Thomas K. Marsh, Odsc
NPI 1649242967 · Optometrist · Oconomowoc, WI
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas K. Marsh, Odsc is a Optometrist organization in Oconomowoc, WI (NPI 1649242967).
Provider details
- NPI number
- 1649242967
- Entity type
- Organization
- Primary specialty
- OptometristEye and Vision Services Providers
- Organization subpart
- No
- Authorized official
- Laina Marsh, Office Manager(262) 567-3214
- License
- 1507-035 (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
20 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
Other names (DBA / former)
- Doing business as
- Primary Eyecare Associates
Registry dates
- Enumerated
- 2006-02-02
- Last updated
- 2008-06-27
Frequently asked questions
- What is Thomas K. Marsh, Odsc's NPI number?
- Thomas K. Marsh, Odsc's National Provider Identifier (NPI) is 1649242967, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Thomas K. Marsh, Odsc?
- Thomas K. Marsh, Odsc is classified in the NPPES registry as Optometrist (Eye and Vision Services Providers).
- Where is Thomas K. Marsh, Odsc located?
- Thomas K. Marsh, Odsc's practice location on file with NPPES is 1280 Summit Ave, Oconomowoc, WI 53066-4445.
- What is Thomas K. Marsh, Odsc's phone number?
- The practice phone number listed in the NPPES registry for Thomas K. Marsh, Odsc is (262) 567-3214.
- Does Thomas K. Marsh, Odsc accept Medicare?
- Thomas K. Marsh, Odsc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Thomas K. Marsh, Odsc?
- The authorized official listed on Thomas K. Marsh, Odsc's NPPES record is Laina Marsh, Office Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Thomas K. Marsh, Odsc's NPI active?
- Yes — Thomas K. Marsh, Odsc's NPI (1649242967) is active in the NPPES registry as of the last update on 2008-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.