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PROVIDER PROFILE · NPI 1457362329

William MullenMD

CardiologySanta Clara, CAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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QUALITY · MIPS · 2024
Final MIPS score
81.8
Quality
67.1
Cost
74.0
Improvement activities
40.0
Promoting interop.
98.0
Payment adjustment
0.29%
Group
PRESCRIBING · PART D · 2024
Total Rx claims
1,957
Beneficiaries
—
Total drug cost
$572K
Distinct drugs
29
Brand share
34.4%
Top prescribed drugs
Metoprolol Succinate248 claims
Atorvastatin Calcium209 claims
Apixaban198 claims
Losartan Potassium144 claims
Rosuvastatin Calcium129 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,219
Unique beneficiaries
—
Total services
1,469
Distinct HCPCS
15
Medicare payment
$93K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,869 Cardiology providers in CA — below median (cohort median 2,371).
REFERRAL NETWORK

Where William Mullen'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). 57 inbound referrers · 100 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Jon Keller
Pathology · Palo Alto, CA
5491,658
Cheena Ramrakhiani
Cardiology · Stanford, CA
91139
Joseph Walter
Diagnostic Radiology · Palo Alto, CA
6378
Aria Dibiase
Advanced Heart Failure and Transplant Cardiology · Palo Alto, CA
5174
Sung Chun
Clinical Cardiac Electrophysiology · Stanford, CA
4872
Bob Hu
Cardiology · Stanford, CA
4663
EL CAMINO HOSPITAL3664
Ingrid Hogberg
Cardiology · Fremont, CA
3339
Edmund Tai
Hematology-Oncology · Mountain View, CA
31102
Kathryn Stevens
Diagnostic Radiology · Stanford, CA
2947
Sean Hilchey
Diagnostic Radiology · Fremont, CA
2733
Linda Morimoto
Diagnostic Radiology · Stanford, CA
2542
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
Jon Keller
Pathology · Palo Alto, CA
3531,132
STANFORD HEALTH CARE286630
Joseph Walter
Diagnostic Radiology · Palo Alto, CA
82109
Cheena Ramrakhiani
Cardiology · Stanford, CA
70140
Francis Koch
Cardiology · Stanford, CA
66135
Lynette Lissin
Advanced Heart Failure and Transplant Cardiology · Stanford, CA
6191
Girish Narayan
Clinical Cardiac Electrophysiology · Stanford, CA
56111
Protransport 1
Ambulance Service Provider · Rohnert Park, CA
54109
Shaun Cho
Clinical Cardiac Electrophysiology · Palo Alto, CA
51119
Haiwei Guo
Diagnostic Radiology · Stanford, CA
49125
Irhythm Technologies, Inc.
Independent Diagnostic Testing Facility (IDTF) · San Francisco, CA
4957
Erik Price
Interventional Cardiology · Stanford, CA
4989
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.