Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Life Extension Institute, Inc.

Internal Medicine Physician in Mc Lean, VA · enumerated 2012 · authorized official Roxana Guzman, Director of Accounting.

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

National Provider Identifier

1548536311

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Registry record

Entity type Organization (Type 2)

Legal business name Life Extension Institute, Inc.

Other name <Unavail>

Practice address 8300 Greensboro Dr Ste 1050, Mc Lean, VA, 22102

Phone (703) 394-3400

Enumeration date Mar 27, 2012

Last updated in NPPES Mar 27, 2012

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Roxana Guzman

Title Director of Accounting

Phone (212) 332-3725

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 current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2012-03-27. Verify at npiregistry.cms.hhs.gov.

Where is Life Extension Institute, Inc. located?

The practice location on file with NPPES is in Mc Lean, VA.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-27.