MATTHEW J ARMSTRONG APNP
NPI 1326121898
Nurse Practitioner in Appleton, WI
About Matthew J Armstrong Apnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MATTHEW J ARMSTRONG APNP (NPI 1326121898) is an individual nurse practitioner in Appleton, Wisconsin, licensed in Wisconsin (2420-083) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Other Identifiers 2
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)
Matthew J Armstrong Apnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Matthew Armstrong reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- 3,983 clinicians in this Medicare group
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Childrens Specialty Group Inc
- 424 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54913 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
APPLETON, WI 54913
APPLETON, WI 54913
APPLETON, WI 54913
APPLETON, WI 54913
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 Matthew Armstrong's NPI number?
The NPI number for Matthew Armstrong is 1326121898. It was assigned to this individual provider in the NPPES registry on October 20, 2006.
Where is Matthew Armstrong located?
Matthew Armstrong practices at 2575 E Evergreen Drive Pediatric Urology, Appleton, WI 54913. The listed phone number is (920) 969-5353.
What is Matthew Armstrong's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Matthew Armstrong enrolled in Medicare?
Yes. Matthew Armstrong is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Matthew Armstrong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Armstrong reassigns Medicare benefits to 2 organizations: The Medical College Of Wisconsin, Inc. (Milwaukee, WI) and Children's Specialty Group, Inc. (Milwaukee, WI). 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 Matthew Armstrong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Matthew Armstrong accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare) and Network Health list Matthew Armstrong 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.
When was this NPI record last updated?
The NPPES record for Matthew Armstrong was last updated on July 10, 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.
# Matthew J Armstrong, APNP · NPI 1326121898
Nurse Practitioner physician in Appleton, Wisconsin. Individual provider, active in the CMS NPPES registry since October 20, 2006.
## Identity
- **NPI:** 1326121898 (Entity type: Individual)
- **Enumerated:** October 20, 2006
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 2420-083 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 2575 E EVERGREEN DRIVE, PEDIATRIC UROLOGY, Appleton, WI 54913-8904
- **Phone:** (920) 969-5353 · **Fax:** (414) 337-7201
## 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): The Medical College Of Wisconsin, Inc. (NPI 1699720086, Milwaukee, WI); Children's Specialty Group, Inc. (NPI 1942970405, Milwaukee, WI) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 10, 2023
- **Other identifiers:** Medicaid 1326121898 (WI); Medicaid 41192600 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1326121898) · Data from the CMS NPPES public registry.