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

Patti E Williams, RN,PHN,NP

Women's Health Nurse Practitioner in Ukiah, CA · enumerated 2006.

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

National Provider Identifier

1891888632

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Registry record

Entity type Individual (Type 1)

Name Patti E Williams

Credential RN,PHN,NP

Sex Female

Practice address Ukiah, CA, 95482

Phone (707) 472-2696

Enumeration date Oct 2, 2006

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

363LW0102X Women's Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 6818 (CA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 specialty is Patti Williams?

Patti Williams is registered in NPPES with the primary taxonomy of Women's Health Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Alexander Bricken Case Manager/Care Coordinator · Ukiah, CA NPI 1619030210 Scott Abbott Marriage & Family Therapist · Ukiah, CA NPI 1568527646 Georgia O'Donoghue Licensed Vocational Nurse · Ukiah, CA NPI 1497812200 County of Mendocino Community/Behavioral Health Agency · Ukiah, CA NPI 1972658128 County of Mendocino Community/Behavioral Health Agency · Ukiah, CA NPI 1437296282 Maria Mccarthy Marriage & Family Therapist · Ukiah, CA NPI 1073657680 Karen Broderick Licensed Vocational Nurse · Ukiah, CA NPI 1770618019 Laura Warren Registered Nurse · Ukiah, CA NPI 1275757239

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