Mark Spankowski, OD
NPI 1831223338 · Optometrist · Oconomowoc, WI
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Spankowski, OD is a Optometrist provider in Oconomowoc, WI (NPI 1831223338).
Provider details
- NPI number
- 1831223338
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- No
- License
- 1834-035 (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
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
Mailing address
Registry dates
- Enumerated
- 2007-03-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Spankowski's NPI number?
- Mark Spankowski's National Provider Identifier (NPI) is 1831223338, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Spankowski's specialty?
- Mark Spankowski is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Mark Spankowski located?
- Mark Spankowski's practice location on file with NPPES is 608 E. Summit Ave., Oconomowoc, WI 53066.
- What is Mark Spankowski's phone number?
- The practice phone number listed in the NPPES registry for Mark Spankowski is (262) 567-6565.
- Does Mark Spankowski accept Medicare?
- Mark Spankowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Spankowski's NPI active?
- Yes — Mark Spankowski's NPI (1831223338) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.