What is Tamer Atassi's specialty?

Tamer Atassi (NPI 1548276819) is a Medicare-billing provider whose primary specialty is Gastroenterology in Joliet, IL.

Where does Tamer Atassi practice?

Tamer Atassi practices in Joliet, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1548276819.

How much does Medicare pay Tamer Atassi?

Tamer Atassi (NPI 1548276819) received approximately $188K in total Medicare Part B payments, serving 671 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1548276819

Tamer AtassiM.D.

GastroenterologyJoliet, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,344

Unique beneficiaries

—

Total services

1,681

Distinct HCPCS

Medicare payment

$170K

Peer benchmark

Total Medicare services vs. 606 Gastroenterology providers in IL — top quintile (cohort median 726).

PRESCRIBING · PART D · 2024

Total Rx claims

373

Beneficiaries

—

Total drug cost

$289K

Distinct drugs

Brand share

31.6%

Top prescribed drugs

Pantoprazole Sodium92 claims

Omeprazole91 claims

Linaclotide40 claims

Resmetirom37 claims

Dicyclomine Hcl26 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$963

Payment records

By payment type

Food and Beverage$963

Top paying entities

Food and Beverage$963

REFERRAL NETWORK

Where Tamer Atassi'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). 58 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
PRESENCE CENTRAL AND SUBURBAN HOSPITALS NETWORK	196	670
ADVENTIST BOLINGBROOK HOSPITAL	117	368
James Urban Pathology · Joliet, IL	51	152
Rakesh Chaudhari Diagnostic Radiology · Woodridge, IL	48	118
Priya Venkataraman Hospitalist · Winfield, IL	45	185
John Groch Diagnostic Radiology · Joliet, IL	45	124
Andrew Johanek Diagnostic Radiology · Chicago, IL	44	89
Robert Elgar Cardiology · New Lenox, IL	43	95
Michelle O'leary Pathology · Joliet, IL	40	94
John Dongas Clinical Cardiac Electrophysiology · New Lenox, IL	40	91
KUSHNER, TERRY	39	88
Lipi Sekhadia Hospitalist · Winfield, IL	34	157

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