Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Dooley

Emergency Medicine Physician in Rockville, MD · enumerated 2006.

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

National Provider Identifier

1588689327

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Registry record

Entity type Individual (Type 1)

Name William Dooley

Sex Male

Practice address 9901 Medical Center Dr, Rockville, MD, 20850

Phone (301) 279-6550

Enumeration date Jul 13, 2006

Last updated in NPPES Mar 18, 2010

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License D33261 (MD) Primary

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

Where does William Dooley practice?

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

What is the NPI number for William Dooley?

The National Provider Identifier (NPI) for William Dooley is 1588689327, 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 2010-03-18.