Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William Donald Hazelton

Individual provider Ph.D. Medical Genetics · NPI 1255258521

William Donald Hazelton is a Ph.D. Medical Genetics in Seattle, Washington. Registered with an NPI since 2026.

In the registry since
2026

Practice location Address checks out

1100 Fairview Ave N
Seattle, WA 98109-4433
Phone: (206) 293-1921
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ph.D. Medical Genetics (primary) Taxonomy 170100000X

Record details

NPI number1255258521
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 30, 2026
Last updated in NPPESJune 30, 2026
Certification dateJune 30, 2026
Mailing address1100 Fairview Ave N, Seattle, WA 98109-4433

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