nativeMongo.js

  mongoose.models.Users.collection.findOne({_id: ObjectId(req.user.middleName)}, function(err, loggedin) {
    mongoose.models.Users.find({
      location: { $near: { $geometry: loggedin.location } },
    }, function(err, users) => {
        return res.json(users);
      });
    });
  })

userDataMongoShell.json

{
	"_id" : ObjectId("571ad2871f34572a11cc001f"),
	"createdAt" : ISODate("2016-04-23T01:40:23.718Z"),
	"updatedAt" : ISODate("2016-04-23T01:46:53.932Z"),
	"email" : "[email protected]",
	"address" : "address",
	"address2" : "address2",
	"city" : "City",
	"state" : "CA",
	"zip" : "91709",
	"phone" : "111111111",
	"age" : 27,
	"how_many" : 2,
	"child_gender" : "BOTH",
	"travel_range" : 10,
	"biography" : "brief bio",
	"recent_babysitting_experience" : "recent experience",
	"other_related_work" : "child related work",
	"favorite_activities" : "favorite activites",
	"certifications" : "certifications",
	"medical_conditions" : "medical conditions",
	"cooking_level" : "comfort level on cooking",
	"education" : "Some College",
	"marital_status" : "Married",
	"child_age_ranges" : " age range of kids",
	"crime_description" : "crime convicted",
	"sitter" : true,
	"gender" : "M",
	"has_pets" : true,
	"special_needs" : true,
	"adhd" : true,
	"allergies" : true,
	"cook" : true,
	"autism" : true,
	"employed" : true,
	"have_children" : true,
	"criminal" : true,
	"driving_infractions" : true,
	"transportation" : true,
	"cleaning" : true,
	"bathing_bedtime" : true,
	"time_out" : true,
	"report_id" : "b71331f8-2bfd-4d97-9dad-3671d28b8cec",
	"profile_change_approved" : false,
	"report_status" : [ ],
	"transactions" : [ ],
	"cards" : [ ],
	"reviews" : [ ],
	"unavailable" : [
		ISODate("2016-04-21T00:00:00Z"),
		ISODate("2016-04-20T00:00:00Z")
	],
	"favorite_sitters" : [ ],
	"active" : false,
	"pets" : [ ],
	"location" : {
		"type" : "Point",
		"coordinates" : [
			-122.4797394,
			37.721513
		]
	},
	"age_groups" : [
		"4-7",
		"8-11",
		"12+"
	],
	"__v" : 2,
	"href" : "https://api.stormpath.com/v1/accounts/2iz8xGpIGyd2JINQ7MoFZA",
	"last_approved_time" : ISODate("2016-04-23T01:40:46.803Z")
}