Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Barbara Ann Williamson, NMW 956, NP6576, RN3

Advanced Practice Midwife in Richmond, CA · enumerated 2006 · practices at Lifelong Medical Care.

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

National Provider Identifier

1306943451

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Registry record

Entity type Individual (Type 1)

Name Ms. Barbara Ann Williamson

Credential NMW 956, NP6576, RN3

Sex Female

Practice address 1030 Nevin Ave, Richmond, CA, 94801

Phone (510) 215-5001

Fax (510) 215-1115

Enumeration date Sep 20, 2006

Last updated in NPPES Nov 8, 2012

Taxonomy & licenses

163WW0101X Ambulatory Women's Health Care Registered Nurse Nursing Service Providers · License 321816 (CA) Secondary

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 6576 (CA) Secondary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License 956 (CA) Secondary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License NMW956 (CA) Primary

364SW0102X Women's Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License NP6576 (CA) Secondary

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

Is NPI 1306943451 active?

Yes, as of the latest NPPES snapshot, NPI 1306943451 is active (record last updated 2012-11-08).

How do I verify Barbara Williamson's NPI record?

Cross-check NPI 1306943451 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 →

George Jackson Internal Medicine Physician · Richmond, CA NPI 1770517666 Teshina Wilson Family Medicine Physician · Richmond, CA NPI 1417147422 Lifelong Medical Care Clinical Social Worker · Richmond, CA NPI 1225418544 Christine Tarrant Clinical Social Worker · Richmond, CA NPI 1992340830

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-11-08.