Heather Grinder, H.I.S.
NPI 1659858439 · Hearing Instrument Specialist · Merrillville, IN
Heather Grinder, H.I.S. is a Hearing Instrument Specialist provider in Merrillville, IN (NPI 1659858439).
Provider details
- NPI number
- 1659858439
- Entity type
- Individual
- Primary specialty
- Hearing Instrument SpecialistSpeech, Language and Hearing Service Providers
- Credential
- H.I.S.
- Sex
- Female
- Sole proprietor
- No
- License
- 17001478A (IN)
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
7 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
- 2018-07-24
- Last updated
- 2018-07-24
Frequently asked questions
- What is Heather Grinder's NPI number?
- Heather Grinder's National Provider Identifier (NPI) is 1659858439, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heather Grinder's specialty?
- Heather Grinder is listed in the NPPES registry with a primary specialty of Hearing Instrument Specialist (Speech, Language and Hearing Service Providers).
- Where is Heather Grinder located?
- Heather Grinder's practice location on file with NPPES is 9120 Connecticut Dr., Merrillville, IN 46410.
- What is Heather Grinder's phone number?
- The practice phone number listed in the NPPES registry for Heather Grinder is (219) 769-1222.
- Is Heather Grinder's NPI active?
- Yes — Heather Grinder's NPI (1659858439) is active in the NPPES registry as of the last update on 2018-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.