What is William Park's specialty?

William Park (NPI 1942458237) is a Medicare-billing provider whose primary specialty is Ophthalmology in Aurora, IL.

Where does William Park practice?

William Park practices in Aurora, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1942458237.

How much does Medicare pay William Park?

William Park (NPI 1942458237) received approximately $100K in total Medicare Part B payments, serving 375 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1942458237

William ParkM.D.

PRACTICEROBERT J BARNES MD LTDSee all providers at this practice →

OphthalmologyAurora, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

760

Unique beneficiaries

—

Total services

1,117

Distinct HCPCS

Medicare payment

$86K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

576

Beneficiaries

—

Total drug cost

$24K

Distinct drugs

Brand share

7.8%

Top prescribed drugs

Prednisolone Acetate160 claims

Ofloxacin143 claims

Ketorolac Tromethamine140 claims

Latanoprost55 claims

Bimatoprost30 claims

QUALITY · MIPS · 2024

Final MIPS score

0.0

Quality

0.0

Cost

0.0

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

-9.00%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$715

Payment records

By payment type

Food and Beverage$715

Top paying entities

Food and Beverage$715

REFERRAL NETWORK

Where William Park'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). 8 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Northwest Community Day Surgery Center Ii Llc Ambulatory Surgical Center · Arlington Heights, IL	53	193
ALEXIAN BROTHERS MEDICAL CENTER	25	34
ENDEAVOR HEALTH CLINICAL OPERATIONS	16	41
Andreas Seidler Internal Medicine · Mt Prospect, IL	15	39
Daniel Alter Ophthalmology · Des Plaines, IL	14	35
Evan Oblonsky Diagnostic Radiology · Arlington Heights, IL	13	33
Carl Kalbhen Diagnostic Radiology · Arlington Heights, IL	13	23
Stephen Zivin Diagnostic Radiology · Madison, CT	11	13

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