CATHERINE POWERS ZELLMER PA
NPI 1861754715
Physician Assistant in Mequon, WI

Active since June 15, 2012PECOS EnrolledAccepts Medicare Assignment
13133 N PORT WASHINGTON RD, SUITE G-16, MEQUON, WI 53097(262) 243-2500(262) 243-5395 Get Directions Write a Review

NPPES record last updated: February 21, 2018. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 21, 2018, Nov 9, 2016 (2 updates tracked since 2016).

About Catherine Powers Zellmer Pa NPPES

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

CATHERINE POWERS ZELLMER PA (NPI 1861754715) is an individual physician assistant in Mequon, Wisconsin, licensed in Wisconsin (2948) and active in the NPI registry since June 2012. She is enrolled in Medicare PECOS, is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, and is a graduate of Other (2012).

NPPES Registry Identity

NPI1861754715
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameCATHERINE POWERS ZELLMERCredential: PA
Location Address13133 N PORT WASHINGTON RD, SUITE G-16Mequon, WI 53097-2419
Mailing Address788 N Jefferson St, Suite 300/attn. Kaaren ButzenMilwaukee, WI 53202-3718 · (414) 272-8950 · Fax (414) 272-0859
Fax(262) 243-5395
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateJune 15, 2012
Last NPPES UpdateFebruary 21, 20182 updates tracked since enumeration
NPI 1861754715 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 · 2948
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.
13133 N PORT WASHINGTON RD, Mequon, WI 53097

Other Identifiers 1

Medicaid1861754715WI

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

Catherine Powers Zellmer Pa 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 ID3072779685
PECOS Enrollment IDI20120726000426
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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
33 services19 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
12 services12 patients

Hospital Affiliations CMS Care Compare

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53097 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.

Nurse Practitioner (Gerontology)
13133 N PORT WASHINGTON RD, SUITE 122
MEQUON, WI 53097
Specialist
13133 N PORT WASHINGTON RD, SUITE 104
MEQUON, WI 53097
Physician Assistant
13133 N PORT WASHINGTON RD, SUITE 104
MEQUON, WI 53097
Internal Medicine (Gastroenterology)
13133 N PORT WASHINGTON RD, SUITE G16
MEQUON, WI 53097
Internal Medicine (Cardiovascular Disease)
13133 N PORT WASHINGTON RD, SUITE 11
MEQUON, WI 53097
Internal Medicine
13133 N PORT WASHINGTON RD, SUITE G18
MEQUON, WI 53097
Nurse Practitioner
13133 N PORT WASHINGTON RD, SUITE G-18
MEQUON, WI 53097
Nurse Practitioner (Adult Health)
13133 N PORT WASHINGTON RD
MEQUON, WI 53097

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 Catherine Zellmer's NPI number?

The NPI number for Catherine Zellmer is 1861754715. It was assigned to this individual provider in the NPPES registry on June 15, 2012.

Where is Catherine Zellmer located?

Catherine Zellmer practices at 13133 N Port Washington Rd Suite G-16, Mequon, WI 53097. The listed phone number is (262) 243-2500.

What is Catherine Zellmer's specialty?

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

Is Catherine Zellmer enrolled in Medicare?

Yes. Catherine Zellmer 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 Catherine Zellmer accept?

Health plans from Network Health list Catherine Zellmer 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 Catherine Zellmer affiliated with any hospitals?

According to CMS data, Catherine Zellmer is affiliated with Ascension Columbia St Mary's Hospital Milwaukee.

When was this NPI record last updated?

The NPPES record for Catherine Zellmer was last updated on February 21, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.