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

Mary Joan Heffernan, ARNP

Individual provider Nurse Practitioner · NPI 1588896377

Mary Joan Heffernan, ARNP is a Nurse Practitioner in Bellevue, Washington. Licensed in Washington. Registered with an NPI since 2009.

Licensed in
WA
In the registry since
2009
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

See every abbreviation used in this directory →

Practice location Address checks out

1135 116th Ave NE Ste 180
Bellevue, WA 98004-4623
Phone: (425) 467-3785
Fax: (425) 635-6656
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence AP60097092 (WA)

Record details

NPI number1588896377
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedAugust 13, 2009
Last updated in NPPESAugust 31, 2011

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