NPI Portal NPI Lookup & Verification

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

Mrs. Sherline Themelus

Registered Nurse in Norwalk, CT · enumerated 2014.

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

National Provider Identifier

1427454669

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Registry record

Entity type Individual (Type 1)
Name Mrs. Sherline Themelus
Sex Female
Practice address Norwalk, CT, 06850
Phone (203) 826-0721
Enumeration date Nov 17, 2014
Last updated in NPPES Jun 29, 2023

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 786970 (NY) Secondary
164W00000X Licensed Practical Nurse Nursing Service Providers · License 317932 (NY) Secondary
163W00000X Registered Nurse Nursing Service Providers · License 170247 (CT) Primary

Other identifiers

Identifier Type State Issuer
1427454669 Medicaid CT -
1427454669 Medicaid NY -

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

Where does Sherline Themelus practice?
The practice location on file with NPPES is in Norwalk, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sherline Themelus?
The National Provider Identifier (NPI) for Sherline Themelus is 1427454669, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-29.