Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Shannon Griffin, PA-C

Physician Assistant in Biddeford, ME · enumerated 2018.

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

National Provider Identifier

1124593249

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Registry record

Entity type Individual (Type 1)

Name Margaret Shannon Griffin

Credential PA-C

Sex Female

Practice address 24 West Cole Rd Ste 104, Biddeford, ME, 04005

Phone (207) 283-1602

Enumeration date Oct 4, 2018

Last updated in NPPES Nov 1, 2021

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 1408 (NH) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 1903 (ME) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 1907 (ME) 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 Margaret Griffin practice?

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

What is the NPI number for Margaret Griffin?

The National Provider Identifier (NPI) for Margaret Griffin is 1124593249, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-01.