How to retrive data from sqlite using content provider with more than one parameter

I'm working on Android app that let the user add some data and then do querys on the data, Example : User can add some doctors informations like (Name, phone, city etc...) then the user can query the doctors database to retive the doctors in a spacific parameters for exmaple city.

I have this code :

    @Override
public Cursor query(Uri uri, String[] projection, String selection,
                    String[] selectionArgs, String sortOrder) {

    SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
    qb.setTables(DOC_TABLE_NAME);

    switch (uriMatcher.match(uri)) {
        case DOC:
            qb.setProjectionMap(DOC_PROJECTION_MAP);
            break;
        case DOC_ID:
            qb.appendWhere( _ID + "=" + uri.getPathSegments().get(1));
            break;
        default:
            throw new IllegalArgumentException("Unknown URI " + uri);
    }
    if (sortOrder == null || sortOrder == ""){

        sortOrder = _ID;
    }
    Cursor c = qb.query(db, projection, selection, selectionArgs,
            null, null, sortOrder);

    c.setNotificationUri(getContext().getContentResolver(), uri);

    return c;
}

What should i add to the cases the retiver a doctors on more than one parameter example : id, name, city. should i add this :

            case DOC_ID_NAME_CITY:
            qb.appendWhere( _ID + "=" + uri.getPathSegments().get(1));
            qb.appendWhere( Name + "=" + uri.getPathSegments().get(2));
            qb.appendWhere( City + "=" + uri.getPathSegments().get(3));
            break;

Also how to call it ?

thanks :)