Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mary Kathleen Arbuthnot, DO

Pediatric Surgery Physician in Portsmouth, VA · enumerated 2011.

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

National Provider Identifier

1366737843

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary Kathleen Arbuthnot

Credential DO

Sex Female

Practice address 620 John Paul Jones Cir, Portsmouth, VA, 23708

Phone (757) 953-5000

Enumeration date Jun 13, 2011

Last updated in NPPES Jun 22, 2026

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License OS22864 (FL) Secondary

2086S0120X Pediatric Surgery Physician Allopathic & Osteopathic Physicians · License OS22864 (FL) Primary

2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License OS22864 (FL) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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.

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Frequently asked questions

Where does Mary Arbuthnot practice?

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

What is the NPI number for Mary Arbuthnot?

The National Provider Identifier (NPI) for Mary Arbuthnot is 1366737843, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-22.