Doctor profile · Federal record

Dr. Martin Williamson, OD

Optometrist (CMS: Optometry) · La Crosse, WI

  • NPI 1740778646
  • Accepts Medicare
  • 8 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1836 South Ave
La Crosse, WI 54601
(608) 782-7300

Credentials & registration

NPPES · NUCC
NPI registered
April 2018 — 8 yrs on file
Profile last updated
August 31, 2018
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
Wisconsin #3509

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1740778646. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,174
Distinct HCPCS
7
Medicare allowed
$53,666
HCPCS Description Services Patients Avg allowed
66984 Removal of cataract with insertion of prosthetic lens 2,700 20 $1
92014 Established patient complete exam of visual system 220 219 $122
99213 Established patient office or other outpatient visit, 20-29 minutes 78 66 $86
92004 New patient complete exam of visual system 73 73 $145
92134 Imaging of retina 47 38 $39
99214 Established patient office or other outpatient visit, 30-39 minutes 29 27 $122
92133 Imaging of optic nerve 27 24 $35

In context: peer comparison

Among 13 peers in this city , average services per provider: 146. This provider delivers 22× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
120
Patients
45
Total drug cost
$3,308
Drug Type Claims Patients Total cost
Prednisolone Acetate Generic 32 32 $1,726
Latanoprost Generic 28 0 $247
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 17 0 $302
Ofloxacin Generic 15 0 $527
Neomycin-Polymyxin-Dexameth (Neomycin/Polymyxin B/Dexametha) Brand 14 13 $229
Timolol Maleate Generic 14 0 $277

Frequently asked questions

Auto-generated from federal data
What is Dr. Martin Williamson's medical specialty?
Dr. Martin Williamson practices Optometrist in La Crosse, WI.
Where does Dr. Martin Williamson practice?
Dr. Martin Williamson practices at 1836 South Ave, La Crosse, WI 54601. Office phone: 6087827300.
What is Dr. Martin Williamson's NPI?
Dr. Martin Williamson's National Provider Identifier (NPI) is 1740778646, issued by NPPES.
Does Dr. Martin Williamson accept Medicare assignment?
Yes. Dr. Martin Williamson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Martin Williamson commonly perform?
Top Medicare-reported procedures in 2023: Removal of cataract with insertion of prosthetic lens (HCPCS 66984); Established patient complete exam of visual system (HCPCS 92014); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.