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 1477591634

William DierenfeldtMD

GastroenterologyManhattan, KSI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
665
Beneficiaries
—
Total drug cost
$16K
Distinct drugs
13
Brand share
9.3%
Top prescribed drugs
Pantoprazole Sodium340 claims
Omeprazole140 claims
Famotidine25 claims
Budesonide21 claims
Dicyclomine Hcl21 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
949
Unique beneficiaries
—
Total services
973
Distinct HCPCS
11
Medicare payment
$118K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 68 Gastroenterology providers in KS — above median (cohort median 1,124).
REFERRAL NETWORK

Where William Dierenfeldt'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). 23 inbound referrers · 43 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Joyce Kovar
Pathology · Omaha, NE
53122
Gregory Welle
Diagnostic Radiology · Manhattan, KS
46111
Laboratory Corporation Of America
Clinical Laboratory · Dallas, TX
3281
Priyantha Ranaweera
Cardiology · Manhattan, KS
2363
Fadi Bedros
Nephrology · Manhattan, KS
22159
WAMEGO HOSPITAL ASSOCIATION2154
Casey Poell
Internal Medicine · Manhattan, KS
2055
CLAY COUNTY MEDICAL CENTER2079
Daniel Roeder
Emergency Medicine · Frankfort, KS
1858
Harold Taylor
Hospitalist · Lawrence, KS
1853
Matthew Foster
Emergency Medicine · Topeka, KS
1637
Kevin Wall
Family Practice · Manhattan, KS
1570
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
MANHATTAN SURGICAL HOSPITAL LLC302729
ASCENSION VIA CHRISTI HOSPITAL MANHATTAN, INC.194546
Tarek Salem
Pathology · Robbinsdale, MN
70156
Robert Starnes
Physician Assistant · Manhattan, KS
49107
Susan Speaks
Pathology · Manhattan, KS
48106
WAMEGO HOSPITAL ASSOCIATION41130
Matthew Gish
Diagnostic Radiology · Manhattan, KS
3987
Jeffrey Leichter
Interventional Radiology · Miami, FL
3787
Cotton O'neil Clinic Revocable Trust
Clinical Laboratory · Topeka, KS
37133
PETERSON, PEGGY3267
Gregory Welle
Diagnostic Radiology · Manhattan, KS
3062
GEARY COUNTY HOSPITAL3097
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.