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PROVIDER PROFILE · NPI 1801876412

John ChiaMD

PRACTICEID MEDSee all providers at this practice →
Infectious DiseaseTorrance, CAI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
324
Unique beneficiaries
—
Total services
553
Distinct HCPCS
6
Medicare payment
$55K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 583 Infectious Disease providers in CA — above median (cohort median 564).
PRESCRIBING · PART D · 2024
Total Rx claims
1,375
Beneficiaries
—
Total drug cost
$181K
Distinct drugs
52
Brand share
21.8%
Top prescribed drugs
Fluvoxamine Maleate113 claims
Acyclovir109 claims
Nirmatrelvir/Ritonavir99 claims
Aripiprazole55 claims
Lamivudine54 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$329
Payment records
8
By payment type
Food and Beverage$329
REFERRAL NETWORK

Where John Chia'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). 31 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
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Richard Sullivan
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43147
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4187
Michael Stein
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3489
Unilab Corporation
Clinical Laboratory · West Hills, CA
3178
Janak Raval
Diagnostic Radiology · Torrance, CA
2672
Gabriel Ramirez
Diagnostic Radiology · Long Beach, CA
2574
Lucas Nishioka
Diagnostic Radiology · Torrance, CA
2467
Lalitha Ramanna
Diagnostic Radiology · Torrance, CA
2164
Rachel Knopoff
Diagnostic Radiology · Torrance, CA
1878
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.