Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William Quell Patrick Jr., CSA

Surgical Physician Assistant in Rockville, MD · enumerated 2007.

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

National Provider Identifier

1669662540

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Registry record

Entity type Individual (Type 1)

Name William Quell Patrick Jr.

Credential CSA

Sex Male

Practice address 1 Research Ct, Suite 450, Rockville, MD, 20850

Phone (240) 403-4067

Fax (301) 519-8001

Enumeration date Jul 27, 2007

Last updated in NPPES Jun 1, 2009

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License SA0015 (DC) 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

What is the NPI number for William Patrick?

The National Provider Identifier (NPI) for William Patrick is 1669662540, a Type 1 (individual) record in the CMS NPPES registry.

Where does William Patrick practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-01.