What is Nasser Hajar's specialty?

Nasser Hajar (NPI 1689820631) is a Medicare-billing provider whose primary specialty is Gastroenterology in Sylvania, OH.

Where does Nasser Hajar practice?

Nasser Hajar practices in Sylvania, OH, based on the location reported in the CMS Medicare provider datasets for NPI 1689820631.

How much does Medicare pay Nasser Hajar?

Nasser Hajar (NPI 1689820631) received approximately $177K in total Medicare Part B payments, serving 397 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1689820631

Nasser HajarM.D.

GastroenterologySylvania, OHI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

732

Unique beneficiaries

—

Total services

779

Distinct HCPCS

Medicare payment

$75K

Peer benchmark

Total Medicare services vs. 553 Gastroenterology providers in OH — top quintile (cohort median 554).

PRESCRIBING · PART D · 2024

Total Rx claims

1,186

Beneficiaries

—

Total drug cost

$232K

Distinct drugs

Brand share

29.5%

Top prescribed drugs

Pantoprazole Sodium471 claims

Omeprazole194 claims

Peg3350/Sod Sulf,bicarb,cl/Kcl88 claims

Sodium Chloride/Nahco3/Kcl/Peg61 claims

Peg3350/Sod Sulf,bicarb,cl/Kcl38 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$347

Payment records

By payment type

Food and Beverage$347

Top paying entities

Food and Beverage$347

REFERRAL NETWORK

Where Nasser Hajar'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). 39 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
THE TOLEDO HOSPITAL	219	627
Michael Walsh Diagnostic Radiology · Toledo, OH	36	102
Stephen Stoll Diagnostic Radiology · Toledo, OH	33	93
Jonathan Nadaud Diagnostic Radiology · Toledo, OH	32	50
SLEE, GREGORY	29	69
TOLEDO HOSPITAL	28	45
Surendra Singh Pathology · Toledo, OH	27	51
Steven Shekut Diagnostic Radiology · Toledo, OH	25	55
Vincent Keiser Diagnostic Radiology · Toledo, OH	24	58
PRICE, CHARLES	24	57
Matthew Aagesen Diagnostic Radiology · Toledo, OH	22	41
NOVAK, WILLIAM	21	44

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