PROVIDER PROFILE · NPI 1376717272

Mark GrzesiakRPAC

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Physician AssistantMineola, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$3K

Peer benchmark

Total Medicare services vs. 8,690 Physician Assistant providers in NY — bottom quintile (cohort median 149).

PRESCRIBING · PART D · 2024

Total Rx claims

684

Beneficiaries

—

Total drug cost

$441K

Distinct drugs

Brand share

37.3%

Top prescribed drugs

Ondansetron105 claims

Olanzapine69 claims

Oxycodone Hcl56 claims

Apixaban43 claims

Prochlorperazine Maleate40 claims

QUALITY · MIPS · 2024

Final MIPS score

79.1

Quality

57.9

Cost

80.4

Improvement activities

40.0

Promoting interop.

77.0

Payment adjustment

0.17%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Mark Grzesiak'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). 1 inbound referrers · 3 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Sunil Butani Physical Medicine and Rehabilitation · Mineola, NY	23	124

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Sunil Butani Physical Medicine and Rehabilitation · Mineola, NY	29	207
Timur Yasin Physical Medicine and Rehabilitation · Smithtown, NY	20	27
Usman Saleem Interventional Pain Management · Bellerose, NY	11	13

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