Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Walker Flannery, M.D.

Orthopaedic Surgery Physician in Green Bay, WI · enumerated 2012 · practices at Osms Anesthesia LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1891051538

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Registry record

Entity type Individual (Type 1)

Name Walker Flannery

Credential M.D.

Sex Male

Practice address 2223 Lime Kiln Rd Ste 1, Green Bay, WI, 54311

Phone (920) 430-8113

Enumeration date Apr 6, 2012

Last updated in NPPES Apr 22, 2025

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 61360-20 (WI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 → Validate an NPI →

Frequently asked questions

How do I verify Walker Flannery's NPI record?

Cross-check NPI 1891051538 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1891051538 active?

Yes, as of the latest NPPES snapshot, NPI 1891051538 is active (record last updated 2025-04-22).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-22.