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 1073548459

William ShafferMD

PRACTICEALLINA HEALTH SYSTEMSee all providers at this practice →
Internal MedicineBloomington, MNI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
REFERRAL NETWORK

Where William Shaffer'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). 3 inbound referrers · 12 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
KIMPELL, RANDY1645
PLUNKETT, MICHAEL1658
Harry Fernandes
Internal Medicine · Bloomington, MN
1258
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
ALLINA HEALTH SYSTEM132784
ALLINA HEALTH SYSTEM45183
PLUNKETT, MICHAEL34104
KIMPELL, RANDY1753
Harry Fernandes
Internal Medicine · Bloomington, MN
1772
Tilok Ghose
Orthopedic Surgery · Bloomington, MN
17108
Kent Bratten
Internal Medicine · Bloomington, MN
1739
ALLINA HEALTH SYSTEM1671
THORNE, IRVING13100
Timothy Eggimann
Optometry · Coon Rapids, MN
1244
FAIRVIEW HEALTH SERVICES1169
WYMORE, PAMELA1136
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.
PRESCRIBING · PART D · 2024
Total Rx claims
3,685
Beneficiaries
—
Total drug cost
$261K
Distinct drugs
69
Brand share
18.6%
Top prescribed drugs
Atorvastatin Calcium402 claims
Amlodipine Besylate219 claims
Metoprolol Succinate167 claims
Levothyroxine Sodium163 claims
Omeprazole161 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
671
Unique beneficiaries
—
Total services
716
Distinct HCPCS
16
Medicare payment
$16K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,849 Internal Medicine providers in MN — top quintile (cohort median 405).
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.