Two SQL queries that need to be incorporated into one (possible Union)

SELECT  * from (select o2.acttext, o2.obsvalue, p.person_nbr, p.last_name, p.first_name, pe.enc_id, pe.person_id,
ROW_NUMBER() OVER (PARTITION BY p.person_nbr ORDER BY o2.completeddate DESC)rowno, o2.completeddate
FROM order_ o2	
	  inner join person p with(nolock) on o2.person_id = p.person_id 
	  INNER JOIN patient_encounter AS pe with(nolock)  ON p.person_id = pe.person_id
	  inner join patient_diagnosis pd with(nolock) on pe.enc_id = pd.enc_id
	  INNER JOIN appointments AS a	 with(nolock)  ON pe.enc_id	= a.enc_id
	  WHERE o2.obsvalue IS NOT NULL 
     and (o2.completeddate >= '20150101'
                  AND o2.completeddate < '20160101')
	 and o2.acttext in ('GLYCATED HEMOGLOBIN TEST', 'Hemoglobin A1c')
	  and (pd.diagnosis_code_id  like '250%' or pd.diagnosis_code_id like '648.0%' 
	or pd.diagnosis_code_id  like '357.2' or pd.diagnosis_code_id like '362.0[0-7]' or pd.diagnosis_code_id  like '366.41' or pd.diagnosis_code_id like 'E1[0-3].%' 
	or pd.diagnosis_code_id  like 'O24.[0-4]0%' or pd.diagnosis_code_id like 'O24.[4-9][2-9]') 
	 and pe.person_id in (select pe.person_id from patient_encounter pe 
	INNER JOIN appointments AS a	 with(nolock)  ON pe.enc_id	= a.enc_id
	where  (pe.enc_timestamp >= '20151001'
                  AND pe.enc_timestamp < '20160101'
				  and 	a.appt_kept_ind = 'Y' and a.resched_ind = 'N'))) inofficea1c
	where rowno = 1

	SELECT  * from (select p.last_name as LastName, p.first_name as FirstName, p.sex as Sex, p.language as Language, p.Ethnicity as Ethnicity, 
p.Race as Race, p.date_of_birth as DOB, res.obs_date_time as A1cDate, res.result_desc as ResultDescription, res.observ_value as A1cResultValue, res.obs_id as OBXObsID,
ROW_NUMBER() OVER (PARTITION BY p.person_nbr ORDER BY  res.obs_date_time DESC)rowno
FROM lab_results_obx res	  
	  inner join person p with(nolock) on res.person_id = p.person_id 
	  INNER JOIN patient_encounter AS pe with(nolock)  ON p.person_id = pe.person_id
	  inner join patient_diagnosis pd with(nolock) on pe.enc_id = pd.enc_id
	  INNER JOIN appointments AS a	 with(nolock)  ON pe.enc_id	= a.enc_id
	  WHERE res.observ_value IS NOT NULL 
     and (res.obs_date_time >= '20150101'
                  AND res.obs_date_time < '20160101')
	 and (res.obs_id like '%HEMOGLOBIN A1C%'  or res.obs_id like '%HBG. A1C%' or res.obs_id like '%HBG.AIC%' or res.obs_id like '%HEMOGLOBIN A1c%')
	  and (pd.diagnosis_code_id  like '250%' or pd.diagnosis_code_id like '648.0%' 
	or pd.diagnosis_code_id  like '357.2' or pd.diagnosis_code_id like '362.0[0-7]' or pd.diagnosis_code_id  like '366.41' or pd.diagnosis_code_id like 'E1[0-3].%' 
	or pd.diagnosis_code_id  like 'O24.[0-4]0%' or pd.diagnosis_code_id like 'O24.[4-9][2-9]') 
	 and pe.person_id in (select pe.person_id from patient_encounter pe 
	INNER JOIN appointments AS a	 with(nolock)  ON pe.enc_id	= a.enc_id
	where  (pe.enc_timestamp >= '20151001'
                  AND pe.enc_timestamp < '20160101'
				  and 	a.appt_kept_ind = 'Y' and a.resched_ind = 'N'))) outsidelabA1c
	where rowno = 1