Thomas K. Marsh, O.D.
Optometrist · Oconomowoc, WI
Thomas K. Marsh, O.D. is an optometrist with a practice address in Oconomowoc, Wisconsin, and NPI 1578556239, issued on Aug 29, 2005. Check the license (Wisconsin 1507, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thomas K. Marsh
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 1507 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1280 Summit Ave, Oconomowoc, WI 53066
- Phone
- (262) 567-3214
- Enumerated
- Aug 29, 2005
- Record last updated
- Jan 9, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (262) 567-2449
- Medicaid ID
- 38564400 WI
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,161 in Wisconsin → Look up another NPI →
Verify Thomas K. Marsh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 1507Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $62.88
1 payment: food and beverage; the largest payer was Alcon Vision LLC. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Thomas K. Marsh among 1,161 optometrist records in Wisconsin
Thomas K. Marsh, O.D. is one of 1,161 optometrist records with a practice address in Wisconsin. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2012 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 optometrist records list a practice address in Oconomowoc
They are 13 of the 506 NPPES records with a practice address in Oconomowoc, and 1,161 optometrist records in Wisconsin.
All 1,161 in Wisconsin → Every provider in Oconomowoc → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- James Baietto, ODOconomowoc, WI 530661265401624
- Amber Bartels, ODOconomowoc, WI 530661962651364
- Erik Bjork, O.DOconomowoc, WI 530661962453589
- David Bjork, O.D.Oconomowoc, WI 530661487726535
- Macie Brahm, ODOconomowoc, WI 530661831931914
- Christian Camus, ODOconomowoc, WI 530661700895836
- Joshua Heinecke, O.D.Oconomowoc, WI 530661285072686
- Jennifer Hillmann, O.D.Oconomowoc, WI 530661871511022
Common questions
What is Thomas K. Marsh, O.D.'s NPI number?
Thomas K. Marsh, O.D.'s National Provider Identifier (NPI) is 1578556239, issued on Aug 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Thomas K. Marsh, O.D. located?
The NPPES record lists a practice address at 1280 Summit Ave, Oconomowoc, WI, 53066. Phone: (262) 567-3214. Providers update this record themselves, so call before visiting.
How can I verify Thomas K. Marsh, O.D.'s license?
NPPES lists Wisconsin license number 1507, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.