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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mary Susan Nason, BSN, RN, ACM

Ambulatory Care Registered Nurse in Vicksburg, MI · enumerated 2020 · practices at Family Doctors of Vicksburg, PC.

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

National Provider Identifier

1538798814

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Registry record

Entity type Individual (Type 1)
Name Mrs. Mary Susan Nason
Credential BSN, RN, ACM
Sex Female
Practice address 13320 N Boulevard St, Vicksburg, MI, 49097
Phone (269) 649-5643
Fax (269) 649-3318
Enumeration date Apr 7, 2020
Last updated in NPPES Apr 7, 2020

Taxonomy & licenses

163WP2201X Ambulatory Care Registered Nurse Nursing Service Providers · License 4704233049 (MI) 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.

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Frequently asked questions

How do I verify Mary Nason's NPI record?
Cross-check NPI 1538798814 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1538798814 active?
Yes, as of the latest NPPES snapshot, NPI 1538798814 is active (record last updated 2020-04-07).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-07.