JAMES L ARMSTRONG NP
NPI 1477518140
Nurse Practitioner in Prairie Du Sac, WI
About James L Armstrong Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES L ARMSTRONG NP (NPI 1477518140) is an individual nurse practitioner in Prairie Du Sac, Wisconsin, licensed in Wisconsin (2347) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Ssm Health St Clare Hospital - Baraboo, and is a graduate of University Of Wisconsin School Of Medicine (2003).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
James L Armstrong Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show James Armstrong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Prairie Du Sac, WI 53578
- Reassigned Medicare billing, Wisconsin enrollment
- 110 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 5
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ssm Health St Clare Hospital - Baraboo
Acute Care Hospitals · Baraboo, WISauk Prairie Hospital
Acute Care Hospitals · Prairie Du Sac, WIUniversity Of Wi Hospitals & Clinics Authority
Acute Care Hospitals · Madison, WIRichland Hospital
Critical Access Hospitals · Richland Center, WIReedsburg Area Medical Center
Critical Access Hospitals · Reedsburg, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53578 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.
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 James Armstrong's NPI number?
The NPI number for James Armstrong is 1477518140. It was assigned to this individual provider in the NPPES registry on April 18, 2006.
Where is James Armstrong located?
James Armstrong practices at 260 26th St, Prairie Du Sac, WI 53578. The listed phone number is (608) 643-2471.
What is James Armstrong's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is James Armstrong enrolled in Medicare?
Yes. James Armstrong is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for James Armstrong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Armstrong reassigns Medicare benefits to Sauk Prairie Healthcare Inc (Prairie Du Sac, WI). The 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 James Armstrong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Armstrong accept?
Health plans from Aspirus Health Plan, Dean Health Plan, Group Health Cooperative-SCW and Quartz list James 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.
Is James Armstrong affiliated with any hospitals?
According to CMS data, James Armstrong is affiliated with Ssm Health St Clare Hospital - Baraboo, Sauk Prairie Hospital, University Of Wi Hospitals & Clinics Authority, Richland Hospital and Reedsburg Area Medical Center.
When was this NPI record last updated?
The NPPES record for James Armstrong was last updated on March 24, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.