OrganizationActive
Drs. Larson, Martyn, & Hafner, LLP
NPI 1588700900 · General Practice Dentistry · Mequon, WI
Drs. Larson, Martyn, & Hafner, LLP is a General Practice Dentistry organization in Mequon, WI (NPI 1588700900).
Provider details
- NPI number
- 1588700900
- Entity type
- Organization
- Primary specialty
- General Practice DentistryDental Providers
- Organization subpart
- No
- Authorized official
- David Martyn, Dentist Partner(262) 240-0554
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
10562 N Port Washington Rd
Mequon, WI 53092-5537
Phone: (262) 240-1220
Fax: (262) 240-1232
Street-level locationGet directions
Mailing address
10562 N Port Washington Rd
Mequon, WI 53092-5537
Registry dates
- Enumerated
- 2007-01-30
- Last updated
- 2008-03-26
Frequently asked questions
- What is Drs. Larson, Martyn, & Hafner, LLP's NPI number?
- Drs. Larson, Martyn, & Hafner, LLP's National Provider Identifier (NPI) is 1588700900, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Drs. Larson, Martyn, & Hafner, LLP?
- Drs. Larson, Martyn, & Hafner, LLP is classified in the NPPES registry as General Practice Dentistry (Dental Providers).
- Where is Drs. Larson, Martyn, & Hafner, LLP located?
- Drs. Larson, Martyn, & Hafner, LLP's practice location on file with NPPES is 10562 N Port Washington Rd, Mequon, WI 53092-5537.
- What is Drs. Larson, Martyn, & Hafner, LLP's phone number?
- The practice phone number listed in the NPPES registry for Drs. Larson, Martyn, & Hafner, LLP is (262) 240-1220.
- Who is the authorized official for Drs. Larson, Martyn, & Hafner, LLP?
- The authorized official listed on Drs. Larson, Martyn, & Hafner, LLP's NPPES record is David Martyn, Dentist Partner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Drs. Larson, Martyn, & Hafner, LLP's NPI active?
- Yes — Drs. Larson, Martyn, & Hafner, LLP's NPI (1588700900) is active in the NPPES registry as of the last update on 2008-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.