Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Leon & Leon, M.D., P.A

Family Medicine Physician in Waldorf, MD · enumerated 2006 · authorized official Joan Barker, Office Manager.

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

National Provider Identifier

1124096524

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Registry record

Entity type Organization (Type 2)

Legal business name Leon & Leon, M.D., P.A

Other name <Unavail>

Parent organization Leon & Leon, M.D., P.A.

Practice address 3261 Old Washington Rd, Suite 3010, Waldorf, MD, 20602

Phone (301) 645-9551

Fax (301) 645-0039

Enumeration date Mar 10, 2006

Last updated in NPPES Jun 27, 2008

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Joan Barker

Title Office Manager

Phone (301) 645-9551

Other identifiers

Identifier	Type	State	Issuer
752341600	Medicaid	MD	-

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 is Leon & Leon, M.D., P.A located?

The practice location on file with NPPES is in Waldorf, MD.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-06-27. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-27.