What is Felix Chau's specialty?

Felix Chau (NPI 1649458878) is a Medicare-billing provider whose primary specialty is Ophthalmology in Chicago, IL.

Where does Felix Chau practice?

Felix Chau practices in Chicago, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1649458878.

How much does Medicare pay Felix Chau?

Felix Chau (NPI 1649458878) received approximately $62K in total Medicare Part B payments, serving 212 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1649458878

Felix ChauM.D.

PRACTICETHE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOISSee all providers at this practice →

OphthalmologyChicago, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

508

Unique beneficiaries

—

Total services

1,044

Distinct HCPCS

Medicare payment

$41K

Peer benchmark

Total Medicare services vs. 667 Ophthalmology providers in IL — below median (cohort median 2,192).

PRESCRIBING · PART D · 2024

Total Rx claims

269

Beneficiaries

—

Total drug cost

$6K

Distinct drugs

Brand share

13.4%

Top prescribed drugs

Prednisolone Acetate89 claims

Ketorolac Tromethamine51 claims

Timolol Maleate27 claims

Brimonidine Tartrate24 claims

Dorzolamide Hcl/Timolol Maleat20 claims

QUALITY · MIPS · 2024

Final MIPS score

93.3

Quality

73.5

Cost

70.7

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.77%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Felix Chau'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
Jennifer Lim Ophthalmology · Chicago, IL	23	42
Maria Cortina Ophthalmology · Chicago, IL	20	138
Ahmad Aref Ophthalmology · Chicago, IL	16	95
William Mieler Ophthalmology · Burr Ridge, IL	12	38

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