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

MS. Mary Ellen Biggerstaff, ARNP

Individual provider Family Nurse Practitioner · NPI 1366775652

MS. Mary Ellen Biggerstaff, ARNP is a Nurse Practitioner in Elma, Washington. Qualified in 2009, 17 years ago. Practices with Grays Harbor County Public Hospital District No 1, a 60-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
17
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

600 E Main St
Elma, WA 98541
Phone: (360) 495-3244
Fax: (360) 495-3364
Show map & directions

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

Additional practice locations (1)

  • 1011 10th Ave Se, Olympia, WA 98501-1566 — (360) 349-0033

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence AP60102544 (WA)

Record details

NPI number1366775652
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorNo
NPI enumeratedSeptember 17, 2009
Last updated in NPPESMarch 13, 2023
Certification dateMarch 10, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Grays Harbor County Public Hospital District No 1 — 60 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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