GINA RATZLOW APNP
NPI 1730722166
Nurse Practitioner - Primary Care in Greenfield, WI
About Gina Ratzlow Apnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GINA RATZLOW APNP (NPI 1730722166) is an individual primary care provider in Greenfield, Wisconsin, licensed in Wisconsin (196508) and active in the NPI registry since October 2019. She is enrolled in Medicare PECOS and maintains a secondary practice location in Milwaukee.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gina Ratzlow Apnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Gina Ratzlow 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
Menomonee Falls, WI 53051
- Reassigned Medicare billing, Wisconsin enrollment
- 2,294 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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53220 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
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 Gina Ratzlow's NPI number?
The NPI number for Gina Ratzlow is 1730722166. It was assigned to this individual provider in the NPPES registry on October 17, 2019.
Where is Gina Ratzlow located?
Gina Ratzlow practices at 5800 W. Layton Ave, Greenfield, WI 53220. The listed phone number is (262) 532-3067.
What is Gina Ratzlow's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Primary Care, with taxonomy code 363LP2300X.
Is Gina Ratzlow enrolled in Medicare?
Yes. Gina Ratzlow is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Gina Ratzlow's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gina Ratzlow reassigns Medicare benefits to 2 organizations: The Medical College Of Wisconsin, Inc. (Milwaukee, WI) and Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, 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 Gina Ratzlow'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 Gina Ratzlow was last updated on August 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.
# Gina Ratzlow, APNP · NPI 1730722166
Primary Care physician in Greenfield, Wisconsin. Individual provider, active in the CMS NPPES registry since October 17, 2019.
## Identity
- **NPI:** 1730722166 (Entity type: Individual)
- **Enumerated:** October 17, 2019
- **Primary specialty:** Nurse Practitioner - Primary Care · taxonomy 363LP2300X
- **State license:** 196508 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 5800 W. LAYTON AVE, Greenfield, WI 53220
- **Phone:** (262) 532-3067
## 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); Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (NPI 1568787448, Menomonee Falls, WI) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 15, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1730722166) · Data from the CMS NPPES public registry.