What is Melissa Chun's specialty?

Melissa Chun (NPI 1861415432) is a Medicare-billing provider whose primary specialty is Optometry in Los Angeles, CA.

Where does Melissa Chun practice?

Melissa Chun practices in Los Angeles, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1861415432.

How much does Medicare pay Melissa Chun?

Melissa Chun (NPI 1861415432) received approximately $10K in total Medicare Part B payments, serving 94 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1861415432

Melissa ChunO.D

OptometryLos Angeles, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

107

Unique beneficiaries

—

Total services

111

Distinct HCPCS

Medicare payment

$8K

Peer benchmark

Total Medicare services vs. 2,493 Optometry providers in CA — below median (cohort median 147).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$22K

Distinct drugs

Brand share

29.8%

Top prescribed drugs

Latanoprost20 claims

Cyclosporine14 claims

Cyclosporine13 claims

QUALITY · MIPS · 2024

Final MIPS score

86.3

Quality

79.0

Cost

71.7

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.48%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Melissa Chun'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). 4 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
David Sarraf Ophthalmology · Los Angeles, CA	26	41
Joseph Caprioli Ophthalmology · Los Angeles, CA	21	32
Unilab Corporation Clinical Laboratory · West Hills, CA	16	24
REGENTS OF THE UNIV OF CALIFORNIA	13	19

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