NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ann S. Mesinger, A.P.R.N

Family Nurse Practitioner in Monroe, CT · enumerated 2006.

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

National Provider Identifier

1396757902

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ann S. Mesinger
Credential A.P.R.N
Sex Female
Practice address 324 Elm St, Ste 202b, Monroe, CT, 06468
Fax (203) 907-1234
Enumeration date Aug 12, 2006
Last updated in NPPES Nov 20, 2013

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 001451 (CT) Primary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 001451 (CT) Secondary
APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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 specialty is Ann Mesinger?
Ann Mesinger is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. 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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-20.