What is Walter Longo's specialty?

Walter Longo (NPI 1629044649) is a Medicare-billing provider whose primary specialty is Hematology-Oncology in Milwaukee, WI.

Where does Walter Longo practice?

Walter Longo practices in Milwaukee, WI, based on the location reported in the CMS Medicare provider datasets for NPI 1629044649.

How much does Medicare pay Walter Longo?

Walter Longo (NPI 1629044649) received approximately $34K in total Medicare Part B payments, serving 144 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1629044649

Walter LongoMD

PRACTICEMEDICAL COLLEGE OF WISCONSINSee all providers at this practice →

Hematology-OncologyMilwaukee, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

147

Unique beneficiaries

—

Total services

438

Distinct HCPCS

Medicare payment

$27K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

355

Beneficiaries

—

Total drug cost

$1.2M

Distinct drugs

Brand share

51.3%

Top prescribed drugs

Acyclovir63 claims

Sulfamethoxazole/Trimethoprim59 claims

Fluconazole32 claims

Ruxolitinib Phosphate27 claims

Apixaban27 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

Total received

$150

Payment records

By payment type

Consulting Fee$150

Top paying entities

Consulting Fee$150

REFERRAL NETWORK

Where Walter Longo'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). 7 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
DIVINE SAVIOR HEALTHCARE, INC.	45	433
Alan Bridges Pathology · Madison, WI	39	205
Vaishalee Kenkre Hematopoietic Cell Transplantation and Cellular Therapy · Madison, WI	16	167
Lindell Gentry Neurology · Madison, WI	14	69
Cristopher Meyer Diagnostic Radiology · Middleton, WI	14	53
Craig Magnes Diagnostic Radiology · Portage, WI	12	37
Timothy Ziemlewicz Diagnostic Radiology · Madison, WI	12	58

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