What is Gregg Marella's specialty?

Gregg Marella (NPI 1922116326) is a Medicare-billing provider whose primary specialty is Internal Medicine in Mendham, NJ.

Where does Gregg Marella practice?

Gregg Marella practices in Mendham, NJ, based on the location reported in the CMS Medicare provider datasets for NPI 1922116326.

How much does Medicare pay Gregg Marella?

Gregg Marella (NPI 1922116326) received approximately $125K in total Medicare Part B payments, serving 293 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1922116326

Gregg MarellaM.D.

PRACTICEMENDHAM MEDICAL GROUP LLPSee all providers at this practice →

Internal MedicineMendham, NJI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,268

Unique beneficiaries

—

Total services

2,039

Distinct HCPCS

Medicare payment

$113K

Peer benchmark

Total Medicare services vs. 3,616 Internal Medicine providers in NJ — top quintile (cohort median 895).

PRESCRIBING · PART D · 2024

Total Rx claims

2,617

Beneficiaries

—

Total drug cost

$182K

Distinct drugs

Brand share

20.5%

Top prescribed drugs

Atorvastatin Calcium194 claims

Levothyroxine Sodium168 claims

Rosuvastatin Calcium155 claims

Amlodipine Besylate136 claims

Irbesartan79 claims

QUALITY · MIPS · 2024

Final MIPS score

19.8

Quality

0.0

Cost

65.9

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

-6.63%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$597

Payment records

By payment type

Food and Beverage$597

Top paying entities

Food and Beverage$597

REFERRAL NETWORK

Where Gregg Marella'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). 14 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
AHS HOSPITAL CORP.	110	298
WOLF, JAMES	45	151
Christie Prestifilippo Internal Medicine · Mendham, NJ	38	121
David Paik Diagnostic Radiology · Parsippany, NJ	22	94
Atlantic Ambulance Corp. Ambulance Service Provider · Livingston, NJ	21	37
NPI 1427148279	20	50
Hal Ginsberg Diagnostic Radiology · Morristown, NJ	19	45
MOORE, ANN	18	28
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	17	59
Arthur Rusovici Interventional Cardiology · Rockville Centre, NY	15	80
Robyn Murphy Diagnostic Radiology · Morristown, NJ	13	23
John Mondelli Cardiology · Morristown, NJ	13	33

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