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

Ms. Marcia Paige Melanson, LICSW

Clinical Social Worker in Groton, MA · enumerated 2007.

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

National Provider Identifier

1669682480

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Marcia Paige Melanson

Credential LICSW

Sex Female

Practice address Groton, MA, 01450

Phone (978) 448-0009

Fax (866) 311-1832

Enumeration date May 23, 2007

Last updated in NPPES Jun 13, 2013

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License SW104961-1 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
47139	Other	MA	TUFTS HEALTH PLAN
1056681	Other	MA	CIGNA
055746000	Other	MA	MAGELLANHEALTH
7998674	Other	MA	AETNA
505240	Other	MA	VALUE OPTIONS

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 Marcia Melanson?

The National Provider Identifier (NPI) for Marcia Melanson is 1669682480, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marcia Melanson practice?

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

Other providers at this practice address

Browse all →

Cynthia Petelle Mental Health Counselor · Groton, MA NPI 1366725426

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-13.