What is Mary Keller's specialty?

Mary Keller (NPI 1992727259) is a Medicare-billing provider whose primary specialty is Nurse Practitioner in Milwaukee, WI.

Where does Mary Keller practice?

Mary Keller practices in Milwaukee, WI, based on the location reported in the CMS Medicare provider datasets for NPI 1992727259.

How much does Medicare pay Mary Keller?

Mary Keller (NPI 1992727259) received approximately $14K in total Medicare Part B payments, serving 79 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1992727259

Mary KellerAPNP

PRACTICEMILWAUKEE NEPHROLOGISTS, S.C.See all providers at this practice →

Nurse PractitionerMilwaukee, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

299

Distinct HCPCS

Medicare payment

$14K

Peer benchmark

Total Medicare services vs. 4,237 Nurse Practitioner providers in WI — above median (cohort median 212).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

84.7

Quality

65.3

Cost

82.4

Improvement activities

40.0

Promoting interop.

65.0

Payment adjustment

0.41%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$842

Payment records

By payment type

Food and Beverage$820

Education$22

Top paying entities

Food and Beverage$820

Education$22

REFERRAL NETWORK

Where Mary Keller'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). 32 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Manohar Ahuja Nephrology · Milwaukee, WI	55	125
Robert Zilke Nurse Practitioner · Milwaukee, WI	51	112
Kevin Tucker Nephrology · Milwaukee, WI	39	82
Bell Ambulance, Inc. Ambulance Service Provider · Milwaukee, WI	33	90
Robert Neimon Diagnostic Radiology · Milwaukee, WI	29	71
Ryan Hilbelink Diagnostic Radiology · St Francis, WI	26	42
Joseph Whitnah Diagnostic Radiology · New Berlin, WI	24	48
Laura Schmidt Nurse Practitioner · Waukesha, WI	23	32
Madhu Sadagopan Diagnostic Radiology · St Francis, WI	23	40
Alok Goyal Internal Medicine · Milwaukee, WI	23	398
William Macdonald Diagnostic Radiology · St Francis, WI	22	42
NPI 1417930827	22	43

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events