Doctor profile · Federal record

Dr. Gregory Leischer, O.D.

Optometrist (CMS: Optometry) · Wausau, WI

  • NPI 1285770065
  • Accepts Medicare
  • 29 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
611 Stevens Dr
Wausau, WI 544013006
(715) 848-2020
Mailing address
611 Stevens Drive
Wausau, WI 544013006

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
April 18, 2023
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
Wisconsin #2687
Medicaid
WI #38601100

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1285770065. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
351
Distinct HCPCS
7
Medicare allowed
$33,834
HCPCS Description Services Patients Avg allowed
92014 Established patient complete exam of visual system 186 185 $121
92134 Imaging of retina 42 33 $38
99213 Established patient office or other outpatient visit, 20-29 minutes 39 32 $85
92133 Imaging of optic nerve 37 32 $34
92004 New patient complete exam of visual system 18 18 $143
92273 Measurement of retinal and optic nerve function 18 18 $121
92250 Photography of the retina 11 11 $36

In context: peer comparison

Among 14 peers in this city , average services per provider: 96. This provider delivers 3.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$349
Transactions
14
Manufacturers
7
Payer (manufacturer) Industry Txns Amount
Oyster Point Pharma, Inc. 4 $126.45
Ocular Therapeutix, Inc. 1 $66.51
Alcon Vision LLC 4 $62.87
CooperVision Inc. 2 $31.61
Tarsus Pharmaceuticals, Inc. 1 $24.36
Bausch & Lomb Americas Inc. 1 $21.57
Johnson & Johnson Vision Care, Inc. 1 $15.32

By nature of payment

Food and Beverage
$349

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
193
Patients
45
Total drug cost
$4,749
Drug Type Claims Patients Total cost
Latanoprost Generic 144 33 $2,817
Timolol Maleate Generic 49 12 $1,932

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregory Leischer's medical specialty?
Dr. Gregory Leischer practices Optometrist in Wausau, WI.
Where does Dr. Gregory Leischer practice?
Dr. Gregory Leischer practices at 611 Stevens Dr, Wausau, WI 544013006. Office phone: 7158482020.
What is Dr. Gregory Leischer's NPI?
Dr. Gregory Leischer's National Provider Identifier (NPI) is 1285770065, issued by NPPES.
Does Dr. Gregory Leischer accept Medicare assignment?
Yes. Dr. Gregory Leischer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Leischer commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Imaging of retina (HCPCS 92134); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.