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

Elissa Irene Tremblay, FNP

Family Nurse Practitioner in Belfast, ME · enumerated 2021.

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

National Provider Identifier

1659941615

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Registry record

Entity type Individual (Type 1)

Name Elissa Irene Tremblay

Credential FNP

Sex Female

Practice address Belfast, ME, 04915

Phone (207) 505-4567

Enumeration date Jun 30, 2021

Last updated in NPPES Oct 23, 2022

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License CNP211111 (ME) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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

Where does Elissa Tremblay practice?

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

What is the NPI number for Elissa Tremblay?

The National Provider Identifier (NPI) for Elissa Tremblay is 1659941615, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Everett Steinbarger Physician Assistant · Belfast, ME NPI 1831128990 Timothy Canham Medical Physician Assistant · Belfast, ME NPI 1780789057 Chelsea Howard Family Nurse Practitioner · Belfast, ME NPI 1649646035 Raymond Howard Family Medicine Physician · Belfast, ME NPI 1295199719 Jessica Hersom Clinical Social Worker · Belfast, ME NPI 1316442940 Ashlee Roy Physician Assistant · Belfast, ME NPI 1619598125

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-23.