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 1083626212

Elizabeth NghiemM.D.

Infectious DiseaseFountain Valley, CAI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (5)

CCN 050230
Hospital
CCN 050348
Hospital
CCN 050485
Hospital
CCN 050526
Hospital
CCN 050678
Hospital
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,160
Unique beneficiaries
—
Total services
5,894
Distinct HCPCS
10
Medicare payment
$460K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 583 Infectious Disease providers in CA — top quintile (cohort median 564).
QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
188
Beneficiaries
—
Total drug cost
$24K
Distinct drugs
12
Brand share
46.3%
Top prescribed drugs
Ertapenem Sodium31 claims
Tobramycin Sulfate23 claims
Fluconazole18 claims
Ceftriaxone Sodium17 claims
0.9 % Sodium Chloride15 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$266
Payment records
4
By payment type
Food and Beverage$266
REFERRAL NETWORK

Where Elizabeth Nghiem'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). 108 inbound referrers · 187 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Marvin Reyes
Infectious Disease · Fountain Valley, CA
2501,104
CASSIDY, DAVID144633
NPI 13361520081382,285
Reza Shahbaz
Diagnostic Radiology · Orange, CA
127749
Mehdi Jalili
Diagnostic Radiology · Orange, CA
119693
Essam Mostafa
Nephrology · Fountain Valley, CA
1151,118
Harpreet Singh
Cardiology · Fountain Valley, CA
101688
Son Dinh
Nephrology · Fountain Valley, CA
1001,098
Christopher Salem
Family Practice · Irvine, CA
911,201
Kenneth Lynch
Diagnostic Radiology · Surfside, CA
88355
Robby Ayoub
Internal Medicine · Huntington Beach, CA
84845
Davinder Singh
Internal Medicine · Fountain Valley, CA
811,333
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
Marvin Reyes
Infectious Disease · Fountain Valley, CA
281966
LOK, JOHN2731,065
DAVILA, JAVIER253895
NPI 13361520081372,387
Eastwest Proto Inc
Ambulance Service Provider · Commerce, CA
135396
Essam Mostafa
Nephrology · Fountain Valley, CA
1291,217
Falck Mobile Health Corp
Ambulance Service Provider · Orange, CA
117348
UNIVERSITY OF CALIFORNIA IRVINE111294
Son Dinh
Nephrology · Fountain Valley, CA
1111,194
Philip Yang
Nephrology · Fountain Valley, CA
1091,072
Reza Shahbaz
Diagnostic Radiology · Orange, CA
100374
CHUDNOVSKY, VADIM971,005
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.