NPI Portal NPI Lookup & Verification

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

Andrea Trinajstich Koval, R.N.

Registered Nurse in Mansfield Center, CT · enumerated 2012 · practices at Natchaug Hospital.

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

National Provider Identifier

1235487588

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Andrea Trinajstich Koval
Credential R.N.
Sex Female
Practice address Mansfield Center, CT, 06250
Phone (860) 367-1011
Enumeration date Aug 16, 2012
Last updated in NPPES Aug 16, 2012

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License R50224 (CT) Primary
163W00000X Registered Nurse Nursing Service Providers · License G306431 (CA) Secondary
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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Andrea Koval?
The National Provider Identifier (NPI) for Andrea Koval is 1235487588, a Type 1 (individual) record in the CMS NPPES registry.
Where does Andrea Koval practice?
The practice location on file with NPPES is in Mansfield Center, CT. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-16.