Robert J. Mertz, O.D.
Optometrist · Fitchburg, WI
Robert J. Mertz, O.D. is an optometrist with a practice address in Fitchburg, Wisconsin, and NPI 1174693246, issued on Nov 8, 2006. Check the license (Wisconsin 2157, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Robert J. Mertz
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 2157 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3051 Cahill Main, Fitchburg, WI 53711
- Phone
- (608) 661-7200
- Enumerated
- Nov 8, 2006
- Record last updated
- Oct 17, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 38530200 WI
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,161 in Wisconsin → Look up another NPI →
Also registered at 3051 Cahill Main
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Qinglu Bai, LPC-ITProfessional Counselor1558258194
- Carol Ballweg, APNPFamily Nurse Practitioner1609990381
Verify Robert J. Mertz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 2157Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average optometrist in 2024
124 Medicare Part D claims for 32 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Latanoprost67 claims
- Rocklatan11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 80.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $101.32
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.
Robert J. Mertz among 1,161 optometrist records in Wisconsin
Robert J. Mertz, 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 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 50% 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).
12 optometrist records list a practice address in Fitchburg
They are 12 of the 740 NPPES records with a practice address in Fitchburg, and 1,161 optometrist records in Wisconsin.
All 1,161 in Wisconsin → Every provider in Fitchburg → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Peter Andreakos, ODMadison, WI 537111891823506
- Adam Burns, ODFitchburg, WI 537111215467758
- John Dabel, ODFitchburg, WI 537111215956370
- Joshua Harshman, ODFitchburg, WI 537111215811435
- Bryce Kuehl, ODFitchburg, WI 537111326881939
- Sacha Lundgren, ODFitchburg, WI 537111639198971
- Ann Patkowski, ODFitchburg, WI 537111063437036
- Timothy Schwefel, ODFitchburg, WI 537111619993599
Common questions
What is Robert J. Mertz, O.D.'s NPI number?
Robert J. Mertz, O.D.'s National Provider Identifier (NPI) is 1174693246, issued on Nov 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert J. Mertz, O.D. located?
The NPPES record lists a practice address at 3051 Cahill Main, Fitchburg, WI, 53711. Phone: (608) 661-7200. Providers update this record themselves, so call before visiting.
How can I verify Robert J. Mertz, O.D.'s license?
NPPES lists Wisconsin license number 2157, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Robert J. Mertz, O.D. prescribe under Medicare Part D?
In 2024, Robert J. Mertz, O.D. had 124 Medicare Part D claims for 32 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
What is Robert J. Mertz, O.D.'s MIPS final score?
The 2023 MIPS final score is 80.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.