Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John R Wigneswaran, MD
Nephrology Physician in Dayton, OH · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679556609
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Registry record
Entity type Individual (Type 1)
Name John R Wigneswaran
Credential MD
Sex Male
Practice address 455 Turner Rd, Dayton, OH, 45415
Phone (937) 208-7930
Fax (937) 222-7910
Enumeration date Nov 23, 2005
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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 |
|---|---|---|---|
| 310821503033 | Other | - | MEDICARE RAILROAD |
| 000000221825 | Other | - | ANTHEM |
| 2809872 | Other | - | AETNA |
| 3120003 | Other | - | UHC |
| 3108215037021 | Other | - | UNITED MINE WORKERS |
| 2306918 | Medicaid | OH | - |
| D80805 | Other | - | HUMANA |
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
Where does John Wigneswaran practice?
The practice location on file with NPPES is in Dayton, OH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Wigneswaran?
The National Provider Identifier (NPI) for John Wigneswaran is 1679556609, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.