Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Lester I Marion MD PC A

Q: What type of organization is Lester I Marion MD PC A?

Lester I Marion MD PC A is registered in NPPES as a Specialist (its primary provider taxonomy).

Specialist in Chevy Chase, MD · enumerated 2008 · authorized official Rebecca Wisilosky, Manager.

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

National Provider Identifier

1467602235

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Registry record

Entity type Organization (Type 2)

Legal business name Lester I Marion MD PC A

Practice address 5530 Wisconsin Ave, Suite 1640, Chevy Chase, MD, 20815

Phone (301) 718-0600

Fax (202) 829-8279

Enumeration date Sep 29, 2008

Last updated in NPPES Oct 23, 2008

Taxonomy & classification

174400000X Specialist Other Service Providers · License D0020447 (MD) Primary

Authorized official

Name Rebecca Wisilosky

Title Manager

Phone (202) 829-0022

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 type of organization is Lester I Marion MD PC A?

Lester I Marion MD PC A is registered in NPPES as a Specialist (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-23.