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 1003849233

Grzegorz MajcherM.D.

Internal MedicineTorrance, CAI
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.
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (5)

CCN 052715
Dialysis facility
CCN 552832
Dialysis facility
CCN 552833
Dialysis facility
CCN 050351
Hospital
CCN 050353
Hospital
PRESCRIBING · PART D · 2024
Total Rx claims
1,686
Beneficiaries
—
Total drug cost
$208K
Distinct drugs
52
Brand share
19.1%
Top prescribed drugs
Rosuvastatin Calcium122 claims
Atorvastatin Calcium90 claims
Doxazosin Mesylate87 claims
Furosemide86 claims
Losartan Potassium77 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
579
Unique beneficiaries
—
Total services
2,539
Distinct HCPCS
10
Medicare payment
$305K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 10,499 Internal Medicine providers in CA — top quintile (cohort median 531).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Grzegorz Majcher'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). 36 inbound referrers · 85 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
TORRANCE MEMORIAL MEDICAL CENTER140808
Hosayn Khaleeli
Nephrology · Torrance, CA
63314
Westmed Ambulance Inc
Ambulance Service Provider · Compton, CA
59139
Robert Kolanz
Diagnostic Radiology · Torrance, CA
45178
Richard Sullivan
Diagnostic Radiology · Torrance, CA
41136
HUETTNER, GLENN38103
Joseph Lopez
Internal Medicine · Torrance, CA
37157
Albert Grabb
Diagnostic Radiology · Torrance, CA
36140
Adel Metry
Internal Medicine · Gardena, CA
33184
Donny Baek
Diagnostic Radiology · Los Angeles, CA
2995
Unilab Corporation
Clinical Laboratory · West Hills, CA
2983
Lucas Nishioka
Diagnostic Radiology · Torrance, CA
2758
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
PROVIDENCE HEALTH SYSTEM SOUTHERN CALIFORNIA177765
TORRANCE MEMORIAL MEDICAL CENTER129973
Hosayn Khaleeli
Nephrology · Torrance, CA
91431
Robert Kolanz
Diagnostic Radiology · Torrance, CA
66232
Richard Sullivan
Diagnostic Radiology · Torrance, CA
57184
MARCUS, ROBERT56281
HUETTNER, GLENN53168
Laboratory Corporation Of America
Clinical Laboratory · San Diego, CA
52175
Lucas Nishioka
Diagnostic Radiology · Torrance, CA
47120
Randal Sutherland
Diagnostic Radiology · Torrance, CA
47110
Westmed Ambulance Inc
Ambulance Service Provider · Compton, CA
46144
LIBERTY AMBULANCE LLC4396
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.