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

MS. Kathryn Ann Haack, ARNP-FNP-C

Individual provider Nurse Practitioner · NPI 1225118078

MS. Kathryn Ann Haack, ARNP-FNP-C is a Nurse Practitioner in Sioux City, Iowa. Qualified in 1998, 28 years ago. Practices with Northwest Iowa Hospital Corporation, a 132-clinician group and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
28
Licensed in
IA
In the registry since
2006
Specialties on file
2
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Practice location Address checks out

2720 Stone Park Blvd Ste 110
Sioux City, IA 51102 Not confirmed with CMS for 15 years — call before visiting
Phone: (712) 239-4702
Fax: (712) 239-0616
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence A055923 (IA)
Nurse Practitioner Taxonomy 363L00000X · Licence A-055923 (IA)

Record details

NPI number1225118078
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP-FNP-C
Sole proprietorNo
NPI enumeratedOctober 16, 2006
Last updated in NPPESJuly 6, 2011

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Northwest Iowa Hospital Corporation — 132 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients667
Services billed 762 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $125 8 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • St Lukes Regional Medical Center Hospital · Sioux City, IA

Colleagues at Northwest Iowa Hospital Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 132 clinicians in the practice; 12 are shown here.

Other providers in Sioux City