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 1598713919

Mark Duncan

PRACTICEFREELAND PRIMARY CARE PLLCSee all providers at this practice →
Family PracticeFreeland, WAI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
Final MIPS score
83.2
Quality
72.6
Cost
80.5
Improvement activities
40.0
Promoting interop.
0.0
Payment adjustment
0.34%
Group
PRESCRIBING · PART D · 2024
Total Rx claims
669
Beneficiaries
—
Total drug cost
$17K
Distinct drugs
26
Brand share
9.0%
Top prescribed drugs
Atorvastatin Calcium94 claims
Lisinopril48 claims
Amlodipine Besylate44 claims
Losartan Potassium40 claims
Metformin Hcl38 claims
REFERRAL NETWORK

Where Mark Duncan'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). 12 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Laboratory Corporation Of America
Clinical Laboratory · Seattle, WA
160266
Robert Hawkins
Diagnostic Radiology · Lynnwood, WA
5491
Jacqueline Perez
Physician Assistant · Avon, CT
3553
Brook Ott
Nurse Practitioner · Coupeville, WA
3255
David Lemme
Family Practice · Oak Harbor, WA
2539
Starla Smit
Physician Assistant · Coupeville, WA
2335
Northwest Pathology Pllc
Clinical Laboratory · Bellingham, WA
2243
Nicholas Perera
Emergency Medicine · Coupeville, WA
1619
Nancy Neubauer
Diagnostic Radiology · Everett, WA
1421
Mark Mayhle
Diagnostic Radiology · Lynnwood, WA
1217
PUBLIC HOSPITAL DIST NO 1 SKAGIT1220
Robert Johnson
Ophthalmology · Oak Harbor, WA
1116
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.