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Mason W Oltman, MD

Pediatrics Physician in Seattle, WA · enumerated 2006 · practices at Dynacare Northwest Inc.

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

National Provider Identifier

1770679888

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Registry record

Entity type Individual (Type 1)
Name Mason W Oltman
Credential MD
Sex Male
Practice address 2211 Queen Anne Ave N, Seattle, WA, 98109
Phone (206) 861-8500
Fax (206) 861-8501
Enumeration date Oct 5, 2006
Last updated in NPPES Apr 15, 2022

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD00045063 (WA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
8436289 Medicaid WA -
1045617 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 is the NPI number for Mason Oltman?
The National Provider Identifier (NPI) for Mason Oltman is 1770679888, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mason Oltman practice?
The practice location on file with NPPES is in Seattle, WA. 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 2022-04-15.