What is Donald Walker's specialty?

Donald Walker (NPI 1669664033) is a Medicare-billing provider whose primary specialty is Interventional Radiology in Knoxville, TN.

Where does Donald Walker practice?

Donald Walker practices in Knoxville, TN, based on the location reported in the CMS Medicare provider datasets for NPI 1669664033.

How much does Medicare pay Donald Walker?

Donald Walker (NPI 1669664033) received approximately $107K in total Medicare Part B payments, serving 1,665 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1669664033

Donald WalkerMD

Interventional RadiologyKnoxville, TNI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,293

Unique beneficiaries

—

Total services

2,372

Distinct HCPCS

Medicare payment

$70K

Peer benchmark

Total Medicare services vs. 44 Interventional Radiology providers in TN — above median (cohort median 1,796).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

94.2

Quality

89.4

Cost

100.0

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.81%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$2K

Payment records

By payment type

Travel and Lodging$1K

Food and Beverage$525

Top paying entities

Travel and Lodging$1K

Food and Beverage$525

REFERRAL NETWORK

Where Donald 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). 169 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ST. JOSEPH MEDICAL CENTER	1,343	3,218
ST. MARY'S MEDICAL CENTER	592	1,289
Charles Horner Diagnostic Radiology · Kansas City, MO	392	1,867
Patrick O'toole Diagnostic Radiology · Kansas City, MO	383	1,017
Richard Kuckelman Diagnostic Radiology · Kansas City, MO	313	821
Timothy Mihalovich Diagnostic Radiology · Kansas City, MO	271	595
Luke Wilson Diagnostic Radiology · Kansas City, MO	225	493
Jin Park Cardiology · Kansas City, MO	194	433
Michael Liston Cardiology · Blue Springs, MO	189	379
Marco Mazzella Cardiology · Grandview, MO	189	465
William Sudholt Internal Medicine · Blue Springs, MO	177	487
Anil Lakshman Internal Medicine · Ocoee, FL	155	487

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