Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Gretchen Elizabeth Lewis, LCMHC CASAC

Addiction (Substance Use Disorder) Counselor in Newport, VT · enumerated 2006.

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

National Provider Identifier

1659448207

Verified

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Registry record

Entity type Individual (Type 1)

Name Ms. Gretchen Elizabeth Lewis

Credential LCMHC CASAC

Sex Female

Practice address 194 Main Street, Suite 211, Newport, VT, 05855

Phone (802) 334-8834

Fax (802) 334-5655

Enumeration date Nov 29, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 103869 (VT) Primary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 0680000569 (VT) Secondary

Other identifiers

Identifier	Type	State	Issuer
1009883	Medicaid	VT	-
1596688	Other	VT	BCBS
1596688	Other	VT	CIGNA

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

Where does Gretchen Lewis practice?

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

What is the NPI number for Gretchen Lewis?

The National Provider Identifier (NPI) for Gretchen Lewis is 1659448207, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.