Gregory Lee Leischer, OD
- Medicare patients, 2024
- 213
- Part D claims, 2024
- 242
- Industry payments
- $14
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 205 W Bridge St, Wausau, WI 54401
- Practice phone
- Call (715) 848-2020
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eyecare Center of Wausau
Wausau, Wisconsin
Find Gregory Leischer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Gregory Lee Leischer is an optometrist in Wausau, Wisconsin
Gregory Leischer practices at Eyecare Center of Wausau in Wausau, Wisconsin.
Gregory Leischer's NPI, 1285770065, was assigned on January 29, 2007. Gregory Leischer graduated from Illinois College of Optometry at Chicago in 1997. Gregory Leischer holds Wisconsin license 2687.
- NPI
- 1285770065NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658461223
- NPI enumeration date
- January 29, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (715) 848-2020
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Gregory Lee Leischer practices at Eyecare Center of Wausau in Wausau, Wisconsin
Gregory Leischer's primary practice is Eyecare Center of Wausau, at 205 W Bridge St, Wausau, WI 54401 in Marathon County. The practice phone is (715) 848-2020.
- Eyecare Center of Wausau205 W Bridge St, Wausau, WI 54401 · Marathon CountyPhone(715) 848-2020
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Gregory Lee Leischer is affiliated with 3 sites of care and 2 medical groups
Gregory Leischer's primary practice is Eyecare Center of Wausau in Wausau, Wisconsin. Dmand AI also links Gregory Leischer to 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Gregory Lee Leischer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gregory Leischer practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Eyecare Center of Wausau | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Gregory Lee Leischer is one of 946 optometrists in Wisconsin
Optometrist is Gregory Leischer's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Gregory Leischer is licensed in Wisconsin.
Specialties and state licenses
- Optometrist, WisconsinPrimary
Optometrists near Gregory Leischer
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Gregory Lee Leischer treated 213 Medicare patients in 2024, average age 72
CMS counts 213 Medicare patients who saw Gregory Leischer in 2024. The largest group is 65 to 74, with 133 patients. 63% of them have high cholesterol, and 60% have high blood pressure. 8% are also on Medicaid. Their average risk score is 0.95, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Gregory Leischer's median patient age at 64, with 53% women.
Gregory Leischer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Gregory Leischer's Medicare patients by sex, 2024
- Women11152%
- Men10248%
Chronic conditions among Gregory Leischer's Medicare patients, 2024
- High cholesterol63%
- High blood pressure60%
- Arthritis27%
- Diabetes23%
- Chronic kidney disease21%
- Anxiety18%
- Cancer15%
- Atrial fibrillation13%
Share of Medicare patients with each condition. A patient can have several.
Gregory Leischer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Gregory Lee Leischer wrote 242 Medicare Part D claims in 2024
In 2024, Gregory Leischer wrote 242 Medicare Part D claims for 51 patients. 69% of them were for generic drugs.
Gregory Leischer's Part D claims by kind of drug, 2024
- Generic167 claims69%
- Brand-name75 claims31%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Gregory Lee Leischer ranks in the 52nd percentile for cataract surgery in Medicare
Gregory Leischer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 29 procedures of cataract surgery by Gregory Leischer, more than 52% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Gregory Leischer ranks in Medicare procedure volume
- Cataract surgery
- 52nd percentile29 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Gregory Lee Leischer received $14 in industry payments in 2025
CMS Open Payments shows 1 general payment to Gregory Leischer from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. CooperVision Inc. paid the most, $14.
Companies that paid Gregory Leischer the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Gregory Lee Leischer graduated from Illinois College of Optometry at Chicago
Gregory Leischer graduated from Illinois College of Optometry at Chicago in 1997.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Gregory Lee Leischer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Gregory Lee Leischer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gregory Lee Leischer's NPI number?
Gregory Lee Leischer's NPI number is 1285770065. It was assigned on January 29, 2007, and it is active in the NPI Registry.
What does Gregory Lee Leischer specialize in?
Gregory Lee Leischer is an optometrist in Wausau, Wisconsin. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Gregory Lee Leischer practice?
Gregory Leischer practices at 205 W Bridge St, Wausau, WI 54401. Gregory Leischer's primary practice is Eyecare Center of Wausau in Wausau, Wisconsin. Dmand AI also links Gregory Leischer to 2 group practices and clinics and 2 medical groups.
What is Gregory Lee Leischer's office phone number?
The practice phone on file for Gregory Leischer is (715) 848-2020.
What is Gregory Lee Leischer's medical license number?
Gregory Leischer holds Wisconsin license 2687.
Does Gregory Lee Leischer accept Medicare?
Yes. CMS lists Gregory Leischer as accepting Medicare assignment.
How many Medicare patients does Gregory Lee Leischer see?
CMS counts 213 Medicare patients who saw Gregory Leischer in 2024, with an average age of 72.
Where did Gregory Lee Leischer go to medical school?
Gregory Leischer graduated from Illinois College of Optometry at Chicago in 1997.
Has Gregory Lee Leischer received payments from drug or device companies?
CMS Open Payments shows $14 in general payments to Gregory Leischer from 1 company from 2025 to 2025. The largest total came from CooperVision Inc.
How long has Gregory Lee Leischer been practicing?
Gregory Leischer graduated from medical school in 1997, 29 years ago.
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