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

Melissa Gardner, CNP

Addiction (Substance Use Disorder) Registered Nurse in East Boston, MA · enumerated 2016.

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

National Provider Identifier

1033652987

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Registry record

Entity type Individual (Type 1)

Name Melissa Gardner

Credential CNP

Sex Female

Practice address East Boston, MA, 02128

Phone (413) 584-2173

Enumeration date Nov 27, 2016

Last updated in NPPES Apr 11, 2024

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

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN2280655 (MA) Secondary

163WA0400X Addiction (Substance Use Disorder) Registered Nurse Nursing Service Providers · License RN2280655 (MA) Primary

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 Melissa Gardner practice?

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

What is the NPI number for Melissa Gardner?

The National Provider Identifier (NPI) for Melissa Gardner is 1033652987, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-11.