JOHN T SIEBERS
NPI 1376948638
Nurse Practitioner - Family in Appleton, WI
About John T Siebers NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN T SIEBERS (NPI 1376948638) is an individual family provider in Appleton, Wisconsin, licensed in Wisconsin (109608) and active in the NPI registry since October 2014. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John T Siebers is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Siebers reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Middleton, WI 53562
- Reassigned Medicare billing, Wisconsin enrollment
- 16 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 54911 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
APPLETON, WI 54911
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 John Siebers's NPI number?
The NPI number for John Siebers is 1376948638. It was assigned to this individual provider in the NPPES registry on October 29, 2014.
Where is John Siebers located?
John Siebers practices at 3329 N Richmond St, Appleton, WI 54911. The listed phone number is (920) 380-2715.
What is John Siebers's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is John Siebers enrolled in Medicare?
Yes. John Siebers is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Siebers's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Siebers reassigns Medicare benefits to Pivotal Health, Inc. (Middleton, 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 John Siebers's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Siebers was last updated on December 10, 2020. 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.