What is William Chizmar's specialty?

William Chizmar (NPI 1700999513) is a Medicare-billing provider whose primary specialty is Anesthesiology Assistant in Grand Rapids, MI.

Where does William Chizmar practice?

William Chizmar practices in Grand Rapids, MI, based on the location reported in the CMS Medicare provider datasets for NPI 1700999513.

How much does Medicare pay William Chizmar?

William Chizmar (NPI 1700999513) received approximately $12K in total Medicare Part B payments, serving 138 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1700999513

William ChizmarAA

PRACTICEAMC MOBILE ANESTHESIA, PCSee all providers at this practice →

Anesthesiology AssistantGrand Rapids, MII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$2K

Peer benchmark

Total Medicare services vs. 29 Anesthesiology Assistant providers in MI — top quintile (cohort median 96).

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

No data available for this provider in 2025.

REFERRAL NETWORK

Where William Chizmar'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). 10 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SPECTRUM HEALTH UNITED	37	72
SPECTRUM HEALTH PRIMARY CARE PARTNERS	23	23
Michael Boyle Ophthalmology · Grand Rapids, MI	17	26
John Vantimmeren Anesthesiology · Grand Rapids, MI	17	17
Victor Hajjar Cardiology · Greenville, MI	12	17
ADVANTAGE HEALTH/SAINT MARY'S MEDICAL GROUP	12	12
Christopher Buchach Diagnostic Radiology · Grand Rapids, MI	12	13
QUICK, JOHN	12	13
WATERS, GREGORY	11	12
Angelo Porcari Diagnostic Radiology · Grand Rapids, MI	11	18

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