Gretchen M. Kass, ARNP
Nurse Practitioner · Iowa City, IA
Gretchen M. Kass, ARNP is a nurse practitioner with a practice address in Iowa City, Iowa, and NPI 1376809251, issued on Apr 5, 2012. Check the license (Iowa A108659, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gretchen M. Kass
- Credential
- ARNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- A108659 IA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Hawkins Dr, Iowa City, IA 52242
- Phone
- (319) 356-2496
- Enumerated
- Apr 5, 2012
- Record last updated
- Nov 20, 2025
- Fax
- (319) 356-8378
- Medicare enrollment
- Enrolled (PECOS I20120418000807); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,294 in Iowa → Look up another NPI →
Also registered at 200 Hawkins Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Helena Aaberg, MDAnesthesiology Physician1689301558
- Abdullah Abbasi, MDGastroenterology Physician1932944204
- Mary Jo Abbott, RPHPharmacist1841325875
- Francois Abboud, MDCardiovascular Disease Physician1598753113
- Abdalla Abdalla, MBBCHAnatomic Pathology & Clinical Pathology Physician1518859826
- Sameh AbdallaAnatomic Pathology & Clinical Pathology Physician1437902160
Verify Gretchen M. Kass in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license A108659Check 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
40 Medicare Part D claims for 15 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.
Industry payments in 2024: $172.42
3 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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 2 group practices
- State University OF IowaIowa City, IA
- Unified Therapy Services, IncDubuque, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gretchen M. Kass among 1,294 nurse practitioner records in Iowa
Gretchen M. Kass, ARNP 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 2012, is newer than 33% of them.
- NPI issued2012 · 33% of these records are older, 64% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2007 · median 2018 among the 873 with a school on file
- Record last updated2025 · 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).
199 nurse practitioner records list a practice address in Iowa City
They are 199 of the 7,163 NPPES records with a practice address in Iowa City, and 1,294 nurse practitioner records in Iowa.
All 1,294 in Iowa → Every provider in Iowa City → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- David Barloon, ARNPIowa City, IA 522421881689552
- Katherine Bjornsen, ARNPIowa City, IA 522421851386791
- Joni Bosch, PHD ARNPIowa City, IA 522421700871647
- Kathryn Breitbach, ARNPIowa City, IA 522421841285772
- Kristen Brown, ARNPIowa City, IA 522421518952720
- Jo Crowe, ARNPIowa City, IA 522421982699658
- Elizabeth Dowd, ARNPIowa City, IA 522421710972591
- Kathleen Fenoy, ARNPIowa City, IA 522421063405181
Common questions
What is Gretchen M. Kass, ARNP's NPI number?
Gretchen M. Kass, ARNP's National Provider Identifier (NPI) is 1376809251, issued on Apr 5, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Gretchen M. Kass, ARNP located?
The NPPES record lists a practice address at 200 Hawkins Dr, Iowa City, IA, 52242. Phone: (319) 356-2496. Providers update this record themselves, so call before visiting.
How can I verify Gretchen M. Kass, ARNP's license?
NPPES lists Iowa license number A108659, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Gretchen M. Kass, ARNP prescribe under Medicare Part D?
In 2024, Gretchen M. Kass, ARNP had 40 Medicare Part D claims for 15 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.