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 1073505178

Michael ZeregaMD

PRACTICEDIGESTIVE DISEASE MEDICAL CONSULTANTS, PCSee all providers at this practice →
GastroenterologyLake St Louis, MOI
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
1,140
Beneficiaries
—
Total drug cost
$515K
Distinct drugs
19
Brand share
57.3%
Top prescribed drugs
Peg3350/Sod Sulf,bicarb,cl/Kcl351 claims
Pantoprazole Sodium155 claims
Omeprazole111 claims
Sodium Chloride/Nahco3/Kcl/Peg84 claims
Famotidine72 claims
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 260020
Hospital
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
426
Unique beneficiaries
—
Total services
449
Distinct HCPCS
11
Medicare payment
$56K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 294 Gastroenterology providers in MO — below median (cohort median 585).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$48
Payment records
2
By payment type
Food and Beverage$48
REFERRAL NETWORK

Where Michael Zerega'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). 10 inbound referrers · 43 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
MERCY HOSPITALS EAST COMMUNITIES139416
John Nash
Cardiology · Saint Louis, MO
1830
ROSENTHAL, DEBRA1732
Toni Roth
Diagnostic Radiology · Saint Louis, MO
1732
Colleen Spieler
Diagnostic Radiology · Saint Louis, MO
1631
CREPPS, LOUIS1524
ST. LUKES EPISCOPAL-PRESBYTERIAN HOSPITAL1351
Robert Ferrara
Cardiology · Saint Louis, MO
1218
MISSOURI BAPTIST MEDICAL CENTER1229
John Fortney
Emergency Medicine · Saint Louis, MO
1120
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
MERCY HOSPITALS EAST COMMUNITIES226771
Laura Gardner
Pathology · Saint Louis, MO
2549
CREPPS, LOUIS2133
ROSENTHAL, DEBRA1928
Shien Micchelli
Pathology · Baltimore, MD
1938
Jeffrey Thomasson
Diagnostic Radiology · Saint Louis, MO
1829
Todd Bailey
Anesthesiology · Saint Louis, MO
1736
Abbott Ambulance Inc
Ambulance Service Provider · Saint Louis, MO
1739
JELKS, DAVID1737
ST. LUKES EPISCOPAL-PRESBYTERIAN HOSPITAL1732
Rudy Simeon
Anesthesiology · St. Louis, MO
1735
Matthew Casey
Anesthesiology · Ballwin, MO
1635
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.