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MAGGIE GIERAHN
NPI 1447746896
Physician Assistant in Milwaukee, WI

Active since July 09, 2018PECOS EnrolledAccepts Medicare Assignment
75.75/100
CMS Quality Rating
2350 N LAKE DR STE 201, MILWAUKEE, WI 53211(414) 298-7133 Get Directions Write a Review

NPPES record last updated: January 22, 2022. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Jan 22, 2022, Sep 4, 2018, Jul 9, 2018 (3 updates tracked since 2018).

About Maggie Gierahn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MAGGIE GIERAHN (NPI 1447746896) is an individual physician assistant in Milwaukee, Wisconsin, licensed in Wisconsin (4395) and active in the NPI registry since July 2018. She is enrolled in Medicare PECOS, is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1447746896
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMAGGIE GIERAHN
Location Address2350 N LAKE DR STE 201Milwaukee, WI 53211-4528
Mailing Address2350 N Lake Dr Ste 201Milwaukee, WI 53211-4528 · (414) 298-7133
Phone(414) 298-7133
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateJuly 9, 2018
Last NPPES UpdateJanuary 22, 20223 updates tracked since enumeration
NPPES CertifiedJanuary 22, 2022
✔ NPI 1447746896 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in WI · 4395
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
2350 N LAKE DR STE 201, Milwaukee, WI 53211
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare), Network Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Maggie Gierahn is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2961751623
PECOS Enrollment IDI20180814002744
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.

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension Columbia St Mary's Hospital Milwaukee

Acute Care Hospitals · Milwaukee, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520051
Location2323 N Lake DrMilwaukee, WI 53211 · Milwaukee County
Emergency services Birthing friendly

Ascension St Francis Hospital

Acute Care Hospitals · Milwaukee, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520078
Location3237 S 16th StMilwaukee, WI 53215 · Milwaukee County
Emergency services

Ascension All Saints Hospital

Acute Care Hospitals · Racine, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520096
Location3801 Spring StRacine, WI 53405 · Racine County
Emergency services Birthing friendly

Ascension SE Wisconsin Hospital

Acute Care Hospitals · Milwaukee, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520136
Location5000 W Chambers StMilwaukee, WI 53210 · Milwaukee County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53211 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
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

75.75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality78.16
Promoting Interoperability76
Improvement Activities40
Cost57.63

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 Maggie Gierahn's NPI number?

The NPI number for Maggie Gierahn is 1447746896. It was assigned to this individual provider in the NPPES registry on July 9, 2018.

Where is Maggie Gierahn located?

Maggie Gierahn practices at 2350 N Lake Dr Ste 201, Milwaukee, WI 53211. The listed phone number is (414) 298-7133.

What is Maggie Gierahn's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Maggie Gierahn enrolled in Medicare?

Yes. Maggie Gierahn is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Maggie Gierahn accept?

Health plans from Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare) and Network Health list Maggie Gierahn 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.

Is Maggie Gierahn affiliated with any hospitals?

According to CMS data, Maggie Gierahn is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, Ascension St Francis Hospital, Ascension All Saints Hospital and Ascension SE Wisconsin Hospital.

When was this NPI record last updated?

The NPPES record for Maggie Gierahn was last updated on January 22, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.