Gregory Lee Leischer, O.D.
Optometrist · Wausau, WI
Gregory Lee Leischer, O.D. is an optometrist with a practice address in Wausau, Wisconsin, and NPI 1285770065, issued on Jan 29, 2007. Check the license (Wisconsin 2687, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Lee Leischer
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 2687 WI
Self-reported in NPPES; status is on the state search - Practice location
- 611 Stevens Dr, Wausau, WI 54401
- Phone
- (715) 848-2020
- Enumerated
- Jan 29, 2007
- Record last updated
- Apr 18, 2023
- Medicaid ID
- 38601100 WI
- Medicare enrollment
- Enrolled (PECOS I20080823000056); accepts Medicare assignment
- Medical or professional school
- Illinois College Of Optometry At Chicago, 1997
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,161 in Wisconsin → Look up another NPI →
Verify Gregory Lee Leischer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 2687Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average optometrist in 2024
242 Medicare Part D claims for 51 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.
Most prescribed
- Latanoprost180 claims
- Timolol Maleate48 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.
Industry payments in 2024: $348.69
14 payments; by number, the most common kind was food and beverage; the largest payer was Oyster Point Pharma, 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
- Eyecare Center OF Wausau LLCWausau, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Lee Leischer among 1,161 optometrist records in Wisconsin
Gregory Lee Leischer, 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 2007, is newer than 50% of them.
- NPI issued2007 · 50% of these records are older, 40% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1997 · median 2008 among the 752 with a school on file
- Record last updated2023 · 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).
27 optometrist records list a practice address in Wausau
They are 27 of the 1,958 NPPES records with a practice address in Wausau, and 1,161 optometrist records in Wisconsin.
All 1,161 in Wisconsin → Every provider in Wausau → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Robert Alexejun, O.D.Wausau, WI 544011235275009
- Erin Daggett, O.D.Wausau, WI 544011215342084
- Richard Felty, O.D.Wausau, WI 544011477667475
- Raymond Goga, ODWausau, WI 544011982676235
- Erin Goga, O.D.Wausau, WI 544011689816753
- Robert Kessen, O.D.Wausau, WI 544011093777815
- Kelsey Koerner, O.D.Wausau, WI 544011659729580
- R Marquardt, ODWausau, WI 544011417929761
Common questions
What is Gregory Lee Leischer, O.D.'s NPI number?
Gregory Lee Leischer, O.D.'s National Provider Identifier (NPI) is 1285770065, issued on Jan 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Lee Leischer, O.D. located?
The NPPES record lists a practice address at 611 Stevens Dr, Wausau, WI, 54401. Phone: (715) 848-2020. Providers update this record themselves, so call before visiting.
How can I verify Gregory Lee Leischer, O.D.'s license?
NPPES lists Wisconsin license number 2687, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Lee Leischer, O.D. prescribe under Medicare Part D?
In 2024, Gregory Lee Leischer, O.D. had 242 Medicare Part D claims for 51 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.