What is John Grezaffi's specialty?

John Grezaffi (NPI 1659575173) is a Medicare-billing provider whose primary specialty is Diagnostic Radiology in Baton Rouge, LA.

Where does John Grezaffi practice?

John Grezaffi practices in Baton Rouge, LA, based on the location reported in the CMS Medicare provider datasets for NPI 1659575173.

How much does Medicare pay John Grezaffi?

John Grezaffi (NPI 1659575173) received approximately $149K in total Medicare Part B payments, serving 2,327 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1659575173

John GrezaffiMD

Diagnostic RadiologyBaton Rouge, LAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,575

Unique beneficiaries

—

Total services

9,465

Distinct HCPCS

Medicare payment

$103K

Peer benchmark

Total Medicare services vs. 384 Diagnostic Radiology providers in LA — top quintile (cohort median 2,476).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$720

Payment records

By payment type

Food and Beverage$720

Top paying entities

Food and Beverage$720

REFERRAL NETWORK

Where John Grezaffi'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). 175 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Acadian Ambulance Service, Inc. Ambulance Service Provider · Lafayette, LA	320	655
EAST BATON ROUGE MEDICAL CENTER LLC	266	682
OUR LADY OF THE LAKE HOSPITAL INC.	254	619
Byron May Diagnostic Radiology · Jackson, MS	146	268
Laboratory Corporation Of America Holdings Clinical Laboratory · Birmingham, AL	126	254
Sang-Ting Tsai Diagnostic Radiology · Baton Rouge, LA	124	230
William Gregoire Diagnostic Radiology · Baton Rouge, LA	123	235
Adam Harris Diagnostic Radiology · Baton Rouge, LA	118	240
OUR LADY OF THE LAKE ASCENSION COMMUNITY HOSPITAL, INC.	113	222
James Fletcher Diagnostic Radiology · Edina, MN	110	183
Joseph Griffin Vascular Surgery · Baton Rouge, LA	108	242
Karthik Reddy Internal Medicine · Baton Rouge, LA	86	403

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events