What is John Grizzard's specialty?

John Grizzard (NPI 1629172861) is a Medicare-billing provider whose primary specialty is Diagnostic Radiology in Newport News, VA.

Where does John Grizzard practice?

John Grizzard practices in Newport News, VA, based on the location reported in the CMS Medicare provider datasets for NPI 1629172861.

How much does Medicare pay John Grizzard?

John Grizzard (NPI 1629172861) received approximately $27K in total Medicare Part B payments, serving 1,009 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1629172861

John GrizzardM.D.

PRACTICERIVERSIDE HOSPITAL INCSee all providers at this practice →

Diagnostic RadiologyNewport News, VAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,064

Unique beneficiaries

—

Total services

1,239

Distinct HCPCS

Medicare payment

$26K

Peer benchmark

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

Physician	Patients	Visits
VIRGINIA COMMONWEALTH UNIVERSITY HEALTH SYSTEM AUTHORITY	1,445	3,639
Lester Fahrner Diagnostic Radiology · Roseville, MN	279	974
TUTTON, ROGER	244	921
Siddhi Shah Diagnostic Radiology · Richmond, VA	152	317
Guatham Kalahasty Clinical Cardiac Electrophysiology · Richmond, VA	147	404
Francisco Albuquerque Vascular Surgery · Richmond, VA	147	446
Yang Tang Diagnostic Radiology · Richmond, VA	136	259
Rekha Kishore Diagnostic Radiology · Richmond, VA	135	293
Matthew Doherty Diagnostic Radiology · Williamsburg, VA	134	403
ARROWOOD, JAMES	123	250
LLEWELLYN, CHRISTINE	121	311
Uma Prasad Diagnostic Radiology · Richmond, VA	117	265

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.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history