OrganizationActive
John E Ludwigsen DDS Ltd
NPI 1225197460 · Dentist · Sister Bay, WI
John E Ludwigsen DDS Ltd is a Dentist organization in Sister Bay, WI (NPI 1225197460).
Provider details
- NPI number
- 1225197460
- Entity type
- Organization
- Primary specialty
- DentistDental Providers
- Organization subpart
- No
- Authorized official
- John Ludwigson, Owner(920) 854-6556
- License
- 5084015 (WI)
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
940 South Bayshore Drive
Sister Bay, WI 54234-9309
Phone: (920) 854-6556
Fax: (920) 854-6559
Approximate (ZIP-level) locationGet directions
Mailing address
940 South Bayshore Drive
Sister Bay, WI 54234-9309
Registry dates
- Enumerated
- 2006-12-06
- Last updated
- 2020-08-22
Frequently asked questions
- What is John E Ludwigsen DDS Ltd's NPI number?
- John E Ludwigsen DDS Ltd's National Provider Identifier (NPI) is 1225197460, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John E Ludwigsen DDS Ltd?
- John E Ludwigsen DDS Ltd is classified in the NPPES registry as Dentist (Dental Providers).
- Where is John E Ludwigsen DDS Ltd located?
- John E Ludwigsen DDS Ltd's practice location on file with NPPES is 940 South Bayshore Drive, Sister Bay, WI 54234-9309.
- What is John E Ludwigsen DDS Ltd's phone number?
- The practice phone number listed in the NPPES registry for John E Ludwigsen DDS Ltd is (920) 854-6556.
- Who is the authorized official for John E Ludwigsen DDS Ltd?
- The authorized official listed on John E Ludwigsen DDS Ltd's NPPES record is John Ludwigson, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John E Ludwigsen DDS Ltd's NPI active?
- Yes — John E Ludwigsen DDS Ltd's NPI (1225197460) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.