What is Derek Louie's specialty?

Derek Louie (NPI 1235281379) is a Medicare-billing provider whose primary specialty is Optometry in Portland, OR.

Where does Derek Louie practice?

Derek Louie practices in Portland, OR, based on the location reported in the CMS Medicare provider datasets for NPI 1235281379.

How much does Medicare pay Derek Louie?

Derek Louie (NPI 1235281379) received approximately $22K in total Medicare Part B payments, serving 234 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1235281379

Derek LouieBS, MS, OD

OptometryPortland, ORI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

368

Unique beneficiaries

—

Total services

395

Distinct HCPCS

Medicare payment

$21K

Peer benchmark

Total Medicare services vs. 472 Optometry providers in OR — above median (cohort median 186).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$1K

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Prednisolone Acetate14 claims

Fluorometholone11 claims

QUALITY · MIPS · 2024

Final MIPS score

99.1

Quality

84.3

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

1.01%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$147

Payment records

By payment type

Food and Beverage$147

Top paying entities

Food and Beverage$147

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 380009

Hospital

REFERRAL NETWORK

Where Derek Louie'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). 0 inbound referrers · 3 outbound destinations.

Receives referrals from

Inbound — who sends patients here

No inbound pairs above the suppression threshold.

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
OREGON HEALTH & SCIENCE UNIVERSITY	88	448
HABIBI, ROYA	18	30
Winston Chamberlain Ophthalmology · Portland, OR	11	48

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