What is Peter Brennen's specialty?

Peter Brennen (NPI 1831410679) is a Medicare-billing provider whose primary specialty is Ophthalmology in Plainview, NY.

Where does Peter Brennen practice?

Peter Brennen practices in Plainview, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1831410679.

How much does Medicare pay Peter Brennen?

Peter Brennen (NPI 1831410679) received approximately $3.3M in total Medicare Part B payments, serving 1,791 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1831410679

Peter BrennenM.D.

PRACTICEMARIO FRACASSA MDPCSee all providers at this practice →

OphthalmologyPlainview, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

5,064

Unique beneficiaries

—

Total services

35,959

Distinct HCPCS

Medicare payment

$3.2M

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

449

Beneficiaries

—

Total drug cost

$28K

Distinct drugs

Brand share

31.2%

Top prescribed drugs

Prednisolone Acetate135 claims

Ketorolac Tromethamine60 claims

Moxifloxacin Hcl52 claims

Latanoprost37 claims

Dorzolamide Hcl/Timolol Maleat33 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$829

Payment records

By payment type

Food and Beverage$829

Top paying entities

Food and Beverage$829

REFERRAL NETWORK

Where Peter Brennen'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). 2 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SHELBY COUNTY HEALTH CARE CORPORATION	14	27
James Hatcher Certified Registered Nurse Anesthetist (CRNA) · Germantown, TN	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