Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Ann Gagnon, APRN

Q: What is the NPI number for Mary Gagnon?

The National Provider Identifier (NPI) for Mary Gagnon is 1871601948, a Type 1 (individual) record in the CMS NPPES registry.

Primary Care Nurse Practitioner in South Berwick, ME · enumerated 2006.

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

National Provider Identifier

1871601948

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Registry record

Entity type Individual (Type 1)

Name Mary Ann Gagnon

Credential APRN

Sex Female

Practice address 31 Colcord St, South Berwick, ME, 03908

Phone (207) 384-4949

Fax (207) 384-4273

Enumeration date Aug 28, 2006

Last updated in NPPES Mar 6, 2019

Taxonomy & licenses

363LP2300X Primary Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 029774-23 (NH) Secondary

363LP2300X Primary Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License CNP81271 (ME) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

Other identifiers

Identifier	Type	State	Issuer
3075766	Medicaid	NH	-
P00991109	Other	ME	RR MEDICARE
500022875	Other	NH	RR MEDICARE
1871601948	Medicaid	ME	-

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 Mary Gagnon?

The National Provider Identifier (NPI) for Mary Gagnon is 1871601948, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Gagnon practice?

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

Other providers at this practice address

Browse all →

Cheryl Corrao Medical Physician Assistant · South Berwick, ME NPI 1487672135 Michael Kumin Family Medicine Physician · South Berwick, ME NPI 1184795205 Ricardo Plata Physician Assistant · South Berwick, ME NPI 1215187794 Caryn Dunn Family Nurse Practitioner · South Berwick, ME NPI 1114446804 Sally Naredla Family Nurse Practitioner · South Berwick, ME NPI 1861195687

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-06.