Mark Baker
NPI 1366688582 · Hearing Instrument Specialist · Surprise, AZ
Mark Baker is a Hearing Instrument Specialist provider in Surprise, AZ (NPI 1366688582).
Provider details
- NPI number
- 1366688582
- Entity type
- Individual
- Primary specialty
- Hearing Instrument SpecialistSpeech, Language and Hearing Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- HAD5543 (AZ)
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
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
4 documented practice locations
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
Additional practice locations (3)
- 312 W 10th St Ste 1Casa Grande, AZ 85122-3940Phone: (520) 836-8366Fax: (520) 836-2229
- 18275 N 59th Ave Ste 184Glendale, AZ 85308-1254Phone: (602) 841-9424Fax: (602) 841-3713
- 13631 N 59th AveGlendale, AZ 85304-1203Phone: (602) 841-9424
Registry dates
- Enumerated
- 2008-12-17
- Last updated
- 2019-01-14
Frequently asked questions
- What is Mark Baker's NPI number?
- Mark Baker's National Provider Identifier (NPI) is 1366688582, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Baker's specialty?
- Mark Baker is listed in the NPPES registry with a primary specialty of Hearing Instrument Specialist (Speech, Language and Hearing Service Providers).
- Where is Mark Baker located?
- Mark Baker's practice location on file with NPPES is 18747 N Reems Rd Ste 540, Surprise, AZ 85374.
- What is Mark Baker's phone number?
- The practice phone number listed in the NPPES registry for Mark Baker is (623) 214-1700.
- Is Mark Baker's NPI active?
- Yes — Mark Baker's NPI (1366688582) is active in the NPPES registry as of the last update on 2019-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.