What is Jon Williamson's specialty?

Jon Williamson (NPI 1932104114) is a Medicare-billing provider whose primary specialty is Optometry in Sparta, WI.

Where does Jon Williamson practice?

Jon Williamson practices in Sparta, WI, based on the location reported in the CMS Medicare provider datasets for NPI 1932104114.

How much does Medicare pay Jon Williamson?

Jon Williamson (NPI 1932104114) received approximately $31K in total Medicare Part B payments, serving 368 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1932104114

Jon WilliamsonOD

PRACTICEGUNDERSEN CLINIC, LTD.See all providers at this practice →

OptometrySparta, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

425

Unique beneficiaries

—

Total services

3,003

Distinct HCPCS

Medicare payment

$29K

Peer benchmark

Total Medicare services vs. 691 Optometry providers in WI — top quintile (cohort median 772).

PRESCRIBING · PART D · 2024

Total Rx claims

422

Beneficiaries

—

Total drug cost

$17K

Distinct drugs

Brand share

12.1%

Top prescribed drugs

Latanoprost178 claims

Timolol Maleate80 claims

Brimonidine Tartrate34 claims

Cyclosporine28 claims

Neomycin/Polymyxin B/Dexametha25 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Jon Williamson's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 9 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
GUNDERSEN LUTHERAN MEDICAL CENTER INC	121	406
STEFANSKI-WILLIAMS, JESSICA	47	190
Daniel Schraith Pathology · La Crosse, WI	45	98
PACE, MICHAEL	33	151
COFFEY, JOHN	27	91
Julie Dean Physician Assistant · Hayward, WI	16	67
Rose Wolbrink Family Practice · Sparta, WI	15	61
MAYO CLINIC HEALTH SYSTEM-SOUTHWEST WISCONSIN REGION, INC.	14	23
Jeffry Degenhardt Pathology · La Crosse, WI	12	31

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events