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 1215966999

Koosha MortazaviM.D.

PRACTICEVISTA DEL MAR MEDICAL GROUP, INCSee all providers at this practice →
NephrologyOxnard, CAI
CROSS-REFERENCE

Related data on other Healthparse brands

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

Hospital & Facility Affiliations (9)

CCN 052656
Dialysis facility
CCN 052668
Dialysis facility
CCN 052762
Dialysis facility
CCN 052860
Dialysis facility
CCN 752606
Dialysis facility
CCN 050082
Hospital
CCN 050159
Hospital
CCN 050394
Hospital
CCN 050625
Hospital
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
937
Unique beneficiaries
—
Total services
2,288
Distinct HCPCS
11
Medicare payment
$297K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 985 Nephrology providers in CA — above median (cohort median 1,482).
PRESCRIBING · PART D · 2024
Total Rx claims
1,978
Beneficiaries
—
Total drug cost
$219K
Distinct drugs
36
Brand share
12.0%
Top prescribed drugs
Amlodipine Besylate263 claims
Losartan Potassium193 claims
Furosemide190 claims
Hydralazine Hcl168 claims
Dapagliflozin Propanediol107 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Koosha Mortazavi'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). 72 inbound referrers · 138 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Unilab Corporation
Clinical Laboratory · West Hills, CA
2621,393
DIGNITY HEALTH180838
COMMUNITY MEMORIAL HEALTH SYSTEM133605
William Deruso
Diagnostic Radiology · Santa Barbara, CA
92513
DIGNITY HEALTH91520
Steven Ledesma
Nephrology · Oxnard, CA
78549
Nicholas Bednarski
Internal Medicine · Oxnard, CA
74713
THEURER, WILLIAM73500
Sean Freyne
Diagnostic Radiology · Fargo, ND
72485
Nicholas Hanson
Diagnostic Radiology · Salem, OR
68276
Marlon Black
Diagnostic Radiology · Santa Barbara, CA
66426
American Medical Response Ambulance Service Inc
Ambulance Service Provider · Moorpark, CA
61243
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
Unilab Corporation
Clinical Laboratory · West Hills, CA
197998
DIGNITY HEALTH114415
COMMUNITY MEMORIAL HEALTH SYSTEM92454
Gold Coast Ambulance Service
Ambulance Service Provider · Oxnard, CA
85317
Tane Liu
Nephrology · Oxnard, CA
84867
Steven Ledesma
Nephrology · Oxnard, CA
80618
Rajendra Niraula
Nephrology · Oxnard, CA
73567
Ali Dana
Nephrology · Oxnard, CA
72612
Nicholas Bednarski
Internal Medicine · Oxnard, CA
69697
William Deruso
Diagnostic Radiology · Santa Barbara, CA
67320
THEURER, WILLIAM61278
BERRETT, STEVEN58284
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.