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 1578537031

Klaus MergenerM.D.

PRACTICEPUGET SOUND GASTROENTEROLOGY, PLLCSee all providers at this practice →
GastroenterologyEdmonds, WAI
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
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$151
Payment records
4
By payment type
Food and Beverage$151
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
347
Unique beneficiaries
—
Total services
361
Distinct HCPCS
11
Medicare payment
$37K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 359 Gastroenterology providers in WA — below median (cohort median 511).
REFERRAL NETWORK

Where Klaus Mergener'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). 15 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
MULTICARE HEALTH SYSTEM214639
Robert Yap
Nurse Practitioner · Burien, WA
48116
Dorothy Gonzaga
Nurse Practitioner · Tacoma, WA
2974
RURAL METRO OF GREATER SEATTLE INC2551
Andrew Hardy
Diagnostic Radiology · Tacoma, WA
2249
Jana Fahmy
Diagnostic Radiology · Tacoma, WA
1955
SATRE, RICHARD1737
Charles Leusner
Diagnostic Radiology · Tacoma, WA
1639
Devendra Vora
Interventional Cardiology · Tacoma, WA
1635
Polly Haberlin
Hospitalist · Everett, WA
1332
Albert Morriss
Physician Assistant · Tacoma, WA
1220
William Simonson
Pathology · Tacoma, WA
1123
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.