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THERESA JEAN NIEMCZYK PA-C
NPI 1366744716
Physician Assistant in Greenfield, WI

Active since November 17, 2010PECOS Enrolled
4131 W LOOMIS RD, SUITE 300, GREENFIELD, WI 53221(414) 325-7246(414) 325-3770 Get Directions Write a Review

NPPES record last updated: June 23, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 23, 2016, Dec 15, 2015 (2 updates tracked since 2015).

About Theresa Jean Niemczyk Pa-c NPPES

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

THERESA JEAN NIEMCZYK PA-C (NPI 1366744716) is an individual physician assistant in Greenfield, Wisconsin, licensed in Wisconsin (384-23) and active in the NPI registry since November 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1366744716
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameTHERESA JEAN NIEMCZYKCredential: PA-C
Location Address4131 W LOOMIS RD, SUITE 300Greenfield, WI 53221-2057
Mailing Address4131 W Loomis Rd, Suite 300Greenfield, WI 53221-2057 · (414) 325-7246 · Fax (414) 325-3770
Phone(414) 325-7246
Fax(414) 325-3770
Sole ProprietorNo
Enumeration DateNovember 17, 2010
Last NPPES UpdateJune 23, 20162 updates tracked since enumeration
✔ NPI 1366744716 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in WI · 384-23
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.
Also ListedPhysician Assistant · MedicalTaxonomy 363AM0700X · License 384-023 (WI)
4131 W LOOMIS RD, Greenfield, WI 53221
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Theresa Jean Niemczyk Pa-c 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53221 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.

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.

ELIZABETH A MAJSZAK PT
Physical Therapist
4131 W LOOMIS RD
GREENFIELD, WI 53221
Milwaukee County (414) 281-5151
DR. KOSTANDINOS TSOULFAS MD
Pain Medicine (Pain Medicine)
4131 W LOOMIS RD, #300
GREENFIELD, WI 53221
Milwaukee County (414) 325-7246
JESSICA R GERTZ PT
Physical Therapist
4131 W LOOMIS RD, #200
GREENFIELD, WI 53221
Milwaukee County (414) 281-5151
JANE A KUNST APNP
Nurse Practitioner
4131 W LOOMIS RD, SUITE 300
GREENFIELD, WI 53221
Milwaukee County (414) 325-7246
MARSELA MITRE
Physical Therapy Assistant
4131 W LOOMIS RD
GREENFIELD, WI 53221
Milwaukee County (414) 281-5151
MS. HEIDI R HOCHHAUSEN APNP
Nurse Practitioner
4131 W LOOMIS RD, SUITE 300
GREENFIELD, WI 53221
Milwaukee County (414) 325-7246
MS. CYNTHIA LEE SAARIO APNP
Nurse Practitioner (Adult Health)
4131 W LOOMIS RD, SUITE 300
GREENFIELD, WI 53221
Milwaukee County (414) 325-7246
DR. SCOTT ASCHENBRENER M.D.
Anesthesiology
4131 W LOOMIS RD, STE 300
GREENFIELD, WI 53221
Milwaukee County (414) 325-7246

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 Theresa Niemczyk's NPI number?

The NPI number for Theresa Niemczyk is 1366744716. It was assigned to this individual provider in the NPPES registry on November 17, 2010.

Where is Theresa Niemczyk located?

Theresa Niemczyk practices at 4131 W Loomis Rd Suite 300, Greenfield, WI 53221. The listed phone number is (414) 325-7246.

What is Theresa Niemczyk's specialty?

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

Is Theresa Niemczyk enrolled in Medicare?

Yes. Theresa Niemczyk is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Theresa Niemczyk was last updated on June 23, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.