What is William Kasper's specialty?

William Kasper (NPI 1851307987) is a Medicare-billing provider whose primary specialty is Ophthalmology in Garden City, NY.

Where does William Kasper practice?

William Kasper practices in Garden City, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1851307987.

How much does Medicare pay William Kasper?

William Kasper (NPI 1851307987) received approximately $110K in total Medicare Part B payments, serving 783 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1851307987

William KasperM.D.

OphthalmologyGarden City, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,211

Unique beneficiaries

—

Total services

1,422

Distinct HCPCS

Medicare payment

$108K

Peer benchmark

Total Medicare services vs. 1,438 Ophthalmology providers in NY — below median (cohort median 1,869).

PRESCRIBING · PART D · 2024

Total Rx claims

1,419

Beneficiaries

—

Total drug cost

$126K

Distinct drugs

Brand share

33.8%

Top prescribed drugs

Latanoprost413 claims

Azelastine Hcl151 claims

Tobramycin/Dexamethasone127 claims

Timolol Maleate110 claims

Dorzolamide Hcl/Timolol Maleat104 claims

QUALITY · MIPS · 2024

Final MIPS score

91.5

Quality

90.0

Cost

76.6

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.69%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$3K

Payment records

By payment type

Food and Beverage$3K

Top paying entities

Food and Beverage$3K

REFERRAL NETWORK

Where William Kasper'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). 9 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Melville, NY	72	184
NYU LANGONE HOSPITALS	57	88
Mark Fleckner Ophthalmology · Garden City, NY	40	96
Sunrise Medical Laboratories, Inc. Clinical Laboratory · Hicksville, NY	28	53
Northwell Health Laboratories Clinical Laboratory · New Hyde Park, NY	20	47
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	15	19
NPI 1265587000	14	45
ENZO CLINICAL LABS, INC.	14	42
NORTH SHORE UNIVERSITY HOSPITAL	13	18

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