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PROVIDER PROFILE · NPI 1144284001

Howard NakashioyaM.D.

Emergency MedicineNewport Beach, CAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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PRESCRIBING · PART D · 2024
Total Rx claims
180
Beneficiaries
—
Total drug cost
$1K
Distinct drugs
6
Brand share
70.6%
Top prescribed drugs
Ondansetron75 claims
Hydrocodone/Acetaminophen52 claims
Cefdinir14 claims
Doxycycline Monohydrate13 claims
Methylprednisolone13 claims
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050224
Hospital
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
955
Unique beneficiaries
—
Total services
1,004
Distinct HCPCS
4
Medicare payment
$102K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 5,287 Emergency Medicine providers in CA — top quintile (cohort median 355).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
Final MIPS score
75.0
Quality
0.0
Cost
0.0
Improvement activities
0.0
Promoting interop.
0.0
Payment adjustment
0.00%
Group
REFERRAL NETWORK

Where Howard Nakashioya'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). 25 inbound referrers · 141 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Unilab Corporation
Clinical Laboratory · West Hills, CA
80183
Scott Williams
Diagnostic Radiology · Stanford, CA
4270
Shaya Ghazinoor
Diagnostic Radiology · Newport Beach, CA
3871
Winston Whitney
Diagnostic Radiology · Newport Beach, CA
2543
Frederick Birnberg
Diagnostic Radiology · Newport Beach, CA
2355
Binh Nguyen
Interventional Radiology · Newport Beach, CA
2255
SHORELINE AMBULANCE COMPANY, LLC1838
Tommy Lee
Hospitalist · Newport Beach, CA
1845
William Vandalsem
Diagnostic Radiology · Newport Beach, CA
1832
Jadwiga Close
Hospitalist · Newport Beach, CA
1744
Allyson Hoppe
Hospitalist · Newport Beach, CA
1627
Brian Kong
Hospitalist · Newport Beach, CA
1634
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
HOAG MEMORIAL HOSPITAL PRESBYTERIAN6611,591
Falck Mobile Health Corp
Ambulance Service Provider · Orange, CA
128267
Mark Chen
Diagnostic Radiology · Newport Beach, CA
109172
Roger Thomas
Diagnostic Radiology · Newport Beach, CA
106160
City Of Newport Beach
Ambulance Service Provider · Newport Beach, CA
102183
LIM, JOHN93140
William Vandalsem
Diagnostic Radiology · Newport Beach, CA
91152
Winston Whitney
Diagnostic Radiology · Newport Beach, CA
77112
Jinsoo Keyoung
Diagnostic Radiology · Stanford, CA
76121
Frederick Birnberg
Diagnostic Radiology · Newport Beach, CA
74122
CALIFORNIA LABORATORY SCIENCES LLC74194
Miles Chang
Diagnostic Radiology · Newport Beach, CA
73107
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.