CRYSTAL H SHIREK PA-C
NPI 1164915971
Physician Assistant in Wausau, WI

Active since June 07, 2018PECOS EnrolledAccepts Medicare Assignment
78.85/100
CMS Quality Rating
2727 PLAZA DR, WAUSAU, WI 54401(715) 847-3000 Get Directions Write a Review

NPPES record last updated: July 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 11, 2025, May 8, 2024, Oct 10, 2023 and 2 more (5 updates tracked since 2021).

About Crystal H Shirek Pa-c NPPES

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

CRYSTAL H SHIREK PA-C (NPI 1164915971) is an individual physician assistant in Wausau, Wisconsin, licensed in Wisconsin (4371) and active in the NPI registry since June 2018. She is enrolled in Medicare PECOS, is affiliated with Marshfield Medical Center, and maintains a secondary practice location in Weston.

NPPES Registry Identity

NPI1164915971
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameCRYSTAL H SHIREKCredential: PA-C
Location Address2727 PLAZA DRWausau, WI 54401-4129
Mailing Address1000 N Oak Ave, Provider Certification - Shp Fl2Marshfield, WI 54449-5703
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateJune 7, 2018
Last NPPES UpdateJuly 11, 20255 updates tracked since enumeration
NPPES CertifiedJuly 11, 2025
NPI 1164915971 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 · 4371
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.
2727 PLAZA DR, Wausau, WI 54401

Secondary Practice Location 1

Location 13400 Ministry PkwyWeston, WI 54476-5220 · Phone (715) 393-1000

Accepted 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

Crystal H Shirek Pa-c 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 ID9739437682
PECOS Enrollment IDI20180808003276
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

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
16 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Marshfield Medical Center

Acute Care Hospitals · Marshfield, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520037
Location611 St Joseph AveMarshfield, WI 54449 · Wood County
Emergency services Birthing friendly

Marshfield Medical Center - Weston

Acute Care Hospitals · Weston, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520202
Location3400 Ministry ParkwayWeston, WI 54476 · Marathon County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54401 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.

78.85/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality66.68
Promoting Interoperability99
Improvement Activities40
Cost54.87

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Adult Health)
2727 PLAZA DR
WAUSAU, WI 54401
Nurse Anesthetist, Certified Registered
2727 PLAZA DR
WAUSAU, WI 54401
Physical Medicine & Rehabilitation
2727 PLAZA DR
WAUSAU, WI 54401
Physician Assistant
2727 PLAZA DR
WAUSAU, WI 54401
Emergency Medicine
2727 PLAZA DR
WAUSAU, WI 54401
Internal Medicine (Rheumatology)
2727 PLAZA DR
WAUSAU, WI 54401
Radiology (Diagnostic Radiology)
2727 PLAZA DR
WAUSAU, WI 54401
Emergency Medicine
2727 PLAZA DR
WAUSAU, WI 54401

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 Crystal Shirek's NPI number?

The NPI number for Crystal Shirek is 1164915971. It was assigned to this individual provider in the NPPES registry on June 7, 2018.

Where is Crystal Shirek located?

Crystal Shirek practices at 2727 Plaza Dr, Wausau, WI 54401. The listed phone number is (715) 847-3000.

What is Crystal Shirek's specialty?

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

Is Crystal Shirek enrolled in Medicare?

Yes. Crystal Shirek 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 Crystal Shirek accept?

Health plans from Anthem Blue Cross and Blue Shield, HealthPartners, Medica, Sanford Health Plan and Security Health Plan list Crystal Shirek 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 Crystal Shirek affiliated with any hospitals?

According to CMS data, Crystal Shirek is affiliated with Marshfield Medical Center and Marshfield Medical Center - Weston.

When was this NPI record last updated?

The NPPES record for Crystal Shirek was last updated on July 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.