What is Gerald Peiser's specialty?

Gerald Peiser (NPI 1003813643) is a Medicare-billing provider whose primary specialty is Anesthesiology in Phoenix, AZ.

Where does Gerald Peiser practice?

Gerald Peiser practices in Phoenix, AZ, based on the location reported in the CMS Medicare provider datasets for NPI 1003813643.

How much does Medicare pay Gerald Peiser?

Gerald Peiser (NPI 1003813643) received approximately $17K in total Medicare Part B payments, serving 74 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1003813643

Gerald PeiserD.O.

AnesthesiologyPhoenix, AZI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$3K

Peer benchmark

Total Medicare services vs. 1,032 Anesthesiology providers in AZ — bottom quintile (cohort median 181).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$36

Payment records

By payment type

Food and Beverage$36

Top paying entities

Food and Beverage$36

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 030014

Hospital

REFERRAL NETWORK

Where Gerald Peiser'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). 5 inbound referrers · 11 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
HERRO, ELLISON	18	104
DALTON, PAUL	16	147
ST LUKES MEDICAL CENTER LP	14	25
HOLLAND, DONALD	12	34
Adeel Zafar Psychiatry · Phoenix, AZ	11	40

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Sonora Quest Laboratories Llc Clinical Laboratory · Phoenix, AZ	17	64
HONORHEALTH	17	21
Canyon Ambulatory Surgery Center, Llc Ambulatory Surgical Center · Phoenix, AZ	15	18
BANNER - UNIVERSITY MEDICAL CENTER PHOENIX	14	25
ST LUKES MEDICAL CENTER LP	14	27
HERRO, ELLISON	14	65
SOUTHWEST ORTHOPEDIC AND SPINE HOSPITAL, LLC	13	14
DALTON, PAUL	13	124
Adeel Zafar Psychiatry · Phoenix, AZ	12	43
Clara Jones Physician Assistant · Phoenix, AZ	11	17
Robert Berghoff Orthopedic Surgery · Phoenix, AZ	11	43

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