What is Mark Greaves's specialty?

Mark Greaves (NPI 1518139914) is a Medicare-billing provider whose primary specialty is Gastroenterology in Hillsborough, NJ.

Where does Mark Greaves practice?

Mark Greaves practices in Hillsborough, NJ, based on the location reported in the CMS Medicare provider datasets for NPI 1518139914.

How much does Medicare pay Mark Greaves?

Mark Greaves (NPI 1518139914) received approximately $434K in total Medicare Part B payments, serving 812 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1518139914

Mark GreavesM.D.

GastroenterologyHillsborough, NJI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,299

Unique beneficiaries

—

Total services

13,411

Distinct HCPCS

Medicare payment

$379K

Peer benchmark

Total Medicare services vs. 544 Gastroenterology providers in NJ — top quintile (cohort median 963).

PRESCRIBING · PART D · 2024

Total Rx claims

1,439

Beneficiaries

—

Total drug cost

$194K

Distinct drugs

Brand share

12.5%

Top prescribed drugs

Omeprazole386 claims

Pantoprazole Sodium224 claims

Famotidine106 claims

Dicyclomine Hcl79 claims

Esomeprazole Magnesium68 claims

QUALITY · MIPS · 2024

Final MIPS score

100.0

Quality

0.0

Cost

76.6

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

1.05%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$737

Payment records

By payment type

Food and Beverage$737

Top paying entities

Food and Beverage$737

REFERRAL NETWORK

Where Mark Greaves'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). 68 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ROBERT WOOD JOHNSON UNIVERSITY HOSPITAL INC	305	863
Central Jersey Ambulatory Surgical Center, Llc Ambulatory Surgical Center · Hillsborough, NJ	120	190
Robert Jaffe Diagnostic Radiology · Edison, NJ	112	308
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	105	272
Gary Ciambotti Gastroenterology · Hillsborough, NJ	101	289
Steven Gross Diagnostic Radiology · East Brunswick, NJ	79	194
Alan Saunders Interventional Radiology · East Brunswick, NJ	79	184
Claudia Barghash Gastroenterology · Hillsborough, NJ	73	189
Anthony Caravello Diagnostic Radiology · East Brunswick, NJ	67	130
Shehzana Ashraf Internal Medicine · Somerville, NJ	45	112
Ling Lam Diagnostic Radiology · Edison, NJ	40	74
DAGUILLO, ANTHONY	37	78

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