What is Lise Walker's specialty?

Lise Walker (NPI 1821048166) is a Medicare-billing provider whose primary specialty is General Surgery in Glendale, AZ.

Where does Lise Walker practice?

Lise Walker practices in Glendale, AZ, based on the location reported in the CMS Medicare provider datasets for NPI 1821048166.

How much does Medicare pay Lise Walker?

Lise Walker (NPI 1821048166) received approximately $375 in total Medicare Part B payments, serving 12 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1821048166

Lise WalkerM.D.

General SurgeryGlendale, AZI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$375

Peer benchmark

Total Medicare services vs. 455 General Surgery providers in AZ — bottom quintile (cohort median 260).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

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 Lise Walker'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 · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ALPERN, MICHAEL	48	184
Linda Greer Diagnostic Radiology · Phoenix, AZ	43	260
Hedieh Saghari Diagnostic Radiology · Phoenix, AZ	31	134
Donald Christensen Pathology · Phoenix, AZ	28	72
Christopher Stasik Pathology · Phoenix, AZ	18	35
Michael Mcbride Pathology · Phoenix, AZ	16	38

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