What is Jack Greenwood's specialty?

Jack Greenwood (NPI 1851396865) is a Medicare-billing provider whose primary specialty is Neurology in Port Jefferson, NY.

Where does Jack Greenwood practice?

Jack Greenwood practices in Port Jefferson, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1851396865.

How much does Medicare pay Jack Greenwood?

Jack Greenwood (NPI 1851396865) received approximately $25K in total Medicare Part B payments, serving 118 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1851396865

Jack GreenwoodMD

PRACTICEPAUL A. LUSMAN, M.D.P.C.See all providers at this practice →

NeurologyPort Jefferson, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

257

Unique beneficiaries

—

Total services

334

Distinct HCPCS

Medicare payment

$21K

Peer benchmark

Total Medicare services vs. 1,430 Neurology providers in NY — below median (cohort median 560).

PRESCRIBING · PART D · 2024

Total Rx claims

211

Beneficiaries

—

Total drug cost

$108K

Distinct drugs

Brand share

11.8%

Top prescribed drugs

Donepezil Hcl54 claims

Gabapentin40 claims

Topiramate30 claims

Lacosamide24 claims

Levetiracetam14 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$30

Payment records

By payment type

Food and Beverage$30

Top paying entities

Food and Beverage$30

REFERRAL NETWORK

Where Jack Greenwood'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). 12 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Balance Diagnostics Usa Llc Independent Diagnostic Testing Facility (IDTF) · Cedarhurst, NY	200	307
JOHN T. MATHER MEMORIAL HOSPITAL	37	72
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Melville, NY	31	118
SIEGELHEIM, MARK	25	56
Hanan Miller Internal Medicine · Brooklyn, NY	18	39
Sunrise Medical Laboratories, Inc. Clinical Laboratory · Hicksville, NY	16	56
Wagdy Girgis Family Practice · Brooklyn, NY	15	36
Northwell Health Laboratories Clinical Laboratory · New Hyde Park, NY	15	28
FLAMER, HAROLD	12	18
ALAM, HAMID	12	12
ADVANCED MULTI DIAGNOSTIC SERVICES	12	12
Wilder Rucker Addiction Medicine · Miramar, FL	11	39

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