Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Nicholas Eli Oldham
Audiologist in Harrisburg, IL · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1417245606
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Registry record
Entity type Individual (Type 1)
Name Dr. Nicholas Eli Oldham
Sex Male
Practice address 1220 E Sloan St, Harrisburg, IL, 62946
Phone (618) 253-3277
Fax (618) 253-8060
Enumeration date Jul 21, 2011
Last updated in NPPES May 1, 2014
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License 147001391 (IL) Primary
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 is the NPI number for Nicholas Oldham?
The National Provider Identifier (NPI) for Nicholas Oldham is 1417245606, a Type 1 (individual) record in the CMS NPPES registry.
Where does Nicholas Oldham practice?
The practice location on file with NPPES is in Harrisburg, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-01.