What is John Charlson's specialty?

John Charlson (NPI 1386668192) is a Medicare-billing provider whose primary specialty is Medical Oncology in Milwaukee, WI.

Where does John Charlson practice?

John Charlson practices in Milwaukee, WI, based on the location reported in the CMS Medicare provider datasets for NPI 1386668192.

How much does Medicare pay John Charlson?

John Charlson (NPI 1386668192) received approximately $27K in total Medicare Part B payments, serving 124 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1386668192

John CharlsonM.D.

Medical OncologyMilwaukee, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

227

Unique beneficiaries

—

Total services

529

Distinct HCPCS

Medicare payment

$24K

Peer benchmark

Total Medicare services vs. 48 Medical Oncology providers in WI — below median (cohort median 579).

PRESCRIBING · PART D · 2024

Total Rx claims

237

Beneficiaries

—

Total drug cost

$793K

Distinct drugs

Brand share

17.3%

Top prescribed drugs

Imatinib Mesylate89 claims

Ondansetron Hcl36 claims

Letrozole17 claims

Tramadol Hcl16 claims

Bumetanide15 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 · 2024

Total received

$19K

Payment records

By payment type

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$9K

Consulting Fee$4K

Honoraria$4K

Travel and Lodging$2K

Food and Beverage$460

Top paying entities

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$9K

Consulting Fee$4K

Honoraria$4K

Travel and Lodging$2K

Food and Beverage$460

REFERRAL NETWORK

Where John Charlson'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). 17 inbound referrers · 30 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
FROEDTERT MEMORIAL LUTHERAN HOSPITAL, INC.	207	3,844
WAUGH, JULIE	44	130
Dhiraj Baruah Diagnostic Radiology · Ardmore, PA	21	62
Sujan Fernando Diagnostic Radiology · Milwaukee, WI	21	136
Kathryn Bylow Hematology-Oncology · Milwaukee, WI	21	131
MALMSTEN, CATHARINE	18	74
FOLEY, WILLIAM	17	100
Evgueni Fayn Clinical Cardiac Electrophysiology · Milwaukee, WI	17	68
WEIN, MELISSA	16	44
James Thomas Hematology-Oncology · Milwaukee, WI	15	156
Stuart Wong Hematology-Oncology · Milwaukee, WI	15	61
Kaushik Shahir Diagnostic Radiology · Milwaukee, WI	15	67

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
FROEDTERT MEMORIAL LUTHERAN HOSPITAL, INC.	121	2,625
Wisconsin Diagnostic Laboratories Llc Clinical Laboratory · Milwaukee, WI	21	87
GOODMAN, LAWRENCE	20	61
HORIZON HOME CARE & HOSPICE, INC.	19	66
WIGER, KRISTA	19	115
Kathryn Bylow Hematology-Oncology · Milwaukee, WI	19	146
Keith Baynes Radiation Oncology · La Crosse, WI	19	76
Kaushik Shahir Diagnostic Radiology · Milwaukee, WI	19	78
Guillermo Carrera Diagnostic Radiology · Milwaukee, WI	19	43
Ben George Hematology-Oncology · Rochester, MN	18	128
WAUGH, JULIE	18	81
Stuart Wong Hematology-Oncology · Milwaukee, WI	16	74

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