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Anesthesiology Specialists in West Allis, WI

Browse 29 Anesthesiology providers listed in NPPES with a practice address in West Allis, Wisconsin.

29 Healthcare Providers

How West Allis compares with the U.S.

West Allis has 49 clinicians in Anesthesiology per 100,000 residents, 2.7 times the U.S. rate of 18.

That is 29 active clinicians in Anesthesiology with a practice address in West Allis, for a population of 59,612.

The Wisconsin rate is 22 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

91% of clinicians in Anesthesiology in West Allis listed in the CMS Medicare file (20 of 22) accept Medicare assignment. That is lower than the Wisconsin share of 99%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

None of the 22 clinicians in Anesthesiology in West Allis listed in the CMS Medicare file have a CMS telehealth indicator. Some may still offer telehealth; ask the office.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Anesthesiology Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Anesthesiology practitioners in West Allis, WI

Source: CMS PECOS
PECOS Enrolled Specialists 22 In West Allis, WI
Part B Lab & Imaging Eligible 22 Diagnostic Referrals
DME Ordering Eligible 23 Durable Medical Equipment
Home Health Agency Referrals 22 HHA Ordering Eligible
Showing 1โ€“20 of 29 providers
With recent CMS data first, then Aโ€“Z

Dr. John K Amuzu , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 53227
Phone: 4143286000
NPI Identifier 1609859651
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Dr. Bret Borowski , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143286000
NPI Identifier 1659354629
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Dr. Jon David Brethauer , DO

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143286000
NPI Identifier 1720159874
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Active NPI Status
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143286000
NPI Identifier 1063972024
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Dr. Nathan Paul Gabler , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143286000
NPI Identifier 1043398423
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Dr. Eric Davin Hoyme , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143294399
NPI Identifier 1699882571
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Dr. Ayse Oge Kula , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143286000
NPI Identifier 1568534816
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Dr. Catherine I Kuo , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 53227
Phone: 4148058700
NPI Identifier 1396917035
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Dr. Robert J. O'quinn , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143286000
NPI Identifier 1487744769
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Dr. Craig Alan Pierstorff , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
1229 S 58th St, West Allis, WI 532143314
Phone: 4144432732
NPI Identifier 1932280989
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Dr. Lily Qian , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143286000
NPI Identifier 1164474862
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Dr. Mark J. Schaefer , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, 2nd Fl, West Allis, WI 532272409
Phone: 4143294300
NPI Identifier 1629052428
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Dr. Kirsten J Simanonok , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143286000
NPI Identifier 1225083447
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Dr. Daniel M Smullen , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, 2nd Fl, West Allis, WI 532272409
Phone: 4143294300
NPI Identifier 1043245376
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Michael A Stanton

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143286000
NPI Identifier 1336503374
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Dr. Katie Tuler , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, 2nd Fl, West Allis, WI 532272409
Phone: 4143294300
NPI Identifier 1366684912
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Dr. Joshua M White , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143286000
NPI Identifier 1275996340
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Dr. Mark D Wilcox , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143286000
NPI Identifier 1669456687
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Dr. Randall S Yale , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143286000
NPI Identifier 1710328307
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Dr. Chenyang Zhang , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
8901 W Lincoln Ave, West Allis, WI 532272409
Phone: 4143286000
NPI Identifier 1215946611
View Full Profile

Frequently Asked Questions about Anesthesiology in West Allis

How do I check a Anesthesiology practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Wisconsin licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.