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John T Ducker, MD

Nephrology Physician in Fort Wayne, IN · enumerated 2006.

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

National Provider Identifier

1003868597

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Registry record

Entity type Individual (Type 1)
Name John T Ducker
Credential MD
Sex Male
Practice address 7836 W Jefferson Blvd, Suite 101, Fort Wayne, IN, 46804
Phone (260) 494-3484
Fax (260) 969-0188
Enumeration date May 16, 2006
Last updated in NPPES Nov 10, 2022

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 35072749 (OH) Secondary
207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 01041634A (IN) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
100321980 Medicaid IN -

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

Where does John Ducker practice?
The practice location on file with NPPES is in Fort Wayne, IN. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Ducker?
The National Provider Identifier (NPI) for John Ducker is 1003868597, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-10.