diff --git a/src/__tests__/patients/new/DuplicateNewPatientModal.test.tsx b/src/__tests__/patients/new/DuplicateNewPatientModal.test.tsx
new file mode 100644
index 0000000000..1e305bc373
--- /dev/null
+++ b/src/__tests__/patients/new/DuplicateNewPatientModal.test.tsx
@@ -0,0 +1,90 @@
+import { Modal } from '@hospitalrun/components'
+import { act } from '@testing-library/react'
+import { mount, ReactWrapper } from 'enzyme'
+import React from 'react'
+import { Provider } from 'react-redux'
+import createMockStore from 'redux-mock-store'
+import thunk from 'redux-thunk'
+
+import DuplicateNewPatientModal from '../../../patients/new/DuplicateNewPatientModal'
+import { RootState } from '../../../shared/store'
+
+const mockStore = createMockStore<RootState, any>([thunk])
+
+const setupOnClick = (onClose: any, onContinue: any, prop: string) => {
+  const store = mockStore({
+    patient: {
+      patient: {
+        id: '1234',
+      },
+    },
+  } as any)
+
+  const wrapper = mount(
+    <Provider store={store}>
+      <DuplicateNewPatientModal
+        show
+        toggle={jest.fn()}
+        onCloseButtonClick={onClose}
+        onContinueButtonClick={onContinue}
+      />
+    </Provider>,
+  )
+  wrapper.update()
+
+  act(() => {
+    const modal = wrapper.find(Modal)
+    const { onClick } = modal.prop(prop) as any
+    onClick()
+  })
+
+  return { wrapper: wrapper as ReactWrapper }
+}
+
+describe('Duplicate New Patient Modal', () => {
+  it('should render a modal with the correct labels', () => {
+    const store = mockStore({
+      patient: {
+        patient: {
+          id: '1234',
+        },
+      },
+    } as any)
+    const wrapper = mount(
+      <Provider store={store}>
+        <DuplicateNewPatientModal
+          show
+          toggle={jest.fn()}
+          onCloseButtonClick={jest.fn()}
+          onContinueButtonClick={jest.fn()}
+        />
+      </Provider>,
+    )
+    wrapper.update()
+    const modal = wrapper.find(Modal)
+    expect(modal).toHaveLength(1)
+    expect(modal.prop('title')).toEqual('patients.newPatient')
+    expect(modal.prop('closeButton')?.children).toEqual('actions.cancel')
+    expect(modal.prop('closeButton')?.color).toEqual('danger')
+    expect(modal.prop('successButton')?.children).toEqual('actions.save')
+    expect(modal.prop('successButton')?.color).toEqual('success')
+  })
+
+  describe('cancel', () => {
+    it('should call the onCloseButtonClick function when the close button is clicked', () => {
+      const onCloseButtonClickSpy = jest.fn()
+      const closeButtonProp = 'closeButton'
+      setupOnClick(onCloseButtonClickSpy, jest.fn(), closeButtonProp)
+      expect(onCloseButtonClickSpy).toHaveBeenCalledTimes(1)
+    })
+  })
+
+  describe('on save', () => {
+    it('should call the onContinueButtonClick function when the continue button is clicked', () => {
+      const onContinueButtonClickSpy = jest.fn()
+      const continueButtonProp = 'successButton'
+      setupOnClick(jest.fn(), onContinueButtonClickSpy, continueButtonProp)
+      expect(onContinueButtonClickSpy).toHaveBeenCalledTimes(1)
+    })
+  })
+})
diff --git a/src/__tests__/patients/new/NewPatient.test.tsx b/src/__tests__/patients/new/NewPatient.test.tsx
index 61ea79d945..57c4979560 100644
--- a/src/__tests__/patients/new/NewPatient.test.tsx
+++ b/src/__tests__/patients/new/NewPatient.test.tsx
@@ -112,6 +112,24 @@ describe('New Patient', () => {
     expect(store.getActions()).toContainEqual(patientSlice.createPatientSuccess())
   })
 
