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

Mary Kay Nissen

Individual provider Nurse Practitioner · NPI 1659604403

Mary Kay Nissen is a Nurse Practitioner in Sioux City, Iowa. Qualified in 2009, 17 years ago. Practices with Shenandoah Medical Center, a 54-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
17
Licensed in
IA
In the registry since
2009
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Practice location Address checks out

3303 Rebecca St
Sioux City, IA 51104-2324
Phone: (712) 279-5458
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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 A-076138 (IA)

Record details

NPI number1659604403
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedSeptember 11, 2009
Last updated in NPPESOctober 3, 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 Shenandoah Medical Center — 54 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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