehabilitation Hospital Unit · San Jose, CA NPI 1811982432 Prachi Bhise Pediatrics Physician · San Jose, CA NPI 1558343632 Jenny Dai Biller Obstetrics & Gynecology Physician · San Jose, CA NPI 1811970973 Edward Neely Pediatric Endocrinology Physician · San Jose, CA NPI 1710962998 Sangeeta Aggarwal Hematology & Oncology Physician · San Jose, CA NPI 1225008394 Anat Lotan Pediatrics Physician · San Jose, CA NPI 1255302089

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-12.