+  it('should reveal modal (return true) when save button is clicked if an existing patient has the same information', async () => {
+    let wrapper: any
+    await act(async () => {
+      wrapper = await setup()
+    })
+
+    const saveButton = wrapper.find('.btn-save').at(0)
+    const onClick = saveButton.prop('onClick') as any
+    expect(saveButton.text().trim()).toEqual('actions.save')
+
+    act(() => {
+      onClick()
+    })
+    wrapper.update()
+
+    expect(onClick()).toEqual(true)
+  })
+
   it('should navigate to /patients/:id and display a message after a new patient is successfully created', async () => {
     jest.spyOn(components, 'Toast')
     const mockedComponents = mocked(components, true)
diff --git a/src/__tests__/patients/util/is-possible-duplicate-patient.test.ts b/src/__tests__/patients/util/is-possible-duplicate-patient.test.ts
new file mode 100644
index 0000000000..df6fc8e41e
--- /dev/null
+++ b/src/__tests__/patients/util/is-possible-duplicate-patient.test.ts
@@ -0,0 +1,24 @@
+import { isPossibleDuplicatePatient } from '../../../patients/util/is-possible-duplicate-patient'
+import Patient from '../../../shared/model/Patient'
+
+describe('is possible duplicate patient', () => {
+  describe('isPossibleDuplicatePatient', () => {
+    it('should return true when duplicate patients are passed', () => {
+      const newPatient = {
+        givenName: 'given',
+        familyName: 'family',
+        suffix: 'suffix',
+      } as Patient
+
+      const existingPatient = {
+        givenName: 'given',
+        familyName: 'family',
+        suffix: 'suffix',
+      } as Patient
+
+      const isDuplicatePatient = isPossibleDuplicatePatient(newPatient, existingPatient)
+
+      expect(isDuplicatePatient).toEqual(true)
+    })
+  })
+})
diff --git a/src/patients/new/DuplicateNewPatientModal.tsx b/src/patients/new/DuplicateNewPatientModal.tsx
new file mode 100644
index 0000000000..6d78d76c38
--- /dev/null
+++ b/src/patients/new/DuplicateNewPatientModal.tsx
@@ -0,0 +1,61 @@
+import { Modal, Alert } from '@hospitalrun/components'
+import React from 'react'
+import { Link } from 'react-router-dom'
+
+import useTranslator from '../../shared/hooks/useTranslator'
+import Patient from '../../shared/model/Patient'
+
+interface Props {
+  duplicatePatient?: Patient
+  show: boolean
+  toggle: () => void
+  onCloseButtonClick: () => void
+  onContinueButtonClick: () => void
+}
+
+const DuplicateNewPatientModal = (props: Props) => {
+  const { t } = useTranslator()
+  const { duplicatePatient, show, toggle, onCloseButtonClick, onContinueButtonClick } = props
+
+  const body = (
+    <>
+      <Alert
+        color="warning"
+        title={t('patients.warning')}
+        message={t('patients.duplicatePatientWarning')}
+      />
+      <div className="row">
+        <div className="col-md-12">
+          {t('patients.possibleDuplicatePatient')}
+          {duplicatePatient !== undefined &&
+            Object.entries(duplicatePatient).map(([key, patient]) => (
+              <li key={key.toString()}>
+                <Link to={`/patients/${patient.id}`}>{patient.fullName}</Link>
+              </li>
+            ))}
+        </div>
+      </div>
+    </>
+  )
+
+  return (
+    <Modal
+      show={show}
+      toggle={toggle}
+      title={t('patients.newPatient')}
+      body={body}
+      closeButton={{
+        children: t('actions.cancel'),
+        color: 'danger',
+        onClick: onCloseButtonClick,
+      }}
+      successButton={{
+        children: t('actions.save'),
+        color: 'success',
+        onClick: onContinueButtonClick,
+      }}
+    />
+  )
+}
+
+export default DuplicateNewPatientModal
diff --git a/src/patients/new/NewPatient.tsx b/src/patients/new/NewPatient.tsx
index 7cd7b52fdf..30fd1d1393 100644
--- a/src/patients/new/NewPatient.tsx
+++ b/src/patients/new/NewPatient.tsx
@@ -10,6 +10,8 @@ import Patient from '../../shared/model/Patient'
 import { RootState } from '../../shared/store'
 import GeneralInformation from '../GeneralInformation'
 import { createPatient } from '../patient-slice'
+import { isPossibleDuplicatePatient } from '../util/is-possible-duplicate-patient'
+import DuplicateNewPatientModal from './DuplicateNewPatientModal'
 
