What is John Sun's specialty?

John Sun (NPI 1578664025) is a Medicare-billing provider whose primary specialty is Otolaryngology in Laguna Hills, CA.

Where does John Sun practice?

John Sun practices in Laguna Hills, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1578664025.

How much does Medicare pay John Sun?

John Sun (NPI 1578664025) received approximately $150K in total Medicare Part B payments, serving 452 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1578664025

John SunM.D.

OtolaryngologyLaguna Hills, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,107

Unique beneficiaries

—

Total services

1,687

Distinct HCPCS

Medicare payment

$142K

Peer benchmark

Total Medicare services vs. 875 Otolaryngology providers in CA — top quintile (cohort median 923).

PRESCRIBING · PART D · 2024

Total Rx claims

570

Beneficiaries

—

Total drug cost

$8K

Distinct drugs

Brand share

8.9%

Top prescribed drugs

Fluticasone Propionate144 claims

Azelastine Hcl95 claims

Ipratropium Bromide83 claims

Mometasone Furoate75 claims

Montelukast Sodium42 claims

QUALITY · MIPS · 2024

Final MIPS score

75.0

Quality

0.0

Cost

0.0

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

0.00%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$349

Payment records

By payment type

Food and Beverage$349

Top paying entities

Food and Beverage$349

REFERRAL NETWORK

Where John Sun'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). 3 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SADDLEBACK MEMORIAL MEDICAL CENTER	38	84
Unilab Corporation Clinical Laboratory · West Hills, CA	29	57
Christopher Yian Otolaryngology · Laguna Hills, CA	17	28

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