JILL M GREVENOW NP
NPI 1124337043
Nurse Practitioner - Pediatrics in Milwaukee, WI
About Jill M Grevenow Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JILL M GREVENOW NP (NPI 1124337043) is an individual pediatrics provider in Milwaukee, Wisconsin, licensed in Wisconsin (147817) and active in the NPI registry since September 2010. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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)
Jill M Grevenow Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Jill Grevenow 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53226 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.
Other Providers at the Same Location NPPES 18
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
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 Jill Grevenow's NPI number?
The NPI number for Jill Grevenow is 1124337043. It was assigned to this individual provider in the NPPES registry on September 27, 2010. The provider is also known as Jill M Wallander.
Where is Jill Grevenow located?
Jill Grevenow practices at 999 N 92nd St Pediatric Special Needs, Milwaukee, WI 53226. The listed phone number is (414) 337-7158.
What is Jill Grevenow's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.
Is Jill Grevenow enrolled in Medicare?
Yes. Jill Grevenow is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Jill Grevenow's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jill Grevenow 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 Jill Grevenow's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jill Grevenow accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare) and Network Health list Jill Grevenow 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 Jill Grevenow was last updated on July 29, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Jill M Grevenow, NP · NPI 1124337043
Pediatrics physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since September 27, 2010.
## Identity
- **NPI:** 1124337043 (Entity type: Individual)
- **Enumerated:** September 27, 2010
- **Primary specialty:** Nurse Practitioner - Pediatrics · taxonomy 363LP0200X
- **State license:** 147817 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 999 N 92ND ST, PEDIATRIC SPECIAL NEEDS, Milwaukee, WI 53226-4875
- **Phone:** (414) 337-7158 · **Fax:** (414) 266-2926
## 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): Children's Specialty Group, Inc. (NPI 1942970405, Milwaukee, WI); The Medical College Of Wisconsin, Inc. (NPI 1699720086, Milwaukee, WI) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 29, 2013
- **Other identifiers:** Medicaid 1124337043 (WI); Medicare PIN 73601 1924 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1124337043) · Data from the CMS NPPES public registry.