What is Marc Dinowitz's specialty?

Marc Dinowitz (NPI 1578582466) is a Medicare-billing provider whose primary specialty is Ophthalmology in Riverhead, NY.

Where does Marc Dinowitz practice?

Marc Dinowitz practices in Riverhead, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1578582466.

How much does Medicare pay Marc Dinowitz?

Marc Dinowitz (NPI 1578582466) received approximately $545K in total Medicare Part B payments, serving 1,999 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1578582466

Marc DinowitzM.D.

OphthalmologyRiverhead, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

3,868

Unique beneficiaries

—

Total services

4,711

Distinct HCPCS

Medicare payment

$538K

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

1,689

Beneficiaries

—

Total drug cost

$150K

Distinct drugs

Brand share

41.9%

Top prescribed drugs

Latanoprost509 claims

Dorzolamide Hcl/Timolol Maleat286 claims

Prednisolone Acetate182 claims

Neomycin/Polymyxin B/Dexametha129 claims

Erythromycin Base73 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

No data available for this provider in 2024.

REFERRAL NETWORK

Where Marc Dinowitz'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). 32 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
CENTRAL SUFFOLK HOSPITAL	143	368
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Melville, NY	142	498
Sunrise Medical Laboratories, Inc. Clinical Laboratory · Hicksville, NY	74	149
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	50	89
JOHN T. MATHER MEMORIAL HOSPITAL	39	95
ENZO CLINICAL LABS, INC.	28	50
UNIVERSITY HOSPITAL AT STONY BROOK	26	55
NPI 1265587000	21	72
Vishnudat Seodat Family Practice · Riverhead, NY	20	30
Scott Sheren Ophthalmology · Riverhead, NY	19	36
Mitchell Meyerson Dermatology · Riverhead, NY	17	20
ST. CHARLES HOSPITAL	15	28

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