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PROVIDER PROFILE · NPI 1629172861

John GrizzardM.D.

PRACTICERIVERSIDE HOSPITAL INCSee all providers at this practice →
Diagnostic RadiologyNewport News, VAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,064
Unique beneficiaries
—
Total services
1,239
Distinct HCPCS
6
Medicare payment
$26K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 837 Diagnostic Radiology providers in VA — bottom quintile (cohort median 3,851).
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
Final MIPS score
84.0
Quality
69.9
Cost
77.4
Improvement activities
40.0
Promoting interop.
99.0
Payment adjustment
0.38%
Group
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where John Grizzard'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). 205 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
VIRGINIA COMMONWEALTH UNIVERSITY HEALTH SYSTEM AUTHORITY1,4453,639
Lester Fahrner
Diagnostic Radiology · Roseville, MN
279974
TUTTON, ROGER244921
Siddhi Shah
Diagnostic Radiology · Richmond, VA
152317
Guatham Kalahasty
Clinical Cardiac Electrophysiology · Richmond, VA
147404
Francisco Albuquerque
Vascular Surgery · Richmond, VA
147446
Yang Tang
Diagnostic Radiology · Richmond, VA
136259
Rekha Kishore
Diagnostic Radiology · Richmond, VA
135293
Matthew Doherty
Diagnostic Radiology · Williamsburg, VA
134403
ARROWOOD, JAMES123250
LLEWELLYN, CHRISTINE121311
Uma Prasad
Diagnostic Radiology · Richmond, VA
117265
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.