Troy Hollowell, HIS
NPI 1659903862 · Hearing Instrument Specialist · Marion, IL
Troy Hollowell, HIS is a Hearing Instrument Specialist provider in Marion, IL (NPI 1659903862).
Provider details
- NPI number
- 1659903862
- Entity type
- Individual
- Primary specialty
- Hearing Instrument SpecialistSpeech, Language and Hearing Service Providers
- Credential
- HIS
- Sex
- Male
- Sole proprietor
- No
- License
- 3338 (IL)
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
6 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
- 2020-02-05
- Last updated
- 2020-02-05
- Certified
- 2020-02-05
Frequently asked questions
- What is Troy Hollowell's NPI number?
- Troy Hollowell's National Provider Identifier (NPI) is 1659903862, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Troy Hollowell's specialty?
- Troy Hollowell is listed in the NPPES registry with a primary specialty of Hearing Instrument Specialist (Speech, Language and Hearing Service Providers).
- Where is Troy Hollowell located?
- Troy Hollowell's practice location on file with NPPES is 2406 Williamson County Pkwy, Marion, IL 62959-5271.
- What is Troy Hollowell's phone number?
- The practice phone number listed in the NPPES registry for Troy Hollowell is (618) 997-5856.
- Is Troy Hollowell's NPI active?
- Yes — Troy Hollowell's NPI (1659903862) is active in the NPPES registry as of the last update on 2020-02-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.