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Millenium Anesthesiologists, Ltd.

Millenium Anesthesiologists, Ltd. is a healthcare organization registered as Anesthesiology Physician in Green Bay, WI, holding Type 2 (organization) NPI 1215003082 since 2006. The authorized official on file is Charles Heron, President.

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NPI 1215003082
Entity type Organization (Type 2)
Legal business name Millenium Anesthesiologists, Ltd.
Practice address 1726 SHAWANO AVE, Green Bay, WI, 54303
Phone 9204984200
Enumeration date 2006-11-25
Last updated in NPPES 2014-12-18

Authorized official

Name Charles Heron
Title President
Phone 9204984200

Taxonomy & classification

Taxonomy code Specialty Primary License State
207LP2900X Pain Medicine (Anesthesiology) Physician Secondary
208VP0014X Interventional Pain Medicine Physician Secondary
207L00000X Anesthesiology Physician Primary

Other identifiers

Identifier Type State Issuer
21302500 Medicaid WI
Copy-ready billing details
Provider: Millenium Anesthesiologists, Ltd.
NPI: 1215003082
Taxonomy: 207L00000X (Anesthesiology Physician)
Address: 1726 SHAWANO AVE, Green Bay, WI, 54303

Providers at this address

NPI Name Type Specialty Location
1679556526 St Vincent Hospital-Hospital Sisters-Third Order of St Francis Organization Home Health Agency Green Bay, WI
1356324990 Thomas Farley Individual Anesthesiology Physician Green Bay, WI
1548233612 Matthew Ryan Individual Hematology & Oncology Physician Green Bay, WI
1851365910 Jerry Winkler Individual Hematology & Oncology Physician Green Bay, WI
1649246877 St Mary'S Hospital Medical Center of Green Bay Inc.-Hospital Sisters Organization General Acute Care Hospital Green Bay, WI
1124096185 Ruth Warren Individual Medical Oncology Physician Green Bay, WI
1679538011 David Groteluschen Individual Medical Oncology Physician Green Bay, WI
1083662712 Green Bay Emergency Physicians, LLC Organization Emergency Medicine Physician Green Bay, WI

Verify this record

Cross-check NPI 1215003082 against the authoritative CMS record: view Millenium Anesthesiologists, Ltd. on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Millenium Anesthesiologists, Ltd.?
Millenium Anesthesiologists, Ltd. is registered in NPPES as a Anesthesiology Physician (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-12-18.