Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Donald Mcguirl, MD

Vascular Surgery Physician in Portland, ME · enumerated 2021.

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

National Provider Identifier

1063098960

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Registry record

Entity type Individual (Type 1)

Name Dr. Donald Mcguirl

Credential MD

Sex Male

Practice address 22 Bramhall St, Portland, ME, 04102

Phone (207) 662-0111

Enumeration date Mar 22, 2021

Last updated in NPPES Jul 29, 2026

Taxonomy & licenses

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License 83996 (CT) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

What is the NPI number for Donald Mcguirl?

The National Provider Identifier (NPI) for Donald Mcguirl is 1063098960, a Type 1 (individual) record in the CMS NPPES registry.

Where does Donald Mcguirl practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-29.