Kathryn Ann Haack, ARNP - FNP-C
Nurse Practitioner · Sioux City, IA
Kathryn Ann Haack, ARNP - FNP-C is a nurse practitioner with a practice address in Sioux City, Iowa, and NPI 1225118078, issued on Oct 16, 2006. Check the license (Iowa A055923, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kathryn Ann Haack
- Credential
- ARNP - FNP-C
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- A055923 IA
A-055923 IA
Self-reported in NPPES; status is on the state search - Practice location
- 2720 Stone Park Blvd, Sioux City, IA 51102
- Phone
- (712) 239-4702
- Enumerated
- Oct 16, 2006
- Record last updated
- Jul 6, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (712) 239-0616
- Medicaid ID
- 0092080 IA
- Medicare enrollment
- Enrolled (PECOS I20070115000337); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,294 in Iowa → Look up another NPI →
Verify Kathryn Ann Haack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license A055923Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average nurse practitioner in 2024
2,770 Medicare Part D claims for 547 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Metoprolol Succinate371 claims
- Eliquis205 claims
- Lisinopril150 claims
- Atorvastatin Calcium144 claims
- Rosuvastatin Calcium141 claims
- Spironolactone123 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $77.30
4 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Northwest Iowa Hospital CorporationSioux City, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kathryn Ann Haack among 1,294 nurse practitioner records in Iowa
Kathryn Ann Haack, ARNP - FNP-C is one of 1,294 nurse practitioner records with a practice address in Iowa. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 77% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1998 · median 2018 among the 873 with a school on file
- Record last updated2011 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
38 nurse practitioner records list a practice address in Sioux City
They are 38 of the 1,486 NPPES records with a practice address in Sioux City, and 1,294 nurse practitioner records in Iowa.
All 1,294 in Iowa → Every provider in Sioux City → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Juliet Brinkman, ARNPSioux City, IA 511031740685361
- Shelley Brown, CRNPSioux City, IA 511011366608226
- Mark Davis, CNPSioux City, IA 511011053705871
- Noel Deleon, ARNPSioux City, IA 511011518495167
- Daniela Ferrell, ARNPSioux City, IA 511011063061042
- Michael Garrett, ARNPSioux City, IA 511011881877298
- Ginger Hamilton, FNPSioux City, IA 511011063957843
- Jennifer LucartSioux City, IA 511011528608528
Common questions
What is Kathryn Ann Haack, ARNP - FNP-C's NPI number?
Kathryn Ann Haack, ARNP - FNP-C's National Provider Identifier (NPI) is 1225118078, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Ann Haack, ARNP - FNP-C located?
The NPPES record lists a practice address at 2720 Stone Park Blvd, Sioux City, IA, 51102. Phone: (712) 239-4702. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Ann Haack, ARNP - FNP-C's license?
NPPES lists Iowa license number A055923, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Kathryn Ann Haack, ARNP - FNP-C prescribe under Medicare Part D?
In 2024, Kathryn Ann Haack, ARNP - FNP-C had 2,770 Medicare Part D claims for 547 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.