What is Tuan Nguyen's specialty?

Tuan Nguyen (NPI 1669644951) is a Medicare-billing provider whose primary specialty is Cardiology in Fountain Valley, CA.

Where does Tuan Nguyen practice?

Tuan Nguyen practices in Fountain Valley, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1669644951.

How much does Medicare pay Tuan Nguyen?

Tuan Nguyen (NPI 1669644951) received approximately $1.3M in total Medicare Part B payments, serving 2,277 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1669644951

Tuan NguyenM.D.

PRACTICEOC CARDIOVASCULAR CARE, INC.See all providers at this practice →

CardiologyFountain Valley, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

8,119

Unique beneficiaries

—

Total services

18,202

Distinct HCPCS

Medicare payment

$1.3M

Peer benchmark

Total Medicare services vs. 1,869 Cardiology providers in CA — top quintile (cohort median 2,371).

PRESCRIBING · PART D · 2024

Total Rx claims

6,708

Beneficiaries

—

Total drug cost

$1.5M

Distinct drugs

Brand share

36.6%

Top prescribed drugs

Apixaban770 claims

Metoprolol Succinate664 claims

Losartan Potassium472 claims

Metoprolol Tartrate389 claims

Amlodipine Besylate361 claims

QUALITY · MIPS · 2024

Final MIPS score

90.8

Quality

80.1

Cost

56.1

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.67%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$703

Payment records

By payment type

Food and Beverage$703

Top paying entities

Food and Beverage$703

REFERRAL NETWORK

Where Tuan Nguyen'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). 9 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
RIVERSIDE HEALTHCARE SYSTEM, L.P.	103	247
Unilab Corporation Clinical Laboratory · West Hills, CA	28	89
Ardavan Afshar Diagnostic Radiology · Riverside, CA	28	49
Andro Sharobiem Internal Medicine · Riverside, CA	24	78
Shareef Riad Diagnostic Radiology · San Diego, CA	21	44
PARKVIEW COMMUNITY HOSPITAL MEDICAL CENTER	20	33
Kaustubh Patankar Cardiology · Riverside, CA	19	34
MINA N MIKHAIL MD INC	16	23
Mina Mikhail Internal Medicine · Riverside, CA	14	26

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