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DR. MARK WENCK M.D.
NPI 1639153646
Anesthesiology in Green Bay, WI

Active since December 02, 2005PECOS Enrolled
835 S VAN BUREN ST, GREEN BAY, WI 54301(920) 433-0111 Get Directions Write a Review

NPPES record last updated: December 28, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 28, 2020, Jun 16, 2020 (2 updates tracked since 2020).

About Dr. Mark Wenck M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK WENCK M.D. (NPI 1639153646) is an individual anesthesiology provider in Green Bay, Wisconsin, licensed in Wisconsin (25114-020) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639153646
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. MARK WENCKCredential: M.D.
Location Address835 S VAN BUREN STGreen Bay, WI 54301-3526
Mailing Address225 S Executive DrBrookfield, WI 53005-4266 · (262) 787-4026
Phone(920) 433-0111
Sole ProprietorNo
Enumeration DateDecember 2, 2005
Last NPPES UpdateDecember 28, 20202 updates tracked since enumeration
NPPES CertifiedDecember 28, 2020
✔ NPI 1639153646 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in WI · 25114-020✔ Licensed in OH · 35.053347
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
835 S VAN BUREN ST, Green Bay, WI 54301
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Other Identifiers 2

Other050026083Rail Road Medicare
Medicaid30448500WI

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark Wenck M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Mark Wenck reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Green Bay Anesthesia Assoc. Sc
Same address
Anesthesiology
835 S VAN BUREN ST
Green Bay, WI 54301
  • Reassigned Medicare billing, Wisconsin enrollment
  • 129 clinicians in this Medicare group
NPI 1023065836 (920) 433-0111
Association Of Hospital Anesthesiologists Sc
31 mi
Anesthesiology
130 2ND ST, STE. A107
Neenah, WI 54956
  • Reassigned Medicare billing, Wisconsin enrollment
  • 144 clinicians in this Medicare group
NPI 1720076474 (920) 729-3332
The Monroe Clinic, Inc.
154 mi
Specialist
515 22ND AVE
Monroe, WI 53566
  • Reassigned Medicare billing, Wisconsin enrollment
  • 376 clinicians in this Medicare group
NPI 1386720548 (608) 324-2770

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARY LYNN BARTEL MD
Pediatrics
835 S VAN BUREN ST, ROOM 1041
GREEN BAY, WI 54301
Brown County (920) 496-4700
DR. EKMINI WIJESINGHE MD
Hospitalist
835 S VAN BUREN ST, ST VINCENT HOSPITAL
GREEN BAY, WI 54301
Brown County (920) 272-1586
SALLY SCHLISE MD
Radiology (Radiation Oncology)
835 S VAN BUREN ST
GREEN BAY, WI 54301
Brown County (920) 433-8184
GREEN BAY ANESTHESIA ASSOC. SC
Anesthesiology
835 S VAN BUREN ST
GREEN BAY, WI 54301
Brown County (920) 433-0111
LEE JAMES KLEMENS MD
Internal Medicine
835 S VAN BUREN ST
GREEN BAY, WI 54301
Brown County (920) 496-4700
DR. REGINALD E JULIEN M.D.
Anesthesiology
835 S VAN BUREN ST
GREEN BAY, WI 54301
Brown County (920) 433-0111
ASHLEY M SPINDLER PA
Physician Assistant
835 S VAN BUREN ST
GREEN BAY, WI 54301
Brown County (920) 496-4700
DR. CHARLES F DAIS II M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
835 S VAN BUREN ST
GREEN BAY, WI 54301
Brown County (920) 433-8047

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Wenck's NPI number?

The NPI number for Mark Wenck is 1639153646. It was assigned to this individual provider in the NPPES registry on December 2, 2005.

Where is Mark Wenck located?

Mark Wenck practices at 835 S Van Buren St, Green Bay, WI 54301. The listed phone number is (920) 433-0111.

What is Mark Wenck's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Mark Wenck enrolled in Medicare?

Yes. Mark Wenck is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Mark Wenck's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Wenck reassigns Medicare benefits to 3 organizations: Green Bay Anesthesia Assoc. Sc (Green Bay, WI), Association Of Hospital Anesthesiologists Sc (Neenah, WI) and The Monroe Clinic, Inc. (Monroe, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Wenck's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mark Wenck was last updated on December 28, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.