Varian Medical Systems website screenshot

Varian Medical Systems

Varian Medical Systems is a leading manufacturer of medical devices and software for treating cancer with radiotherapy, radiosurgery, proton therapy, and brachytherapy. Acquired by Siemens Healthineers in 2021, Varian provides the ARIA Oncology Information System (OIS) and developer APIs enabling integration with clinical workflows, EHR systems, and the broader healthcare ecosystem using HL7, DICOM, and FHIR standards.

2 APIs 0 Features
HealthcareOncologyMedical DevicesFHIRRadiation TherapyHealth ITFortune 1000

APIs

ARIA FHIR API

The Varian ARIA FHIR R4 API provides SMART on FHIR access to oncology clinical data from the ARIA Oncology Information System. Supports read and search operations for Patient, C...

ARIA Access API

The legacy ARIA Access API provides SOAP and REST access to core ARIA entities including patients, appointments, prescriptions, treatment plans, orders, and administrative data....

Collections

Pricing Plans

Rate Limits

Varian Medical Systems Rate Limits

1 limits

RATE LIMITS

FinOps

Semantic Vocabularies

Varian Medical Systems Context

15 classes · 20 properties

JSON-LD

API Governance Rules

Varian Medical Systems API Rules

8 rules · 2 errors 5 warnings 1 info

SPECTRAL

JSON Structure

Varian Patient Structure

0 properties

JSON STRUCTURE

Example Payloads

Press

Telix Pharmaceuticals Enters Strategic Collaboration with ...

2026-05-25

Varian Medical Systems Invests in COTA, Inc. to Help Drive ...

2026-05-25

Siemens Healthineers completes acquisition of Varian ...

2026-05-25

Varian Medical Systems

2026-05-25

AI-Enabled Radiation Therapy System & 1,000th Patient

2026-05-25

Resources

🔗
LinkedIn
LinkedIn
🌐
Portal
Portal
🔗
Documentation
Documentation
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CapabilityStatement
CapabilityStatement
🔗
Documentation
Documentation
🔗
Product
Product
🔗
Website
Website
🔗
Website
Website
🔗
Standards
Standards
🔗
Standards
Standards

