PROVIDER PROFILE · NPI 1144347261

Peter SiefkenPA

Physician AssistantAmagansett, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

612

Unique beneficiaries

—

Total services

666

Distinct HCPCS

Medicare payment

$35K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

389

Beneficiaries

—

Total drug cost

$3K

Distinct drugs

Brand share

25.4%

Top prescribed drugs

Doxycycline Hyclate50 claims

Azithromycin45 claims

Cefdinir45 claims

Prednisone33 claims

Nitrofurantoin Monohyd/M-Cryst30 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Peter Siefken'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). 3 inbound referrers · 4 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
UNIVERSITY HOSPITAL AT STONY BROOK	74	145
Meciko Muharemovic Internal Medicine · Hampton Bays, NY	51	102
Sunrise Medical Laboratories, Inc. Clinical Laboratory · Hicksville, NY	18	47

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Meciko Muharemovic Internal Medicine · Hampton Bays, NY	63	157
UNIVERSITY HOSPITAL AT STONY BROOK	27	43
Sunrise Medical Laboratories, Inc. Clinical Laboratory · Hicksville, NY	20	59
BRANCACCIO, WILLIAM	13	15

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