What is Mark Klewin's NPI number?

Mark Klewin's National Provider Identifier (NPI) is 1114191996, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Klewin's specialty?

Mark Klewin is listed in the NPPES registry with a primary specialty of Hearing Instrument Specialist (Speech, Language and Hearing Service Providers).

Where is Mark Klewin located?

Mark Klewin's practice location on file with NPPES is 4038 E Towne Blvd, Madison, WI 53704-3734.

What is Mark Klewin's phone number?

The practice phone number listed in the NPPES registry for Mark Klewin is (608) 240-2900.

Is Mark Klewin's NPI active?

Yes — Mark Klewin's NPI (1114191996) is active in the NPPES registry as of the last update on 2008-04-14.

IndividualActive

Mark Klewin, H,I.S.

NPI 1114191996 · Hearing Instrument Specialist · Madison, WI

Mark Klewin, H,I.S. is a Hearing Instrument Specialist provider in Madison, WI (NPI 1114191996).

Provider details

NPI number: 1114191996
Entity type: Individual
Primary specialty: Hearing Instrument SpecialistSpeech, Language and Hearing Service Providers
Credential: H,I.S.
Sex: Male
Sole proprietor: No
License: 1293-060 (WI)

Specialties & taxonomies

Hearing Instrument SpecialistPrimary237700000XLicense 1293-060 (WI)
Speech, Language and Hearing Service Providers

Profile Score

Detailed profile(87/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
18 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

4038 E Towne Blvd

Madison, WI 53704-3734

Phone: (608) 240-2900

Fax: (920) 887-9655

Street-level locationGet directions

More WI providers

Mailing address

140 Corporate Dr

Beaver Dam, WI 53916-1281

Enumerated: 2008-04-14
Last updated: 2008-04-14

Frequently asked questions

What is Mark Klewin's NPI number?: Mark Klewin's National Provider Identifier (NPI) is 1114191996, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Mark Klewin's specialty?: Mark Klewin is listed in the NPPES registry with a primary specialty of Hearing Instrument Specialist (Speech, Language and Hearing Service Providers).
Where is Mark Klewin located?: Mark Klewin's practice location on file with NPPES is 4038 E Towne Blvd, Madison, WI 53704-3734.
What is Mark Klewin's phone number?: The practice phone number listed in the NPPES registry for Mark Klewin is (608) 240-2900.
Is Mark Klewin's NPI active?: Yes — Mark Klewin's NPI (1114191996) is active in the NPPES registry as of the last update on 2008-04-14.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.