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 1124010095

William KoonceMD

PRACTICEPAUL S AIJIAN MD WILLIAM C KOONCE MDSee all providers at this practice →
Internal MedicineSanta Barbara, CAI
CROSS-REFERENCE

Related data on other Healthparse brands

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

Hospital & Facility Affiliations (8)

CCN 057163
Home health agency
CCN 058324
Home health agency
CCN 059010
Home health agency
CCN 051540
Hospice
CCN 050357
Hospital
CCN 050396
Hospital
CCN 051331
Hospital
CCN 555023
Nursing home
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$1K
Payment records
52
By payment type
Food and Beverage$1K
QUALITY · MIPS · 2024
Final MIPS score
94.0
Quality
100.0
Cost
79.9
Improvement activities
40.0
Promoting interop.
0.0
Payment adjustment
0.80%
Individual
PRESCRIBING · PART D · 2024
Total Rx claims
8,095
Beneficiaries
—
Total drug cost
$808K
Distinct drugs
135
Brand share
21.7%
Top prescribed drugs
Atorvastatin Calcium512 claims
Levothyroxine Sodium465 claims
Losartan Potassium442 claims
Escitalopram Oxalate253 claims
Gabapentin251 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,906
Unique beneficiaries
—
Total services
4,887
Distinct HCPCS
28
Medicare payment
$362K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 10,499 Internal Medicine providers in CA — top quintile (cohort median 531).
REFERRAL NETWORK

Where William Koonce'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). 26 inbound referrers · 58 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Pacific Diagnostic Laboratories
Clinical Laboratory · Santa Barbara, CA
2821,735
SANTA BARBARA COTTAGE HOSPITAL111395
MONTECITO RETIREMENT ASSOCIATION78416
Unilab Corporation
Clinical Laboratory · West Hills, CA
60164
American Medical Response West
Ambulance Service Provider · Buellton, CA
54183
Pacific Point Laboratories, Inc.
Clinical Laboratory · San Luis Obispo, CA
4183
PINEDA, JOSEPH32119
Stuart Winthrop
Ophthalmology · Santa Barbara, CA
2876
Sanjay Kumar
Cardiology · Santa Barbara, CA
2672
WATSON, THOMAS2597
Steven Zelko
Ophthalmology · Santa Barbara, CA
2560
GOLETA VALLEY COTTAGE HOSPITAL25104
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
Pacific Diagnostic Laboratories
Clinical Laboratory · Santa Barbara, CA
2611,749
SANTA BARBARA COTTAGE HOSPITAL102402
MONTECITO RETIREMENT ASSOCIATION94711
American Medical Response West
Ambulance Service Provider · Buellton, CA
48132
Pacific Point Laboratories, Inc.
Clinical Laboratory · San Luis Obispo, CA
4482
Unilab Corporation
Clinical Laboratory · West Hills, CA
4186
Longs Drug Stores California Llc
Mass Immunizer Roster Biller · Santa Barbara, CA
3680
CLARK, RAMONA3162
PINEDA, JOSEPH30110
Steven Zelko
Ophthalmology · Santa Barbara, CA
3072
GOLETA VALLEY COTTAGE HOSPITAL29120
Stuart Winthrop
Ophthalmology · Santa Barbara, CA
2883
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.