What is Richard Zak's specialty?

Richard Zak (NPI 1467422451) is a Medicare-billing provider whose primary specialty is Ophthalmology in Aurora, IL.

Where does Richard Zak practice?

Richard Zak practices in Aurora, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1467422451.

How much does Medicare pay Richard Zak?

Richard Zak (NPI 1467422451) received approximately $747K in total Medicare Part B payments, serving 296 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1467422451

Richard ZakMD

PRACTICEROBERT J BARNES MD LTDSee all providers at this practice →

OphthalmologyAurora, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

863

Unique beneficiaries

—

Total services

3,273

Distinct HCPCS

Medicare payment

$675K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

119

Beneficiaries

—

Total drug cost

$3K

Distinct drugs

Brand share

21.0%

Top prescribed drugs

Latanoprost26 claims

Dorzolamide Hcl/Timolol Maleat25 claims

Prednisolone Acetate22 claims

Timolol Maleate20 claims

Brimonidine Tartrate15 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$360

Payment records

By payment type

Food and Beverage$360

Top paying entities

Food and Beverage$360

REFERRAL NETWORK

Where Richard Zak'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 · 11 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
COPLEY MEMORIAL HOSPITAL, INC.	54	198
PRESENCE CENTRAL AND SUBURBAN HOSPITALS NETWORK	28	66
CENTRAL DUPAGE HOSPITAL ASSOCIATION	20	47
Basharat Muneer Cardiology · Aurora, IL	14	56

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
COPLEY MEMORIAL HOSPITAL, INC.	57	178
Quest Diagnostics Llc Il Clinical Laboratory · Wood Dale, IL	50	118
Robert Barnes Ophthalmology · Aurora, IL	28	126
PRESENCE CENTRAL AND SUBURBAN HOSPITALS NETWORK	26	60
Robert Foody Ophthalmology · Aurora, IL	22	58
DELNOR COMMUNITY HOSPITAL	15	25
GILL, SANTOSH	14	35
Basharat Muneer Cardiology · Aurora, IL	13	61
CENTRAL DUPAGE HOSPITAL ASSOCIATION	12	36
Edward Lipman Clinical Cardiac Electrophysiology · Aurora, IL	11	30
Vijay Shah Interventional Cardiology · Aurora, IL	11	17

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