Mary Kay Nissen
Nurse Practitioner · Sioux City, IA
Mary Kay Nissen is a nurse practitioner with a practice address in Sioux City, Iowa, and NPI 1659604403, issued on Sep 11, 2009. Check the license (Iowa A-076138, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Kay Nissen
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- A-076138 IA
Self-reported in NPPES; status is on the state search - Practice location
- 3303 Rebecca St, Sioux City, IA 51104
- Phone
- (712) 279-5458
- Enumerated
- Sep 11, 2009
- Record last updated
- Oct 3, 2023
- Medicare enrollment
- Enrolled (PECOS I20170208001432); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,294 in Iowa → Look up another NPI →
Also registered at 3303 Rebecca St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Beidler, PHD MBE CRNPFamily Nurse Practitioner1881692473
- Kelsie Colfack, ATCAthletic Trainer1841099124
- Traci Stone, MSE, ATC, LAT, CSCSAthletic Trainer1912958406
Verify Mary Kay Nissen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license A-076138Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average nurse practitioner in 2024
49 Medicare Part D claims for 41 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
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.
One hospital affiliation
- Shenandoah Medical CenterShenandoah, IA · Critical Access Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Mary Kay Nissen among 1,294 nurse practitioner records in Iowa
Mary Kay Nissen 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 2009, is newer than 28% of them.
- NPI issued2009 · 28% of these records are older, 70% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2009 · median 2018 among the 873 with a school on file
- Record last updated2023 · 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
- Alison Berger, NP-CSioux City, IA 511041174047781
- Rhonda Christensen, ARNPSioux City, IA 511041225389406
- Megan Fedders, NP-C, ARNPSioux City, IA 511041285490300
- Alex Gerdes, ARNPSioux City, IA 511041942936885
- Kendra Goeden, MSN, ARNP, FNP-CSioux City, IA 511041548995459
- Suzanne Griffith, ARNPSioux City, IA 511041720290950
- Dora Houts, ARNP, FNP-BCSioux City, IA 511041871844290
- Jessilyn Johannsen, RNSioux City, IA 511041811731490
Common questions
What is Mary Kay Nissen's NPI number?
Mary Kay Nissen's National Provider Identifier (NPI) is 1659604403, issued on Sep 11, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mary Kay Nissen located?
The NPPES record lists a practice address at 3303 Rebecca St, Sioux City, IA, 51104. Phone: (712) 279-5458. Providers update this record themselves, so call before visiting.
How can I verify Mary Kay Nissen's license?
NPPES lists Iowa license number A-076138, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Kay Nissen prescribe under Medicare Part D?
In 2024, Mary Kay Nissen had 49 Medicare Part D claims for 41 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.