Greta I. Steinbach-Wallis, O.D.
Optometrist · Wilmington, DE
Greta I. Steinbach-Wallis, O.D. is an optometrist with a practice address in Wilmington, Delaware, and NPI 1346289162, issued on Jun 6, 2006. Check the license (Delaware I3-0001135, as entered in NPPES) with the Delaware board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Greta I. Steinbach-Wallis
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- I3-0001135 DE
Self-reported in NPPES; status is on the state search - Practice location
- 3501 Silverside RD, Wilmington, DE 19810
- Phone
- (302) 479-3937
- Enumerated
- Jun 6, 2006
- Record last updated
- Mar 28, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (302) 477-2653
- Medicaid ID
- 0000061422 DE
- Entity
- Type 1 · individual
8 nearest optometrist records → All 164 in Delaware → Look up another NPI →
Also registered at 3501 Silverside RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tabassum Ali, MDOphthalmology Physician1225267362
- Edward Becker, M.D.Ophthalmology Physician1720327323
- Jason Kaplan, M.D.Ophthalmology Physician1275589459
- Rachel Perry, M.D.Ophthalmology Physician1700973450
- Jamie Wohlhagen, O.D.Optometrist1487993143
Verify Greta I. Steinbach-Wallis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this profession
Search for license I3-0001135Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average optometrist in 2024
89 Medicare Part D claims for 27 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 56% of claims.
Most prescribed
- Latanoprost26 claims
- Timolol Maleate20 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.
Greta I. Steinbach-Wallis among 164 optometrist records in Delaware
Greta I. Steinbach-Wallis, O.D. is one of 164 optometrist records with a practice address in Delaware. 79% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 48% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2016 · 59% 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 Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Delaware
There are 164 optometrist records in Delaware.
All 164 in Delaware → Every provider in Wilmington → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Phyllis Chambers, D.O.Wilmington, DE 198101598842676
- Brian Johnson, ODWilmington, DE 198101770063687
- David Jupiter, ODWilmington, DE 198101780794024
- Sarah Nowicki-Duczeminski, ODWilmington, DE 198101861844466
- Angela Pellegrini, O.D.Wilmington, DE 198101841453495
- Alex Quach, ODWilmington, DE 198101104488634
- Jean Stewart, O.D.Wilmington, DE 198101083658207
- Stanley Strauss, O.D.Wilmington, DE 198101083741599
Common questions
What is Greta I. Steinbach-Wallis, O.D.'s NPI number?
Greta I. Steinbach-Wallis, O.D.'s National Provider Identifier (NPI) is 1346289162, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Greta I. Steinbach-Wallis, O.D. located?
The NPPES record lists a practice address at 3501 Silverside RD, Wilmington, DE, 19810. Phone: (302) 479-3937. Providers update this record themselves, so call before visiting.
How can I verify Greta I. Steinbach-Wallis, O.D.'s license?
NPPES lists Delaware license number I3-0001135, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity only.
How much does Greta I. Steinbach-Wallis, O.D. prescribe under Medicare Part D?
In 2024, Greta I. Steinbach-Wallis, O.D. had 89 Medicare Part D claims for 27 beneficiaries; 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.