PROVIDER PROFILE · NPI 1932291648

John LienMD

CardiologySan Jose, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,122

Unique beneficiaries

—

Total services

3,234

Distinct HCPCS

Medicare payment

$570K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

7,662

Beneficiaries

—

Total drug cost

$2.0M

Distinct drugs

Brand share

39.6%

Top prescribed drugs

Metoprolol Succinate830 claims

Apixaban730 claims

Rosuvastatin Calcium620 claims

Atorvastatin Calcium579 claims

Amlodipine Besylate462 claims

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$2K

Payment records

By payment type

Food and Beverage$2K

Education$29

REFERRAL NETWORK

Where John Lien'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). 44 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SAN JOSE HEALTHCARE SYSTEM, L.P.	181	459
Conway Lien Diagnostic Radiology · Stanford, CA	60	109
Theodore Chow Clinical Cardiac Electrophysiology · Mountain View, CA	51	121
Keith Kwok Diagnostic Radiology · Tracy, CA	50	97
Lien Nguyen Ophthalmology · San Jose, CA	49	195
Tung Nguyen Family Practice · San Jose, CA	42	208
POSADA, JUAN	41	165
Nicole Hong Phuong Thai Internal Medicine · San Jose, CA	40	100
Wayne Tran Diagnostic Radiology · San Francisco, CA	30	55
Danny Luong Ophthalmology · San Jose, CA	29	89
Daniel Tse Internal Medicine · San Jose, CA	29	109
Randal Pham Ophthalmology · San Jose, CA	28	61

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