Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michele A Guilfoyle, PA-C

Physician Assistant in Portsmouth, NH · enumerated 2005.

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

National Provider Identifier

1336133388

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Registry record

Entity type Individual (Type 1)

Name Michele A Guilfoyle

Credential PA-C

Sex Female

Practice address 330 Borthwick Ave, Suite 202w, Portsmouth, NH, 03801

Phone (603) 433-8434

Fax (603) 436-6608

Enumeration date Sep 6, 2005

Last updated in NPPES Sep 23, 2021

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 0316P (NH) Primary

Other identifiers

Identifier	Type	State	Issuer
3086741	Medicaid	NH	-

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

How do I verify Michele Guilfoyle's NPI record?

Cross-check NPI 1336133388 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1336133388 active?

Yes, as of the latest NPPES snapshot, NPI 1336133388 is active (record last updated 2021-09-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-09-23.