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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Edward Possin, M.D.

Retina Specialist (Ophthalmology) Physician in Appleton, WI · enumerated 2012 · practices at Northeast Wisconsin Retina Associates Sc.

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

National Provider Identifier

1811253289

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Registry record

Entity type Individual (Type 1)
Name Michael Edward Possin
Credential M.D.
Sex Male
Practice address 442 N Westhill Blvd Ste A, Appleton, WI, 54914
Fax (920) 751-0822
Enumeration date Apr 10, 2012
Last updated in NPPES Aug 29, 2023

Taxonomy & licenses

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 65572 (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.

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Frequently asked questions

Is NPI 1811253289 active?
Yes, as of the latest NPPES snapshot, NPI 1811253289 is active (record last updated 2023-08-29).
How do I verify Michael Possin's NPI record?
Cross-check NPI 1811253289 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-08-29.