Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Christa L Walling, O.D.
Optometrist in Greenfield, IN · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1306833421
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Registry record
Entity type Individual (Type 1)
Name Dr. Christa L Walling
Credential O.D.
Sex Female
Practice address 1451 Jason Rd, Greenfield, IN, 46140
Phone (317) 462-6601
Fax (317) 462-6625
Enumeration date Oct 4, 2005
Last updated in NPPES Jul 8, 2007
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 |
|---|---|---|---|
| 000000198622 | Other | IN | ANTHEM |
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 NPI 1306833421 active?
Yes, as of the latest NPPES snapshot, NPI 1306833421 is active (record last updated 2007-07-08).
How do I verify Christa Walling's NPI record?
Cross-check NPI 1306833421 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Elaine Scott Optometrist · Greenfield, IN NPI 1184611295 Hancock Eye Associates PC Optometrist · Greenfield, IN NPI 1891782991 Beyond 20/20 Vision Therapy Optometrist · Greenfield, IN NPI 1386949279 Nicholas Mccolley Optometrist · Greenfield, IN NPI 1104277920 Caitlin Parks Optometrist · Greenfield, IN NPI 1083456545
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.