What is William Nghiem's specialty?

William Nghiem (NPI 1851559223) is a Medicare-billing provider whose primary specialty is Diagnostic Radiology in Germantown, MD.

Where does William Nghiem practice?

William Nghiem practices in Germantown, MD, based on the location reported in the CMS Medicare provider datasets for NPI 1851559223.

How much does Medicare pay William Nghiem?

William Nghiem (NPI 1851559223) received approximately $131K in total Medicare Part B payments, serving 165 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1851559223

William NghiemMD

Diagnostic RadiologyGermantown, MDI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

462

Unique beneficiaries

—

Total services

511

Distinct HCPCS

Medicare payment

$85K

Peer benchmark

Total Medicare services vs. 630 Diagnostic Radiology providers in MD — bottom quintile (cohort median 5,711).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

95.4

Quality

94.5

Cost

77.3

Improvement activities

40.0

Promoting interop.

93.0

Payment adjustment

0.86%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$2K

Payment records

By payment type

Travel and Lodging$925

Food and Beverage$651

Top paying entities

Travel and Lodging$925

Food and Beverage$651

REFERRAL NETWORK

Where William Nghiem'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). 121 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Renu Berry Diagnostic Radiology · Germantown, MD	152	289
Daniel Goldberg Cardiology · Rockville, MD	141	258
Zahide Erkmen Diagnostic Radiology · Germantown, MD	134	407
Daniel Griffen Cardiology · Rockville, MD	132	218
Shubir Sofat Cardiology · Rockville, MD	120	203
Quest Diagnostics Incorporated Md Clinical Laboratory · Baltimore, MD	107	309
Jonathan Bowles Diagnostic Radiology · Germantown, MD	101	182
CASANOVA, VELMA	97	177
COOPER, RICHARD	97	191
ADVENTIST HEALTHCARE, INC.	97	173
Andrew Garff Emergency Medicine · Prescott, AZ	81	130
Fisehatsion Mehari Internal Medicine · Rockville, MD	76	249

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