KATIE SULLIVAN MD
NPI 1730715830
Pediatrics - Pediatric Nephrology in Milwaukee, WI
About Katie Sullivan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATIE SULLIVAN MD (NPI 1730715830) is an individual pediatric nephrology provider in Milwaukee, Wisconsin, licensed in Wisconsin (82149) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS.
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 (PECOS)
Katie Sullivan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Katie Sullivan 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
- Medicare enrollment name: Childrens Specialty Group Inc
- 424 clinicians in this Medicare group
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- 3,983 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.
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.
Other Providers at the Same Location NPPES 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
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 Katie Sullivan's NPI number?
The NPI number for Katie Sullivan is 1730715830. It was assigned to this individual provider in the NPPES registry on March 20, 2020.
Where is Katie Sullivan located?
Katie Sullivan practices at 9000 W Wisconsin Avenue Division Of Pediatric Nephrology, Milwaukee, WI 53226. The listed phone number is (414) 337-7140.
What is Katie Sullivan's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Nephrology, with taxonomy code 2080P0210X.
Is Katie Sullivan enrolled in Medicare?
Yes. Katie Sullivan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Katie Sullivan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katie Sullivan reassigns Medicare benefits to 2 organizations: Children's Specialty Group, Inc. (Milwaukee, WI) and The Medical College Of Wisconsin, 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 Katie Sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katie Sullivan accept?
Health plans from CareSource (Common Ground Healthcare) list Katie Sullivan 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 Katie Sullivan was last updated on September 1, 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.