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

Margaret Sandler, PHD, ARNP

Family Nurse Practitioner in Port Orchard, WA · enumerated 2007.

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

National Provider Identifier

1588701510

Verified

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Registry record

Entity type Individual (Type 1)

Name Margaret Sandler

Credential PHD, ARNP

Sex Female

Practice address Port Orchard, WA, 98367

Phone (360) 874-5900

Fax (360) 874-5939

Enumeration date Jan 31, 2007

Last updated in NPPES Mar 30, 2011

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP30006514 (WA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
9641556	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Margaret Sandler?

The National Provider Identifier (NPI) for Margaret Sandler is 1588701510, a Type 1 (individual) record in the CMS NPPES registry.

Where does Margaret Sandler practice?

The practice location on file with NPPES is in Port Orchard, WA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-30.