KATRINA STOFFEL ARNP
NPI 1336556844
Nurse Practitioner in Waterloo, IA
About Katrina Stoffel Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATRINA STOFFEL ARNP (NPI 1336556844) is an individual nurse practitioner in Waterloo, Iowa, licensed in Iowa (A128143) and active in the NPI registry since July 2014. She is enrolled in Medicare PECOS, is affiliated with Allen Hospital, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Katrina Stoffel Arnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Katrina Stoffel reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Waterloo, IA 50703
- Reassigned Medicare billing, Iowa enrollment
- 273 clinicians in this Medicare group
Marshalltown, IA 50158
- Reassigned Medicare billing, Iowa enrollment
- 214 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Allen Hospital
Acute Care Hospitals · Waterloo, IAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 50703 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WATERLOO, IA 50703
WATERLOO, IA 50703
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Katrina Stoffel's NPI number?
The NPI number for Katrina Stoffel is 1336556844. It was assigned to this individual provider in the NPPES registry on July 16, 2014.
Where is Katrina Stoffel located?
Katrina Stoffel practices at 1825 Logan Ave, Waterloo, IA 50703. The listed phone number is (319) 235-3629.
What is Katrina Stoffel's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Katrina Stoffel enrolled in Medicare?
Yes. Katrina Stoffel is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Katrina Stoffel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katrina Stoffel reassigns Medicare benefits to 2 organizations: Allen Memorial Hospital Corporation (Waterloo, IA) and Unitypoint Health - Marshalltown (Marshalltown, IA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Katrina Stoffel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katrina Stoffel accept?
Health plans from Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Katrina Stoffel as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Katrina Stoffel affiliated with any hospitals?
According to CMS data, Katrina Stoffel is affiliated with Allen Hospital.
When was this NPI record last updated?
The NPPES record for Katrina Stoffel was last updated on February 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Katrina Stoffel, ARNP · NPI 1336556844
Nurse Practitioner physician in Waterloo, Iowa. Individual provider, active in the CMS NPPES registry since July 16, 2014.
## Identity
- **NPI:** 1336556844 (Entity type: Individual)
- **Enumerated:** July 16, 2014
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** A128143 (Iowa)
- **Sole proprietor:** No
## Practice location
- **Address:** 1825 LOGAN AVE, Waterloo, IA 50703-1916
- **Phone:** (319) 235-3629
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Allen Memorial Hospital Corporation (NPI 1346292521, Waterloo, IA); Unitypoint Health - Marshalltown (NPI 1164957593, Marshalltown, IA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** February 22, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1336556844) · Data from the CMS NPPES public registry.