Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Douglas Mailman, M.D.

Addiction Medicine (Preventive Medicine) Physician in Everett, WA · enumerated 2017.

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

National Provider Identifier

1528504891

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Registry record

Entity type Individual (Type 1)

Name Douglas Mailman

Credential M.D.

Sex Male

Practice address Everett, WA, 98201

Phone (425) 258-7390

Fax (425) 258-7379

Enumeration date Jan 11, 2017

Last updated in NPPES Aug 12, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD20017 (HI) Secondary

2083A0300X Addiction Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License MD20017 (HI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Douglas Mailman practice?

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

What is the NPI number for Douglas Mailman?

The National Provider Identifier (NPI) for Douglas Mailman is 1528504891, 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 2024-08-12.