Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary Susan Vann, PH.D.

Clinical Psychologist in Richland, WA · enumerated 2007.

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

National Provider Identifier

1891814349

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary Susan Vann

Credential PH.D.

Sex Female

Practice address 660 Jadwin Ave Ste E, Richland, WA, 99352

Phone (509) 528-4574

Enumeration date Mar 28, 2007

Last updated in NPPES Aug 18, 2020

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 3564 (WA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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 1891814349 active?

Yes, as of the latest NPPES snapshot, NPI 1891814349 is active (record last updated 2020-08-18).

How do I verify Mary Vann's NPI record?

Cross-check NPI 1891814349 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-18.