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PROVIDER PROFILE · NPI 1013907203

John WaltersMD

Internal MedicineOxnard, CAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

CCN 050082
Hospital
CCN 050336
Hospital
CCN 055566
Nursing home
CCN 555223
Nursing home
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
189
Unique beneficiaries
—
Total services
320
Distinct HCPCS
5
Medicare payment
$28K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 10,499 Internal Medicine providers in CA — below median (cohort median 531).
PRESCRIBING · PART D · 2024
Total Rx claims
4,480
Beneficiaries
—
Total drug cost
$537K
Distinct drugs
104
Brand share
19.1%
Top prescribed drugs
Atorvastatin Calcium342 claims
Lisinopril205 claims
Amlodipine Besylate182 claims
Levothyroxine Sodium150 claims
Metformin Hcl146 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 John Walters'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). 56 inbound referrers · 109 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
DIGNITY HEALTH1931,006
Unilab Corporation
Clinical Laboratory · West Hills, CA
132568
DIGNITY HEALTH113562
American Medical Response Ambulance Service Inc
Ambulance Service Provider · Moorpark, CA
85395
Marlon Black
Diagnostic Radiology · Santa Barbara, CA
79505
William Deruso
Diagnostic Radiology · Santa Barbara, CA
79323
THEURER, WILLIAM76473
HOSTETLER, THEODORE60462
Bennet Lipper
Pulmonary Disease · Camarillo, CA
57430
Nicholas Hanson
Diagnostic Radiology · Salem, OR
49198
Sean Freyne
Diagnostic Radiology · Fargo, ND
47315
Yumin Qiu
Cardiology · Camarillo, CA
42299
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
DIGNITY HEALTH172654
GREENBERG, DANIEL1351,247
Unilab Corporation
Clinical Laboratory · West Hills, CA
122590
DIGNITY HEALTH103450
THEURER, WILLIAM78481
Marlon Black
Diagnostic Radiology · Santa Barbara, CA
73321
HOSTETLER, THEODORE72860
William Deruso
Diagnostic Radiology · Santa Barbara, CA
71315
American Medical Response Ambulance Service Inc
Ambulance Service Provider · Moorpark, CA
69263
BERRETT, STEVEN63323
Nicholas Hanson
Diagnostic Radiology · Salem, OR
54190
Gold Coast Ambulance Service
Ambulance Service Provider · Oxnard, CA
54269
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.