Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alexander David Malloy, D.O.

Trauma Surgery Physician in Seattle, WA · enumerated 2012.

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

National Provider Identifier

1174886824

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Registry record

Entity type Individual (Type 1)

Name Dr. Alexander David Malloy

Credential D.O.

Sex Male

Practice address 325 9th Ave, Seattle, WA, 98104

Phone (206) 520-5000

Enumeration date Jun 18, 2012

Last updated in NPPES Oct 24, 2025

Taxonomy & licenses

2086S0127X Trauma Surgery Physician Allopathic & Osteopathic Physicians · License OP61134169 (WA) Primary

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License DOS-1605 (HI) Secondary

2086S0102X Surgical Critical Care Physician Allopathic & Osteopathic Physicians · License OC-0411 (ID) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License DOS-1605 (HI) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
1174886824	Medicaid	WA	-

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 specialty is Alexander Malloy?

Alexander Malloy is registered in NPPES with the primary taxonomy of Trauma Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-24.