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 1265478564

Mark SteinM.D.

Diagnostic RadiologySanta Ana, CAI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
Final MIPS score
91.3
Quality
75.0
Cost
0.0
Improvement activities
40.0
Promoting interop.
100.0
Payment adjustment
0.68%
Group
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050348
Hospital
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
638
Unique beneficiaries
—
Total services
5,847
Distinct HCPCS
12
Medicare payment
$162K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 3,474 Diagnostic Radiology providers in CA — above median (cohort median 2,975).
REFERRAL NETWORK

Where Mark Stein'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). 7 inbound referrers · 30 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Unilab Corporation
Clinical Laboratory · West Hills, CA
158313
Michael Dao
Internal Medicine · Garden Grove, CA
36110
Patricia Kincaid
Diagnostic Radiology · Santa Ana, CA
2833
International Medical Laboratory
Clinical Laboratory · Irvine, CA
1221
David Rodibaugh
Diagnostic Radiology · Santa Ana, CA
1114
SADDLEBACK MEMORIAL MEDICAL CENTER1117
Glenda Romero-Urquhart
Diagnostic Radiology · Santa Ana, CA
1112
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
Unilab Corporation
Clinical Laboratory · West Hills, CA
149255
Laboratory Corporation Of America
Clinical Laboratory · San Diego, CA
82157
Laszlo Kaveggia
Diagnostic Radiology · Santa Ana, CA
6895
HOAG MEMORIAL HOSPITAL PRESBYTERIAN4051
UNIVERSITY OF CALIFORNIA IRVINE3970
ST. JOSEPH HOSPITAL OF ORANGE3551
Gary Geil
Diagnostic Radiology · Steamboat Springs, CO
3345
CALIFORNIA LABORATORY SCIENCES LLC3352
Michael Dao
Internal Medicine · Garden Grove, CA
2666
Raymond Kuo
Diagnostic Radiology · Orange, CA
2225
KIPPER, SAMUEL2135
Jonathan Ahdoot
Internal Medicine · Irvine, CA
2048
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.