Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
James C. Bigham, O.D.
Optometrist in Evansville, IN · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528053113
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Registry record
Entity type Individual (Type 1)
Name James C. Bigham
Credential O.D.
Sex Male
Practice address 634 Cross Valley Cir, Evansville, IN, 47710
Phone (812) 401-7777
Fax (812) 429-0392
Enumeration date Sep 20, 2005
Last updated in NPPES Jun 30, 2011
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 |
|---|---|---|---|
| 200394590A | Medicaid | IN | - |
| P00928487 | Other | IN | RAILROAD MEDICARE |
| 000000244130 | Other | IN | ANTHEM |
| 22479 | Other | IN | NVA |
| 6503910001 | Other | IN | DMERC |
| 16096 | Other | IN | SPECTERA |
| 7288496 | Other | IN | AETNA |
| BI1466240 | Other | IN | HIGHMARK CLARITY VISION |
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
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.
What specialty is James Bigham?
James Bigham 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.
Other providers at this practice address
Browse all → Jeffrey Irvin Optometrist · Evansville, IN NPI 1013025683 Professional Eyecare Management, LLC Optometrist · Evansville, IN NPI 1124170964 Advanced Eye Care, P.C. Optometrist · Evansville, IN NPI 1780886499 Northside Eyecare Associates, LLC Optometrist · Evansville, IN NPI 1306077839 Heather Russ Optometrist · Evansville, IN NPI 1770894222 Hannah Powers Optometrist · Evansville, IN NPI 1245750785 Caleb Chesnut Optometrist · Evansville, IN NPI 1356073662
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-30.