MR. STEFAN J GIERYN (CRNA) – Certified Registered Nurse Anesthetist, NPI 1073661609

Certified Registered Nurse Anesthetist

MR. STEFAN J GIERYN (CRNA) is a healthcare provider. based in Whitewater, Wisconsin. specializing in Certified Registered Nurse Anesthetist. They hold the professional credentials CRNA. They hold a License No. 98033 (WI). The NPI Number for MR. STEFAN J GIERYN (CRNA) is 1073661609

Main info

Male

41 Years Of Experience

Accepts Medicare Assignment

Name

MR. STEFAN J GIERYN (CRNA)

NPI

1073661609

Phone

(262) 473-8286

Address

N138 MC MILLEN RD

Enumeration Date

8 January 2007

Last Update Date

8 July 2007

Doctor Profile

Medical School Name

OTHER

Secondary Phone

9205685000

Graduation Year

1985 (41 years ago)

PAC ID

4082801287

Group Practice PAC ID

0840189718

Professional Enrollment ID

I20101214001106

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience52

Completeness75

Years active:19State licenses:1Digital endpointsOther names

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Provider Addresses for MR. STEFAN J GIERYN (CRNA)

N138 MC MILLEN RD
WHITEWATER, WI 531902806
Phone: (262) 473-8286
Type: Mailing
Fort Atkinson Memorial Hospital, 611, Sherman Avenue East, Fort Atkinson, Jefferson County, Wisconsin, 53538, United States
FORT ATKINSON, WI 535381960
Phone: (920) 568-5000
Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 53190)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.

PAC ID: 0840189718View full group profile

Name	Specialty	State
YAW D BERKO (MD)	Hospitalist, Internal Medicine	MI
DR. JAMIE CLEMENTI (MD)	General Surgery	IL
CAROLYN A HAERR (MD)	-	WI
BILLIE G KONTNY (MD)	General Surgery	WI
MS. JAMIE L FOLTZ (CRNA)	Certified Registered Nurse Anesthetist (Crna)	WI
BRADLEY THOMAS WAGNER (CRNA)	Certified Registered Nurse Anesthetist (Crna)	WI
ABBY LYNN ZIEGLER (FNP-BC)	Nurse Practitioner	WI
LYNN S BRODERICK (MD)	-	WI
ELIZABETH H LYNK (MD)	-	WI
DR. THOMAS DIEHL (MD)	General Surgery	WI

Reviews

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Frequently asked questions

Where can patients find MR. STEFAN J GIERYN (CRNA)'s NPI?

You can confirm MR. STEFAN J GIERYN (CRNA) with NPI 1073661609; it appears in the national provider directory.

Does this profile mean MR. STEFAN J GIERYN (CRNA) is currently active?

Yes — MR. STEFAN J GIERYN (CRNA) appears active in the national provider directory.

What field does MR. STEFAN J GIERYN (CRNA) work in?

You can think of MR. STEFAN J GIERYN (CRNA) as practicing within Certified Registered Nurse Anesthetist. Clinical services aligned with this taxonomy classification.

Does MR. STEFAN J GIERYN (CRNA) practice in Wisconsin?

You will see Whitewater, Wisconsin on file for MR. STEFAN J GIERYN (CRNA) alongside any extra practice locations.

Does Medicare enrollment show here?

Medicare enrollment screens are separate from the basic NPI extract shown here.