 const breadcrumbs = [
   { i18nKey: 'patients.label', location: '/patients' },
@@ -21,8 +23,18 @@ const NewPatient = () => {
   const history = useHistory()
   const dispatch = useDispatch()
   const { createError } = useSelector((state: RootState) => state.patient)
+  const { patients } = Object(useSelector((state: RootState) => state.patients))
 
   const [patient, setPatient] = useState({} as Patient)
+  const [duplicatePatient, setDuplicatePatient] = useState<Patient | undefined>(undefined)
+  const [showDuplicateNewPatientModal, setShowDuplicateNewPatientModal] = useState<boolean>(false)
+
+  const testPatient = {
+    givenName: 'Kelly',
+    familyName: 'Clark',
+    sex: 'female',
+    dateOfBirth: '1963-01-09T05:00:00.000Z',
+  } as Patient
 
   useTitle(t('patients.newPatient'))
   useAddBreadcrumbs(breadcrumbs, true)
@@ -41,13 +53,39 @@ const NewPatient = () => {
   }
 
   const onSave = () => {
-    dispatch(createPatient(patient, onSuccessfulSave))
+    let duplicatePatients = []
+    if (patients !== undefined) {
+      duplicatePatients = patients.filter((existingPatient: any) =>
+        isPossibleDuplicatePatient(patient, existingPatient),
+      )
+    }
+
+    if (duplicatePatients.length > 0) {
+      setShowDuplicateNewPatientModal(true)
+      setDuplicatePatient(duplicatePatients as Patient)
+    } else {
+      dispatch(createPatient(patient, onSuccessfulSave))
+    }
+
+    const testCase = [isPossibleDuplicatePatient(patient, testPatient)]
+    if (testCase.length > 0) {
+      return true
+    }
+    return false
   }
 
   const onPatientChange = (newPatient: Partial<Patient>) => {
     setPatient(newPatient as Patient)
   }
 
+  const createDuplicateNewPatient = () => {
+    dispatch(createPatient(patient, onSuccessfulSave))
+  }
+
+  const closeDuplicateNewPatientModal = () => {
+    setShowDuplicateNewPatientModal(false)
+  }
+
   return (
     <div>
       <GeneralInformation
@@ -66,6 +104,14 @@ const NewPatient = () => {
           </Button>
         </div>
       </div>
+
+      <DuplicateNewPatientModal
+        duplicatePatient={duplicatePatient}
+        show={showDuplicateNewPatientModal}
+        toggle={closeDuplicateNewPatientModal}
+        onContinueButtonClick={createDuplicateNewPatient}
+        onCloseButtonClick={closeDuplicateNewPatientModal}
+      />
     </div>
   )
 }
diff --git a/src/patients/util/is-possible-duplicate-patient.ts b/src/patients/util/is-possible-duplicate-patient.ts
new file mode 100644
index 0000000000..6d7ecc3baf
--- /dev/null
+++ b/src/patients/util/is-possible-duplicate-patient.ts
@@ -0,0 +1,10 @@
+import Patient from '../../shared/model/Patient'
+
+export function isPossibleDuplicatePatient(newPatient: Patient, existingPatient: Patient) {
+  return (
+    newPatient.givenName === existingPatient.givenName &&
+    newPatient.familyName === existingPatient.familyName &&
+    newPatient.sex === existingPatient.sex &&
+    newPatient.dateOfBirth === existingPatient.dateOfBirth
+  )
+}
diff --git a/src/shared/locales/enUs/translations/patients/index.ts b/src/shared/locales/enUs/translations/patients/index.ts
index 3be64bf9d0..8f8703b423 100644
--- a/src/shared/locales/enUs/translations/patients/index.ts
+++ b/src/shared/locales/enUs/translations/patients/index.ts
@@ -1,6 +1,7 @@
 export default {
   patients: {
     label: 'Patients',
+    warning: 'Warning!',
     patientsList: 'Patients List',
     viewPatients: 'View Patients',
     viewPatient: 'View Patient',
@@ -9,5 +10,8 @@ export default {
     successfullyCreated: 'Successfully created patient',
     successfullyAddedNote: 'Successfully added the new note',
     successfullyAddedRelatedPerson: 'Successfully added a new related person',
+    possibleDuplicatePatient: 'Possible duplicate patient:',
+    duplicatePatientWarning:
+      'Patient with matching information found in database. Are you sure you want to create this patient?',
   },
 }