Louise Marquardt, O.D.
NPI 1194873950 · Optometrist · Appleton, WI
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louise Marquardt, O.D. is a Optometrist provider in Appleton, WI (NPI 1194873950).
Provider details
- NPI number
- 1194873950
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 2552 - 035 (WI)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
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
2 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 (1)
- 4301 W Wisconsin AveAppleton, WI 54913-8605Phone: (920) 730-8770
Registry dates
- Enumerated
- 2007-01-08
- Last updated
- 2024-01-08
- Certified
- 2024-01-08
Frequently asked questions
- What is Louise Marquardt's NPI number?
- Louise Marquardt's National Provider Identifier (NPI) is 1194873950, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louise Marquardt's specialty?
- Louise Marquardt is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Louise Marquardt located?
- Louise Marquardt's practice location on file with NPPES is 4155 N Galaxy Dr Ste 101, Appleton, WI 54913-2728.
- What is Louise Marquardt's phone number?
- The practice phone number listed in the NPPES registry for Louise Marquardt is (920) 993-0790.
- Does Louise Marquardt accept Medicare?
- Louise Marquardt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louise Marquardt's NPI active?
- Yes — Louise Marquardt's NPI (1194873950) is active in the NPPES registry as of the last update on 2024-01-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.