What is Gregory Persak's specialty?

Gregory Persak (NPI 1952372245) is a Medicare-billing provider whose primary specialty is Ophthalmology in West Islip, NY.

Where does Gregory Persak practice?

Gregory Persak practices in West Islip, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1952372245.

How much does Medicare pay Gregory Persak?

Gregory Persak (NPI 1952372245) received approximately $440K in total Medicare Part B payments, serving 1,249 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1952372245

Gregory PersakM.D.

PRACTICEMEDICAL SURGICAL EYE CARE SERVICES PCSee all providers at this practice →

OphthalmologyWest Islip, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

3,953

Unique beneficiaries

—

Total services

4,615

Distinct HCPCS

Medicare payment

$434K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

3,149

Beneficiaries

—

Total drug cost

$328K

Distinct drugs

Brand share

41.2%

Top prescribed drugs

Moxifloxacin Hcl521 claims

Latanoprost521 claims

Prednisolone Acetate425 claims

Ketorolac Tromethamine422 claims

Timolol Maleate207 claims

QUALITY · MIPS · 2024

Final MIPS score

93.1

Quality

79.8

Cost

0.0

Improvement activities

40.0

Promoting interop.

88.8

Payment adjustment

0.76%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$979

Payment records

By payment type

Food and Beverage$979

Top paying entities

Food and Beverage$979

REFERRAL NETWORK

Where Gregory Persak'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). 26 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Sunrise Medical Laboratories, Inc. Clinical Laboratory · Hicksville, NY	142	345
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Melville, NY	131	441
ST. FRANCIS HOSPITAL	82	182
Northwell Health Laboratories Clinical Laboratory · New Hyde Park, NY	67	140
WOLLMAN, GEORGE	56	201
Jeffrey Willig Ophthalmology · West Islip, NY	46	79
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	35	101
NPI 1043281371	32	72
Terrence Tam Anesthesiology · East Patchogue, NY	30	102
Bioreference Health, Llc Clinical Laboratory · Elmwood Park, NJ	26	35
Justin Shaber Clinical Cardiac Electrophysiology · West Islip, NY	18	42
SOUTH SHORE UNIVERSITY HOSPITAL	18	40

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