Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Wolf Perrin, M.D.

Neurology Physician in Arlington, VA · enumerated 2007.

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

National Provider Identifier

1528281177

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Registry record

Entity type Individual (Type 1)

Name Margaret Wolf Perrin

Credential M.D.

Sex Female

Practice address 1635 N George Mason Dr, #420, Arlington, VA, 22205

Phone (703) 536-4000

Fax (703) 527-4339

Enumeration date Apr 11, 2007

Last updated in NPPES Mar 10, 2011

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 0101240062 (VA) Primary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License D0067783 (MD) Secondary

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

Where does Margaret Perrin practice?

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

What is the NPI number for Margaret Perrin?

The National Provider Identifier (NPI) for Margaret Perrin is 1528281177, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-10.