Mark Harrison, H.I.S.
NPI 1255692844 · Hearing Instrument Specialist · Frisco, TX
Mark Harrison, H.I.S. is a Hearing Instrument Specialist provider in Frisco, TX (NPI 1255692844).
Provider details
- NPI number
- 1255692844
- Entity type
- Individual
- Primary specialty
- Hearing Instrument SpecialistSpeech, Language and Hearing Service Providers
- Credential
- H.I.S.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 80328 (TX)
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
14 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
- 2012-05-31
- Last updated
- 2012-05-31
Frequently asked questions
- What is Mark Harrison's NPI number?
- Mark Harrison's National Provider Identifier (NPI) is 1255692844, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Harrison's specialty?
- Mark Harrison is listed in the NPPES registry with a primary specialty of Hearing Instrument Specialist (Speech, Language and Hearing Service Providers).
- Where is Mark Harrison located?
- Mark Harrison's practice location on file with NPPES is 6500 Preston Rd Ste 201, Frisco, TX 75034-5857.
- What is Mark Harrison's phone number?
- The practice phone number listed in the NPPES registry for Mark Harrison is (972) 786-1777.
- Is Mark Harrison's NPI active?
- Yes — Mark Harrison's NPI (1255692844) is active in the NPPES registry as of the last update on 2012-05-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.