PROVIDER PROFILE · NPI 1861754715

Catherine ZellmerPA

Physician AssistantMequon, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$3K

Peer benchmark

Total Medicare services vs. 2,745 Physician Assistant providers in WI — bottom quintile (cohort median 189).

PRESCRIBING · PART D · 2024

Total Rx claims

415

Beneficiaries

—

Total drug cost

$230K

Distinct drugs

Brand share

84.1%

Top prescribed drugs

Metformin Hcl104 claims

Tirzepatide73 claims

Dulaglutide64 claims

Bupropion Hcl57 claims

Naltrexone Hcl35 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$36

Payment records

By payment type

Food and Beverage$36

Top paying entities

Food and Beverage$36

REFERRAL NETWORK

Where Catherine Zellmer's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 5 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
COLUMBIA ST MARY'S HOSPITAL OZAUKEE, INC.	111	477
ELGIN, DREW	27	127
Benjamin Broghammer Diagnostic Radiology · Mequon, WI	23	49
Jacqueline Jahnke Diagnostic Radiology · St Francis, WI	14	28
FROEDTERT MEMORIAL LUTHERAN HOSPITAL, INC.	12	34

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history