caretrace.iopowered by▸healthparse
SearchCohort Builder
Tools▾
KOL FinderTerritoriesDrug Compare
AI Query
Browse▾
By stateBy specialty
Pricing
SearchCohort BuilderToolsKOL FinderTerritoriesDrug CompareAI QueryBrowseBy stateBy specialtyPricing
PROVIDER PROFILE · NPI 1306841630

Duane TolsmaO.D.

PRACTICEGREAT LAKES EYE CARE PCSee all providers at this practice →
OptometrySaint Joseph, MII
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 230021
Hospital
PRESCRIBING · PART D · 2024
Total Rx claims
293
Beneficiaries
—
Total drug cost
$25K
Distinct drugs
8
Brand share
44.0%
Top prescribed drugs
Latanoprost63 claims
Neomycin/Polymyxin B/Dexametha57 claims
Prednisolone Acetate47 claims
Erythromycin Base41 claims
Cyclosporine31 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,076
Unique beneficiaries
—
Total services
1,262
Distinct HCPCS
11
Medicare payment
$81K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 962 Optometry providers in MI — top quintile (cohort median 177).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$20
Payment records
1
By payment type
Food and Beverage$20
REFERRAL NETWORK

Where Duane Tolsma'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). 17 inbound referrers · 44 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
LAKELAND HOSPITALS AT NILES AND ST JOSEPH, INC254459
Thomas Pow
Cardiology · Saint Joseph, MI
3140
Dilip Arora
Cardiology · Saint Joseph, MI
2430
ASCENSION BORGESS LEE HOSPITAL2032
Yu-Lam Chiu
Cardiology · Saint Joseph, MI
1723
Craig Okonski
Podiatry · Saint Joseph, MI
1620
Christopher Shier
Diagnostic Radiology · St Joseph, MI
1518
Stanley Pletcher
Ophthalmology · Saint Joseph, MI
1526
Matthew Campbell
Family Practice · Saint Joseph, MI
1325
Sharon Deskins
Internal Medicine · Saint Joseph, MI
1319
David Halstead
Podiatry · Saint Joseph, MI
1215
OTTMAR, MARK1217
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
LAKELAND HOSPITALS AT NILES AND ST JOSEPH, INC252477
LAKELAND COMMUNITY HOSPITAL WATERVLIET3753
David Cooke
Ophthalmology · Saint Joseph, MI
2862
Polya Baghelai
Diagnostic Radiology · South Bend, IN
2530
Dilip Arora
Cardiology · Saint Joseph, MI
2329
Jerome Kuhnlein
Cardiology · Saint Joseph, MI
2241
Stanley Pletcher
Ophthalmology · Saint Joseph, MI
1935
NPI 12058724391824
Thomas Pow
Cardiology · Saint Joseph, MI
1832
Craig Okonski
Podiatry · Saint Joseph, MI
1823
Kenneth Edwards
Orthopedic Surgery · Saint Joseph, MI
1737
Yu-Lam Chiu
Cardiology · Saint Joseph, MI
1723
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.