Sources

Raw ↑
opencollection: 1.0.0
info:
  name: Varian ARIA FHIR API
  version: R4-6.0.101
request:
  auth:
    type: oauth2
    flow: authorization_code
    authorizationUrl: https://varian-smart.dynamicfhir.com/core/connect/authorize
    accessTokenUrl: https://varian-smart.dynamicfhir.com/core/connect/token
    credentials:
      clientId: '{{clientId}}'
      clientSecret: '{{clientSecret}}'
items:
- info:
    name: Metadata
    type: folder
  items:
  - info:
      name: Get Capability Statement
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/metadata
    docs: Returns the FHIR CapabilityStatement describing all supported resources, operations, and search parameters for this
      ARIA FHIR server.
- info:
    name: Patient
    type: folder
  items:
  - info:
      name: Search Patients
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/Patient
      params:
      - name: _id
        value: ''
        type: query
        description: Patient FHIR resource ID
      - name: identifier
        value: ''
        type: query
        description: Patient identifier (e.g., MRN)
      - name: family
        value: ''
        type: query
        description: Patient family (last) name
      - name: given
        value: ''
        type: query
        description: Patient given (first) name
      - name: birthdate
        value: ''
        type: query
        description: Patient birth date (YYYY-MM-DD)
      - name: _count
        value: ''
        type: query
        description: Maximum number of results to return
    docs: Search for patients in the ARIA OIS by name, identifier, birth date, or other criteria.
  - info:
      name: Get Patient
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/Patient/:id
      params:
      - name: id
        value: ''
        type: path
        description: FHIR Patient resource ID
    docs: Retrieve a specific patient by their FHIR resource ID.
- info:
    name: Condition
    type: folder
  items:
  - info:
      name: Search Conditions
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/Condition
      params:
      - name: patient
        value: ''
        type: query
        description: Patient reference (e.g., Patient/12345678)
      - name: code
        value: ''
        type: query
        description: Condition code (ICD-10, SNOMED CT)
      - name: category
        value: ''
        type: query
        description: Condition category
      - name: _count
        value: ''
        type: query
        description: Maximum number of results
    docs: Search for clinical conditions (diagnoses) associated with oncology patients. Returns ICD-10 coded conditions including
      cancer diagnoses.
  - info:
      name: Get Condition
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/Condition/:id
      params:
      - name: id
        value: ''
        type: path
    docs: Retrieve a specific condition resource by ID.
- info:
    name: Procedure
    type: folder
  items:
  - info:
      name: Search Procedures
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/Procedure
      params:
      - name: patient
        value: ''
        type: query
        description: Patient reference
      - name: code
        value: ''
        type: query
        description: Procedure code (CPT, SNOMED CT)
      - name: date
        value: ''
        type: query
        description: Procedure date (YYYY-MM-DD or date range)
      - name: status
        value: ''
        type: query
        description: Procedure status
      - name: _count
        value: ''
        type: query
    docs: Search for procedures performed on oncology patients, including radiation therapy treatments, surgical procedures,
      and other clinical interventions.
  - info:
      name: Get Procedure
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/Procedure/:id
      params:
      - name: id
        value: ''
        type: path
    docs: Retrieve a specific procedure by ID.
- info:
    name: Observation
    type: folder
  items:
  - info:
      name: Search Observations
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/Observation
      params:
      - name: patient
        value: ''
        type: query
        description: Patient reference
      - name: code
        value: ''
        type: query
        description: Observation LOINC or SNOMED code
      - name: date
        value: ''
        type: query
        description: Observation date
      - name: category
        value: ''
        type: query
        description: Observation category (laboratory, vital-signs, etc.)
      - name: _count
        value: ''
        type: query
    docs: Search for clinical observations including lab results, vital signs, and treatment-related measurements for oncology
      patients.
  - info:
      name: Get Observation
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/Observation/:id
      params:
      - name: id
        value: ''
        type: path
    docs: Retrieve a specific observation by ID.
- info:
    name: DiagnosticReport
    type: folder
  items:
  - info:
      name: Search Diagnostic Reports
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/DiagnosticReport
      params:
      - name: patient
        value: ''
        type: query
        description: Patient reference
      - name: code
        value: ''
        type: query
        description: Report type code
      - name: date
        value: ''
        type: query
        description: Report date
      - name: status
        value: ''
        type: query
        description: Report status
      - name: _count
        value: ''
        type: query
    docs: Search for diagnostic reports associated with oncology patients, including pathology reports, imaging reports, and
      treatment summaries.
  - info:
      name: Get Diagnostic Report
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/DiagnosticReport/:id
      params:
      - name: id
        value: ''
        type: path
    docs: Retrieve a specific diagnostic report by ID.
- info:
    name: CarePlan
    type: folder
  items:
  - info:
      name: Search Care Plans
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/CarePlan
      params:
      - name: patient
        value: ''
        type: query
        description: Patient reference
      - name: status
        value: ''
        type: query
        description: Care plan status (active, completed, etc.)
      - name: _count
        value: ''
        type: query
    docs: Search for care plans for oncology patients, including radiation therapy treatment plans and overall cancer care
      plans.
- info:
    name: MedicationRequest
    type: folder
  items:
  - info:
      name: Search Medication Requests
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/MedicationRequest
      params:
      - name: patient
        value: ''
        type: query
        description: Patient reference
      - name: status
        value: ''
        type: query
        description: Medication request status
      - name: _count
        value: ''
        type: query
    docs: Search for medication requests (prescriptions) for oncology patients including chemotherapy orders and supportive
      care medications.
- info:
    name: AllergyIntolerance
    type: folder
  items:
  - info:
      name: Search Allergy Intolerances
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/AllergyIntolerance
      params:
      - name: patient
        value: ''
        type: query
        description: Patient reference
      - name: _count
        value: ''
        type: query
    docs: Search for allergy and intolerance records for oncology patients.
- info:
    name: DocumentReference
    type: folder
  items:
  - info:
      name: Search Document References
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/DocumentReference
      params:
      - name: patient
        value: ''
        type: query
        description: Patient reference
      - name: type
        value: ''
        type: query
        description: Document type code (LOINC)
      - name: _count
        value: ''
        type: query
    docs: Search for clinical document references including treatment summaries, consent forms, and clinical notes for oncology
      patients.
- info:
    name: Goal
    type: folder
  items:
  - info:
      name: Search Goals
      type: http
    http:
      method: GET
      url: https://varian.dynamicfhir.com/fhir/varian/basepractice/r4/Goal
      params:
      - name: patient
        value: ''
        type: query
        description: Patient reference
      - name: lifecycle-status
        value: ''
        type: query
        description: Goal lifecycle status
      - name: _count
        value: ''
        type: query
    docs: Search for treatment goals for oncology patients.
bundled: true