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PROVIDER PROFILE · NPI 1639301922

Ryan JooM.D.

PRACTICEELISA CHANG MD INCSee all providers at this practice →
Infectious DiseasePasadena, CAI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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PRESCRIBING · PART D · 2024
Total Rx claims
479
Beneficiaries
—
Total drug cost
$388K
Distinct drugs
21
Brand share
35.3%
Top prescribed drugs
Ciprofloxacin Hcl57 claims
Bictegrav/Emtricit/Tenofov Ala41 claims
Cephalexin35 claims
Vancomycin Hcl32 claims
Ertapenem Sodium32 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
634
Unique beneficiaries
—
Total services
1,551
Distinct HCPCS
5
Medicare payment
$135K
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.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$515
Payment records
17
By payment type
Food and Beverage$515
REFERRAL NETWORK

Where Ryan Joo'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). 28 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
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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.