Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ann U Madden, OD
Optometrist in Warsaw, IN · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1285660902
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Registry record
Entity type Individual (Type 1)
Name Ann U Madden
Credential OD
Sex Female
Practice address 2251 Dubois Dr, Warsaw, IN, 46580
Phone (574) 269-2777
Fax (574) 371-4697
Enumeration date Jun 24, 2006
Last updated in NPPES Jun 13, 2012
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 201027750 | Medicaid | IN | - |
| P00442910 | Other | - | RAILROAD MEDICARE |
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.
Frequently asked questions
What specialty is Ann Madden?
Ann Madden is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → David Ryser Ophthalmology Physician · Warsaw, IN NPI 1528061363 Christopher Knight Ophthalmology Physician · Warsaw, IN NPI 1659374205 Kevin Hickman Optometrist · Warsaw, IN NPI 1609879030 Bruce Grossnickle Ophthalmology Physician · Warsaw, IN NPI 1518960921 Jon Mark Optometrist · Warsaw, IN NPI 1508869942 Dennis Miller Optometrist · Warsaw, IN NPI 1003819442 Grossnickle Eye Center, Inc. Ophthalmology Physician · Warsaw, IN NPI 1265436125 Ann Buikema Wiarda Ophthalmology Physician · Warsaw, IN NPI 1538146246
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-13.