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PROVIDER PROFILE · NPI 1063592145

William ArmstrongMD

PRACTICEUC REGENTSSee all providers at this practice →
OtolaryngologyOrange, CAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 050224
Hospital
CCN 050348
Hospital
REFERRAL NETWORK

Where William Armstrong'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). 6 inbound referrers · 18 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Byron J Allen
Internal Medicine · Orange, CA
2699
Unilab Corporation
Clinical Laboratory · West Hills, CA
2171
Marisa Tseng
Diagnostic Radiology · Duarte, CA
1895
Pranav Patel
Cardiology · Orange, CA
1457
Teferi Mitiku
Internal Medicine · Orange, CA
1368
David Floriolli
Diagnostic Radiology · Orange, CA
1139
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
UNIVERSITY OF CALIFORNIA IRVINE2612,875
Byron J Allen
Internal Medicine · Orange, CA
30128
Nelson Lowe
Oral Surgery (Dentist only) · Santa Ana, CA
26113
CYRLAK, DVORA25146
Unilab Corporation
Clinical Laboratory · West Hills, CA
2582
Chaitali Nangia
Hematology · Costa Mesa, CA
22290
Beverly Wang
Pathology · New York, NY
20113
Marisa Tseng
Diagnostic Radiology · Duarte, CA
1680
Julie Goddard
Otolaryngology · Aurora, CO
16277
LIN, FRITZ1674
Pranav Patel
Cardiology · Orange, CA
1557
Teferi Mitiku
Internal Medicine · Orange, CA
1454
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.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
348
Unique beneficiaries
—
Total services
434
Distinct HCPCS
6
Medicare payment
$28K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 875 Otolaryngology providers in CA — below median (cohort median 923).
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
Final MIPS score
100.0
Quality
83.7
Cost
0.0
Improvement activities
40.0
Promoting interop.
100.0
Payment adjustment
1.05%
APM Entity
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$16
Payment records
1
By payment type
Food and Beverage$16