Susan N. Diederich, O.D.
Optometrist · Wauwatosa, WI
Susan N. Diederich, O.D. is an optometrist with a practice address in Wauwatosa, Wisconsin, and NPI 1750318580, issued on Jun 27, 2006. Check the license (Wisconsin 2981-035, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Susan N. Diederich
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 2981-035 WI
Self-reported in NPPES; status is on the state search - Practice location
- 7511 Harwood Ave, Wauwatosa, WI 53213
- Phone
- (414) 453-1300
- Enumerated
- Jun 27, 2006
- Record last updated
- Sep 17, 2025
- Fax
- (414) 453-1330
- Medicaid ID
- 38624700 WI
- Medicare enrollment
- Enrolled (PECOS I20040930000934); may accept Medicare assignment
- Medical or professional school
- Indiana University - School Of Optometry, 2004
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,161 in Wisconsin → Look up another NPI →
Also registered at 7511 Harwood Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Claire Bublitz, OTR/L, CLVTOccupational Therapist1396825808
- Mark Veth, ODOptometrist1649381518
Verify Susan N. Diederich in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 2981-035Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average optometrist in 2024
12 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $14.09
1 payment: food and beverage; the largest payer was Bausch & Lomb Americas Inc. 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.
Bills Medicare through one group practice
- Markerry Enterprises LLCWauwatosa, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Susan N. Diederich among 1,161 optometrist records in Wisconsin
Susan N. Diederich, 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 fileYes · 65% of these records are
- Graduated2004 · median 2008 among the 752 with a school on file
- Record last updated2025 · 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).
Optometrist providers in Wisconsin
There are 1,161 optometrist records in Wisconsin.
All 1,161 in Wisconsin → Every provider in Wauwatosa → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Heather Hinson, O.D.Milwaukee, WI 532131073654430
- Payton Holden Bista, ODWaowatosa, WI 532131710621842
- Megan Lind, O.D.Wauwatosa, WI 532131326153065
- Mark Veth, ODWauwatosa, WI 532131649381518
- Joan Beyer, O.D.West Allis, WI 532141578687505
- Jaime Blanchard, O.D.West Allis, WI 532141700880499
- Jeffery Braun, O.D.West Allis, WI 532141235106824
- Tracy Buege, O.D.Milwaukee, WI 532121891944898
Common questions
What is Susan N. Diederich, O.D.'s NPI number?
Susan N. Diederich, O.D.'s National Provider Identifier (NPI) is 1750318580, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Susan N. Diederich, O.D. located?
The NPPES record lists a practice address at 7511 Harwood Ave, Wauwatosa, WI, 53213. Phone: (414) 453-1300. Providers update this record themselves, so call before visiting.
How can I verify Susan N. Diederich, O.D.'s license?
NPPES lists Wisconsin license number 2981-035, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Susan N. Diederich, O.D. prescribe under Medicare Part D?
In 2024, Susan N. Diederich, O.D. had 12 Medicare Part D claims; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions 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.