What is Mareena Zachariah's specialty?

Mareena Zachariah (NPI 1629087192) is a Medicare-billing provider whose primary specialty is Nephrology in Buffalo, NY.

Where does Mareena Zachariah practice?

Mareena Zachariah practices in Buffalo, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1629087192.

How much does Medicare pay Mareena Zachariah?

Mareena Zachariah (NPI 1629087192) received approximately $106K in total Medicare Part B payments, serving 226 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1629087192

Mareena ZachariahMD

PRACTICEMRI ASSOCIATES, PCSee all providers at this practice →

NephrologyBuffalo, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

428

Unique beneficiaries

—

Total services

834

Distinct HCPCS

Medicare payment

$96K

Peer benchmark

Total Medicare services vs. 690 Nephrology providers in NY — above median (cohort median 875).

PRESCRIBING · PART D · 2024

Total Rx claims

707

Beneficiaries

—

Total drug cost

$96K

Distinct drugs

Brand share

12.3%

Top prescribed drugs

Prednisone94 claims

Carvedilol77 claims

Furosemide50 claims

Potassium Chloride42 claims

Nifedipine41 claims

QUALITY · MIPS · 2024

Final MIPS score

99.5

Quality

88.0

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

1.03%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$551

Payment records

By payment type

Food and Beverage$551

Top paying entities

Food and Beverage$551

REFERRAL NETWORK

Where Mareena Zachariah'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). 16 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ERIE COUNTY MEDICAL CENTER CORPORATION	175	2,513
LAFTAVI, MARK	82	736
Sunil Patel General Surgery · Las Vegas, NV	60	571
PANKEWYCZ, OLEH	56	302
PAOLINI, KAREN	50	326
Rajeev Sharma General Surgery · Morgantown, WV	35	274
Jai Wadhwani Cardiology · Williamsville, NY	30	115
TIRONE, CHARLES	29	114
NPI 1275561094	29	90
LUTNICK, ROBERT	26	82
James Lukan Vascular Surgery · Buffalo, NY	23	76
SHAH, KEYUR	20	69

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