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Mary Louise Sebastian, M.D.

Surgery Physician in Arlington, VA · enumerated 2006 · practices at Virginia Hospital Center Physician Group, LLC.

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

National Provider Identifier

1124054457

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Registry record

Entity type Individual (Type 1)
Name Mary Louise Sebastian
Credential M.D.
Sex Female
Practice address 1851 N George Mason Dr Ste 5d, Arlington, VA, 22207
Phone (703) 717-4217
Fax (703) 717-4218
Enumeration date Jun 26, 2006
Last updated in NPPES Feb 23, 2026

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 0101233396 (VA) 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.

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Frequently asked questions

Is NPI 1124054457 active?
Yes, as of the latest NPPES snapshot, NPI 1124054457 is active (record last updated 2026-02-23).
How do I verify Mary Sebastian's NPI record?
Cross-check NPI 1124054457 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-23.