Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

GINA RATZLOW APNP
NPI 1730722166
Nurse Practitioner - Primary Care in Greenfield, WI

Q: 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.

Q: What is Gina Ratzlow's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Primary Care, with taxonomy code 363LP2300X.

Q: 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 20 days 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.

Active since October 17, 2019PECOS Enrolled

5800 W. LAYTON AVE, GREENFIELD, WI 53220(262) 532-3067 Get Directions Write a Review

NPPES record last updated: August 15, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Aug 15, 2026, Nov 14, 2025, Oct 22, 2019 and 1 more (4 updates tracked since 2019).

On this page

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

NPI1730722166

Entity TypeIndividualFemale

Primary Taxonomy363LP2300X

Provider Legal NameGINA RATZLOWCredential: APNP

Location Address5800 W. LAYTON AVEGreenfield, WI 53220

Mailing Address9200 W Wisconsin AveMilwaukee, WI 53226-3522 · (414) 805-3666

Phone(262) 532-3067

Sole ProprietorNo

Enumeration DateOctober 17, 2019

Last NPPES UpdateAugust 15, 20264 updates tracked since enumeration

NPPES CertifiedAugust 15, 2026

✔ NPI 1730722166 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Primary CarePhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP2300X

License✔ Licensed in WI · 196508

Also ListedRegistered NurseTaxonomy 163W00000X · License 196508 (WI)

5800 W. LAYTON AVE, Greenfield, WI 53220

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Secondary Practice Location 1

Location 19200 W Wisconsin AveMilwaukee, WI 53226-3522 · Phone (414) 805-3666

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gina Ratzlow Apnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

20 services20 patients

Influenza vaccine, inactivated 90653

The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.

18 services18 patients

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.

New Patient

$82.92 typical visit price

range $53.90 – $163.24

Typical copayment $20.73 (range $13.47 – $40.81)

Most-billed visit code 99203

Established Patient

$95.41 typical visit price

range $17.40 – $133.76

Typical copayment $23.85 (range $4.35 – $33.44)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

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 20 days 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.