What is Katie Zellner's specialty?

Katie Zellner (NPI 1477888006) is a Medicare-billing provider whose primary specialty is Physician Assistant in Milwaukee, WI.

Where does Katie Zellner practice?

Katie Zellner practices in Milwaukee, WI, based on the location reported in the CMS Medicare provider datasets for NPI 1477888006.

How much does Medicare pay Katie Zellner?

Katie Zellner (NPI 1477888006) received approximately $7K in total Medicare Part B payments, serving 69 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1477888006

Katie ZellnerPA-C

Physician AssistantMilwaukee, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

119

Distinct HCPCS

Medicare payment

$4K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

2,063

Beneficiaries

—

Total drug cost

$9.5M

Distinct drugs

Brand share

43.7%

Top prescribed drugs

Acyclovir528 claims

Ruxolitinib Phosphate329 claims

Sulfamethoxazole/Trimethoprim150 claims

Penicillin V Potassium84 claims

Belumosudil Mesylate68 claims

QUALITY · MIPS · 2024

Final MIPS score

88.0

Quality

82.8

Cost

77.2

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.55%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Katie Zellner'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). 6 inbound referrers · 3 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
FROEDTERT MEMORIAL LUTHERAN HOSPITAL, INC.	47	525
Sayed Mehdi Hamadani Hematology-Oncology · Milwaukee, WI	28	402
HARI, PARAMESWARAN	20	229
Jess Peterson Pathology · Rochester, MN	20	25
Saul Suster Pathology · Milwaukee, WI	16	38
HELLMAN, ROBERT	13	16

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
FROEDTERT MEMORIAL LUTHERAN HOSPITAL, INC.	43	464
Sayed Mehdi Hamadani Hematology-Oncology · Milwaukee, WI	27	398
HARI, PARAMESWARAN	18	230

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events