Katrina Stoffel, ARNP
Nurse Practitioner · Waterloo, IA
Katrina Stoffel, ARNP is a nurse practitioner with a practice address in Waterloo, Iowa, and NPI 1336556844, issued on Jul 16, 2014. Check the license (Iowa A128143, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katrina Stoffel
- Credential
- ARNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- A128143 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1825 Logan Ave, Waterloo, IA 50703
- Phone
- (319) 235-3629
- Enumerated
- Jul 16, 2014
- Record last updated
- Feb 22, 2023
- Medicare enrollment
- Enrolled (PECOS I20140805002909); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,294 in Iowa → Look up another NPI →
Also registered at 1825 Logan Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katrina Stoffel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license A128143Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average nurse practitioner in 2024
156 Medicare Part D claims for 115 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Cephalexin27 claims
- Amoxicillin-Clavulanate Potass15 claims
- Doxycycline Hyclate15 claims
- Hydrocodone-Acetaminophen12 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.
Bills Medicare through one group practice
- Allen Memorial Hospital CorporationWaterloo, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katrina Stoffel among 1,294 nurse practitioner records in Iowa
Katrina Stoffel, 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 2014, is newer than 39% of them.
- NPI issued2014 · 39% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2014 · 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).
96 nurse practitioner records list a practice address in Waterloo
They are 96 of the 1,512 NPPES records with a practice address in Waterloo, and 1,294 nurse practitioner records in Iowa.
All 1,294 in Iowa → Every provider in Waterloo → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Mary Ann Amend, ARNPWaterloo, IA 507031659312254
- Paula Anderson, ARNPWaterloo, IA 507031992744569
- Esther Bahlmann, NPWaterloo, IA 507031740265115
- Michele Friedman, A.R.N.P.Waterloo, IA 507031508844465
- Sommer Grant, ARNPWaterloo, IA 507031235116153
- Kari Haislet, ARNPWaterloo, IA 507031235182627
- Patricia Harvey, APRN, FNP-CWaterloo, IA 507031891709952
- Kelly Hassman, ARNPWaterloo, IA 507031073719738
Common questions
What is Katrina Stoffel, ARNP's NPI number?
Katrina Stoffel, ARNP's National Provider Identifier (NPI) is 1336556844, issued on Jul 16, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Katrina Stoffel, ARNP located?
The NPPES record lists a practice address at 1825 Logan Ave, Waterloo, IA, 50703. Phone: (319) 235-3629. Providers update this record themselves, so call before visiting.
How can I verify Katrina Stoffel, ARNP's license?
NPPES lists Iowa license number A128143, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Katrina Stoffel, ARNP prescribe under Medicare Part D?
In 2024, Katrina Stoffel, ARNP had 156 Medicare Part D claims for 115 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.