What is Peter Johnson's specialty?

Peter Johnson (NPI 1407948763) is a Medicare-billing provider whose primary specialty is Hematology-Oncology in Waukesha, WI.

Where does Peter Johnson practice?

Peter Johnson practices in Waukesha, WI, based on the location reported in the CMS Medicare provider datasets for NPI 1407948763.

How much does Medicare pay Peter Johnson?

Peter Johnson (NPI 1407948763) received approximately $31K in total Medicare Part B payments, serving 169 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1407948763

Peter JohnsonM.D.

Hematology-OncologyWaukesha, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

349

Unique beneficiaries

—

Total services

604

Distinct HCPCS

Medicare payment

$30K

Peer benchmark

Total Medicare services vs. 202 Hematology-Oncology providers in WI — below median (cohort median 680).

PRESCRIBING · PART D · 2024

Total Rx claims

901

Beneficiaries

—

Total drug cost

$1.7M

Distinct drugs

Brand share

26.6%

Top prescribed drugs

Letrozole131 claims

Exemestane112 claims

Apixaban107 claims

Prochlorperazine Maleate79 claims

Anastrozole76 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Peter Johnson'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). 31 inbound referrers · 40 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Lindsey Sisco Nurse Practitioner · Summit, WI	40	420
Gregory Kass Diagnostic Radiology · Waukesha, WI	36	106
David Yenerich Diagnostic Radiology · Waukesha, WI	32	118
Andrew Adamson Diagnostic Radiology · Wilmington, NC	31	105
John Grogan Diagnostic Radiology · Waukesha, WI	31	102
Kathleen Klaas Diagnostic Radiology · Waukesha, WI	30	72
Amy Hewuse Nurse Practitioner · Waukesha, WI	28	143
Gary Beyer Diagnostic Radiology · Waukesha, WI	26	83
MARTIN, TRACY	26	68
David Roelke Diagnostic Radiology · Waukesha, WI	25	73
Matthew Weinberg Cardiology · Waukesha, WI	23	104
PROHEALTH OCONOMOWOC MEMORIAL HOSPITAL, INC.	21	146

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
PROHEALTH WAUKESHA MEMORIAL HOSPITAL, INC.	235	2,819
Melissa Walker Nurse Practitioner · Waukesha, WI	43	328
Lindsey Sisco Nurse Practitioner · Summit, WI	39	365
Patrick Keller Diagnostic Radiology · Waukesha, WI	38	87
Kathryn Asmus Nurse Practitioner · Waukesha, WI	32	329
John Grogan Diagnostic Radiology · Waukesha, WI	29	67
Kathleen Klaas Diagnostic Radiology · Waukesha, WI	28	57
David Yenerich Diagnostic Radiology · Waukesha, WI	27	96
Andrew Adamson Diagnostic Radiology · Wilmington, NC	26	56
Gregory Francken Diagnostic Radiology · Waukesha, WI	25	59
Amy Hewuse Nurse Practitioner · Waukesha, WI	24	119
PROHEALTH OCONOMOWOC MEMORIAL HOSPITAL, INC.	22	111

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