What is James Gregg's specialty?

James Gregg (NPI 1518100049) is a Medicare-billing provider whose primary specialty is Diagnostic Radiology in Houston, TX.

Where does James Gregg practice?

James Gregg practices in Houston, TX, based on the location reported in the CMS Medicare provider datasets for NPI 1518100049.

How much does Medicare pay James Gregg?

James Gregg (NPI 1518100049) received approximately $78K in total Medicare Part B payments, serving 2,578 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1518100049

James GreggMD

PRACTICESYNERGY RADIOLOGY ASSOCIATESSee all providers at this practice →

Diagnostic RadiologyHouston, TXI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,833

Unique beneficiaries

—

Total services

3,111

Distinct HCPCS

Medicare payment

$53K

Peer benchmark

Total Medicare services vs. 2,345 Diagnostic Radiology providers in TX — above median (cohort median 2,473).

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 · 2025

Total received

$2K

Payment records

By payment type

Food and Beverage$2K

Top paying entities

Food and Beverage$2K

REFERRAL NETWORK

Where James Gregg'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). 219 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
UNIVERSITY OF TEXAS M. D. ANDERSON CANCER CENTER	615	2,239
PMC HOSPITAL, LLC	478	797
HARRIS COUNTY HOSPITAL DISTRICT	290	861
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Houston, TX	173	339
George Hanna Cardiology · Bay City, TX	145	441
TARRAND, JEFFREY	141	233
City Of Houston Ambulance Service Provider · Houston, TX	127	268
Elie Mouhayar Cardiology · Houston, TX	96	172
Kara Thompson Cardiology · Houston, TX	93	157
John Hancock Diagnostic Radiology · Houston, TX	91	203
Kaveh Karimzad Cardiology · Houston, TX	89	151
Peter Kim Cardiology · Houston, TX	83	136

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