private Provider getProvider(PV1 pv1) throws HL7Exception {
        XCN hl7Provider = pv1.getAttendingDoctor(0);
        Provider provider = null;
        String id = hl7Provider.getIDNumber().getValue();
        String assignAuth = hl7Provider.getAssigningAuthority().getUniversalID().getValue();
        String type = hl7Provider.getAssigningAuthority().getUniversalIDType().getValue();
        String errorMessage = "";
        if (StringUtils.hasText(id)) {
            String specificErrorMsg = "";
            if (OpenmrsUtil.nullSafeEquals("L", type)) {
                if (HL7Constants.PROVIDER_ASSIGNING_AUTH_PROV_ID.equalsIgnoreCase(assignAuth)) {
                    try {
                        provider = Context.getProviderService().getProvider(Integer.valueOf(id));
                    }
                    catch (NumberFormatException e) {
                        // ignore
                    }
                    specificErrorMsg = "with provider Id";
                } else if (HL7Constants.PROVIDER_ASSIGNING_AUTH_IDENTIFIER.equalsIgnoreCase(assignAuth)) {
                    provider = Context.getProviderService().getProviderByIdentifier(id);
                    specificErrorMsg = "with provider identifier";
                } else if (HL7Constants.PROVIDER_ASSIGNING_AUTH_PROV_UUID.equalsIgnoreCase(assignAuth)) {
                    provider = Context.getProviderService().getProviderByUuid(id);
                    specificErrorMsg = "with provider uuid";
                }
            } else {
                try {
                    Person person = Context.getPersonService().getPerson(Integer.valueOf(id));
                    Collection<Provider> providers = Context.getProviderService().getProvidersByPerson(person);
                    if (!providers.isEmpty())
                        provider = providers.iterator().next();
                }
                catch (NumberFormatException e) {
                    // ignore
                }
                specificErrorMsg = "associated to a person with person id";
            }

            errorMessage = "Could not resolve provider " + specificErrorMsg + ":" + id;
        } else {
            errorMessage = "No unique identifier was found for the provider";
        }

        if (provider == null) {
            throw new HL7Exception(errorMessage);
        }

        return provider;
}