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

Mrs. Cornelia B Masak, RN, APNP

Individual provider Nurse Practitioner · NPI 1740319516

Mrs. Cornelia B Masak, RN, APNP is a Nurse Practitioner in Appleton, Wisconsin. Qualified in 1984, 42 years ago. Practices with Womens Health Specialists SC, a 27-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
42
Licensed in
WI
In the registry since
2007
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

1818 N Meade St
Appleton, WI 54911-3454
Phone: (920) 749-4000
Fax: (920) 749-4015
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 93688 (WI)

Record details

NPI number1740319516
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , APNP
Sole proprietorNo
NPI enumeratedMarch 5, 2007
Last updated in NPPESNovember 23, 2022
Certification dateNovember 23, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1984 (42 years in practice)
Group practice Womens Health Specialists Sc — 27 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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