What is Peter Siefken's specialty?

Peter Siefken (NPI 1144347261) is a Medicare-billing provider whose primary specialty is Physician Assistant in Amagansett, NY.

Where does Peter Siefken practice?

Peter Siefken practices in Amagansett, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1144347261.

How much does Medicare pay Peter Siefken?

Peter Siefken (NPI 1144347261) received approximately $40K in total Medicare Part B payments, serving 398 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events