What is David Walker's specialty?

David Walker (NPI 1639142508) is a Medicare-billing provider whose primary specialty is Internal Medicine in Sheridan, WY.

Where does David Walker practice?

David Walker practices in Sheridan, WY, based on the location reported in the CMS Medicare provider datasets for NPI 1639142508.

How much does Medicare pay David Walker?

David Walker (NPI 1639142508) received approximately $221K in total Medicare Part B payments, serving 714 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1639142508

David WalkerDO

Internal MedicineSheridan, WYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,596

Unique beneficiaries

—

Total services

4,782

Distinct HCPCS

Medicare payment

$207K

Peer benchmark

Total Medicare services vs. 83 Internal Medicine providers in WY — top quintile (cohort median 851).

PRESCRIBING · PART D · 2024

Total Rx claims

10,590

Beneficiaries

—

Total drug cost

$974K

Distinct drugs

144

Brand share

20.4%

Top prescribed drugs

Levothyroxine Sodium701 claims

Pantoprazole Sodium427 claims

Amlodipine Besylate358 claims

Rosuvastatin Calcium344 claims

Losartan Potassium321 claims

QUALITY · MIPS · 2024

Final MIPS score

86.7

Quality

82.1

Cost

75.1

Improvement activities

40.0

Promoting interop.

98.0

Payment adjustment

0.49%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$665

Payment records

By payment type

Food and Beverage$665

Top paying entities

Food and Beverage$665

REFERRAL NETWORK

Where David 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). 27 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MEMORIAL HOSPITAL OF SHERIDAN COUNTY	442	2,430
William Taylor Diagnostic Radiology · Sheridan, WY	284	1,069
Jason Ackerman Internal Medicine · Sheridan, WY	79	259
Ian Hunter Hospitalist · Gainesville, GA	76	352
Irving Robinson Emergency Medicine · Sheridan, WY	67	206
Derek Gilbert Family Practice · Sheridan, WY	65	194
Joseph Garcia Interventional Cardiology · Sheridan, WY	58	244
Hannah Hall Internal Medicine · Sheridan, WY	57	200
Kimberlee Williams Nurse Practitioner · Sheridan, WY	56	264
SELDE, WILLIAM	44	131
BILLINGS CLINIC	41	117
Stephen Holst Urology · Sheridan, WY	36	156

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