Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Susan Marie Stys, RN
Registered Nurse in Merrimack, NH · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1134322548
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Registry record
Entity type Individual (Type 1)
Name Mrs. Susan Marie Stys
Credential RN
Sex Female
Practice address 9 Walnut Cir, Merrimack, NH, 03054
Phone (603) 262-9288
Enumeration date Jun 6, 2007
Last updated in NPPES Jul 8, 2007
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
What specialty is Susan Stys?
Susan Stys is registered in NPPES with the primary taxonomy of Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.