caretrace.iopowered by▸healthparse
SearchCohort Builder
Tools▾
KOL FinderTerritoriesDrug Compare
AI Query
Browse▾
By stateBy specialty
Pricing
SearchCohort BuilderToolsKOL FinderTerritoriesDrug CompareAI QueryBrowseBy stateBy specialtyPricing
PROVIDER PROFILE · NPI 1326043266

Donald Williams

PRACTICEROCK RIVER COMMUNITY CLINIC INCSee all providers at this practice →
Internal MedicineWhitewater, WII
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
MEDICARE UTILIZATION · PART B · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
111
Beneficiaries
—
Total drug cost
$2K
Distinct drugs
7
Brand share
0.0%
Top prescribed drugs
Atorvastatin Calcium26 claims
Levothyroxine Sodium22 claims
Tamsulosin Hcl15 claims
Sertraline Hcl13 claims
Lisinopril12 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Donald Williams'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). 63 inbound referrers · 123 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Scott Schlais
Emergency Medicine · Fort Atkinson, WI
127350
SIEVERT, ROBERT95271
Lynn Broderick
Diagnostic Radiology · Madison, WI
92148
Brian Markhardt
Diagnostic Radiology · Madison, WI
78130
Ryan Bros Fort Atkinson Llc
Ambulance Service Provider · Fort Atkinson, WI
71138
SSM HEALTH CARE OF WISCONSIN, INC.62132
Bora Ozel
Diagnostic Radiology · Madison, WI
59109
Peter Chase
Diagnostic Radiology · Madison, WI
5284
Elizabeth Teigen
Diagnostic Radiology · Madison, WI
5163
KENG, GEORGE50195
MEYER, RONALD48235
City Of Whitewater
Ambulance Service Provider · Whitewater, WI
4279
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
FORT HEALTHCARE, INC.1,1416,545
Thomas Tackman
Internal Medicine · Fort Atkinson, WI
131487
Laura Koenig
Internal Medicine · Fort Atkinson, WI
95279
Ryan Bros Ambulance Llc
Ambulance Service Provider · Madison, WI
87171
MEYER, RONALD87270
UNIVERSITY OF WISCONSIN HOSPITALS AND CLINICS AUTHORITY86223
Edward Borman
Diagnostic Radiology · Madison, WI
85121
Charles Stepherson
Diagnostic Radiology · Madison, WI
82140
KENG, GEORGE80251
Nathaniel Fullerton
Internal Medicine · Fort Atkinson, WI
79129
SSM HEALTH CARE OF WISCONSIN, INC.75178
Amna Buttar
Geriatric Medicine · Madison, WI
73148
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.