What is Larry Koreen's specialty?

Larry Koreen (NPI 1619174554) is a Medicare-billing provider whose primary specialty is Ophthalmology in Newburgh, NY.

Where does Larry Koreen practice?

Larry Koreen practices in Newburgh, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1619174554.

How much does Medicare pay Larry Koreen?

Larry Koreen (NPI 1619174554) received approximately $2.1M in total Medicare Part B payments, serving 1,005 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1619174554

Larry KoreenMD, PHD, MPH

PRACTICEWARREN ALTWERGERSee all providers at this practice →

OphthalmologyNewburgh, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

2,535

Unique beneficiaries

—

Total services

16,611

Distinct HCPCS

Medicare payment

$2.0M

Peer benchmark

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

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

93.3

Quality

86.5

Cost

0.0

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

0.77%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Larry Koreen'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). 7 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ST. LUKE'S CORNWALL HOSPITAL	46	98
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	32	56
Bioreference Health, Llc Clinical Laboratory · Elmwood Park, NJ	22	44
Thien Huynh Ophthalmology · New Windsor, NY	15	33
Seth Hurwitz Cardiology · Suffern, NY	12	48
Abha Amin Ophthalmology · Valhalla, NY	12	51
Chris Donikyan Diagnostic Radiology · Middletown, NY	11	12

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