What is John Lien's specialty?

John Lien (NPI 1932291648) is a Medicare-billing provider whose primary specialty is Cardiology in San Jose, CA.

Where does John Lien practice?

John Lien practices in San Jose, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1932291648.

How much does Medicare pay John Lien?

John Lien (NPI 1932291648) received approximately $591K in total Medicare Part B payments, serving 719 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

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

QUALITY · MIPS · 2024

Final MIPS score

100.0

Quality

100.0

Cost

78.8

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

1.05%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$2K

Payment records

By payment type

Food and Beverage$2K

Education$29

Top paying entities

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events