MARY KAY NISSEN
NPI 1659604403
Nurse Practitioner in Sioux City, IA

Active since September 11, 2009PECOS EnrolledAccepts Medicare Assignment
3303 REBECCA ST, SIOUX CITY, IA 51104(712) 279-5458 Get Directions Write a Review

NPPES record last updated: October 3, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mary Kay Nissen NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY KAY NISSEN (NPI 1659604403) is an individual nurse practitioner in Sioux City, Iowa, licensed in Iowa (A-076138) and active in the NPI registry since September 2009. She is enrolled in Medicare PECOS, is affiliated with Shenandoah Medical Center, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1659604403
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMARY KAY NISSEN
Location Address3303 REBECCA STSioux City, IA 51104-2324
Mailing Address3303 Rebecca StSioux City, IA 51104-2324 · (712) 279-5458
Sole ProprietorYes
Medical School CMSOtherGraduated 2009
Enumeration DateSeptember 11, 2009
Last NPPES UpdateOctober 3, 2023
NPI 1659604403 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License Licensed in IA · A-076138
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
3303 REBECCA ST, Sioux City, IA 51104

Other Names 1

Former Name (1)Mary Kay Studer Arnp-bc

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mary Kay Nissen is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2264573401
PECOS Enrollment IDI20170208001432
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Shenandoah Medical Center

Critical Access Hospitals · Shenandoah, IA
OwnershipVoluntary non-profit - Private
CMS Certification Number161366
Location300 Pershing AvenueShenandoah, IA 51601 · Page County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 51104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$81.84 typical visit price
range $52.96 – $161.40
Typical copayment $20.46 (range $13.24 – $40.35)
Most-billed visit code 99203
Established Patient
$94.05 typical visit price
range $16.91 – $131.98
Typical copayment $23.51 (range $4.22 – $32.99)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$111.68 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$38.23 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Specialist/Technologist (Athletic Trainer)
3303 REBECCA ST
SIOUX CITY, IA 51104
Nurse Practitioner (Family)
3303 REBECCA ST
SIOUX CITY, IA 51104
Specialist/Technologist (Athletic Trainer)
3303 REBECCA ST
SIOUX CITY, IA 51104

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Nissen's NPI number?

The NPI number for Mary Nissen is 1659604403. It was assigned to this individual provider in the NPPES registry on September 11, 2009. The provider is also known as Mary Kay Studer Arnp-Bc.

Where is Mary Nissen located?

Mary Nissen practices at 3303 Rebecca St, Sioux City, IA 51104. The listed phone number is (712) 279-5458.

What is Mary Nissen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Mary Nissen enrolled in Medicare?

Yes. Mary Nissen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Mary Nissen accept?

Health plans from UnitedHealthcare list Mary Nissen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Mary Nissen affiliated with any hospitals?

According to CMS data, Mary Nissen is affiliated with Shenandoah Medical Center.

When was this NPI record last updated?

The NPPES record for Mary Nissen was last updated on October 3, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.