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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diane L Walker, ARNP, CNM

Obstetrics & Gynecology Nurse Practitioner in Seattle, WA · enumerated 2007 · practices at Proliance Surgeons, Inc., P.S..

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

National Provider Identifier

1861614463

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Registry record

Entity type Individual (Type 1)
Name Diane L Walker
Credential ARNP, CNM
Sex Female
Practice address 1101 Madison St Ste 950, Seattle, WA, 98104
Phone (206) 682-5800
Enumeration date May 3, 2007
Last updated in NPPES Oct 23, 2020

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN00090852 (WA) Secondary
367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License AP60421358 (WA) Secondary
363LX0001X Obstetrics & Gynecology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP60421358 (WA) Primary
CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care. About the CNM credential

Other identifiers

Identifier Type State Issuer
2042961 Medicaid WA -

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

Is NPI 1861614463 active?
Yes, as of the latest NPPES snapshot, NPI 1861614463 is active (record last updated 2020-10-23).
How do I verify Diane Walker's NPI record?
Cross-check NPI 1861614463 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-23.