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

Peter S Hesslein, MD

Individual provider Pediatrics Physician · NPI 1003979071

Peter S Hesslein, MD is a Pediatrics Physician in Seattle, Washington. Licensed in Washington. Registered with an NPI since 2006.

Licensed in
WA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1101 Madison St Ste 800
Seattle, WA 98104-1306
Phone: (206) 215-2700
Fax: (206) 215-2702
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Cardiology Physician (primary) Taxonomy 2080P0202X · Licence MD00044176 (WA)
Pediatrics Physician Taxonomy 208000000X · Licence MD00044176 (WA)

Record details

NPI number1003979071
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 19, 2006
Last updated in NPPESMay 29, 2012
Mailing addressPo Box 84026, Seattle, WA 98124-8426

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