Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Mary Susan Fuller, RN
Registered Nurse in Herkimer, NY · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1427857382
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Registry record
Entity type Individual (Type 1)
Name Mrs. Mary Susan Fuller
Credential RN
Sex Female
Practice address 301 N Washington Street Herkimer County Mental Health, Suite 2470, Herkimer, NY, 13350
Phone (315) 867-1465
Fax (315) 867-1469
Enumeration date Mar 12, 2025
Last updated in NPPES Mar 12, 2025
Taxonomy & licenses
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.
Frequently asked questions
How do I verify Mary Fuller's NPI record?
Cross-check NPI 1427857382 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1427857382 active?
Yes, as of the latest NPPES snapshot, NPI 1427857382 is active (record last updated 2025-03-12).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-12.