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

Ms. Michele Nadine Litwin, NP, CARN-AP

Psychiatric/Mental Health Nurse Practitioner in Niantic, CT · enumerated 2006.

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

National Provider Identifier

1457304420

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Registry record

Entity type Individual (Type 1)

Name Ms. Michele Nadine Litwin

Credential NP, CARN-AP

Sex Female

Practice address Niantic, CT, 06357

Phone (860) 691-0873

Fax (860) 691-0876

Enumeration date May 18, 2006

Last updated in NPPES Nov 23, 2016

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

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 003399 (CT) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
004269701	Medicaid	CT	-

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 Michele Litwin?

The National Provider Identifier (NPI) for Michele Litwin is 1457304420, a Type 1 (individual) record in the CMS NPPES registry.

Where does Michele Litwin practice?

The practice location on file with NPPES is in Niantic, CT. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-11-23.