Charles Chapman
NPI 1366674533 · Hearing Instrument Specialist · O Fallon, IL
Charles Chapman is a Hearing Instrument Specialist provider in O Fallon, IL (NPI 1366674533).
Provider details
- NPI number
- 1366674533
- Entity type
- Individual
- Primary specialty
- Hearing Instrument SpecialistSpeech, Language and Hearing Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 724 (TN)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-08-20
- Last updated
- 2009-08-20
Frequently asked questions
- What is Charles Chapman's NPI number?
- Charles Chapman's National Provider Identifier (NPI) is 1366674533, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Chapman's specialty?
- Charles Chapman is listed in the NPPES registry with a primary specialty of Hearing Instrument Specialist (Speech, Language and Hearing Service Providers).
- Where is Charles Chapman located?
- Charles Chapman's practice location on file with NPPES is 1415 W Highway 50, O Fallon, IL 62269-1618.
- What is Charles Chapman's phone number?
- The practice phone number listed in the NPPES registry for Charles Chapman is (618) 624-4471.
- Is Charles Chapman's NPI active?
- Yes — Charles Chapman's NPI (1366674533) is active in the NPPES registry as of the last update on 2009-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.