Query help - possibly RANK() over partition and Pivot (maybe not)

This is just a sample and is not the actual table and data. The table cannot be changed.

I need to select all patients whose latest CareType = ‘Attending’ where the DrID = 1372 (Daffy Duck). The latest is determined by the VisitDate. The DrID, Doctor, PatientID, and CareType are the columns selected. I also need to select the DrID as PrimaryID and Doctor as PrimaryDoctor for the latest CareType = ‘Primary Service Coordinator’ when it exists.

Table name – Mess

PK – MessID

Sample data:

MessID	DrID	Doctor	PatientID	CareType	VisitDate
5822	1673	Sylvester	400	Care Provider	12/15/2013
6082	1146	Tweety Bird	400	Primary Service Coordinator	12/14/2013
7108	1597	Bugs Bunny	400	Residential Provider	12/1/2013
8095	1372	Daffy Duck	400	Attending	11/25/2013
9290	1456	Yosemite Sam	400	Care Provider	11/10/2013
1	1086	Elmer Fudd	500	Licensed Professional	12/15/2013
567	1557	Porky Pig	500	Primary Service Coordinator	12/10/2013
595	1607	Foghorn Leghorn	500	Case Manager	12/9/2013
4911	1012	Wile E Coyote	500	Licensed Professional	12/5/2013
7453	1148	Roadrunner	500	Primary Service Coordinator	12/5/2013
10587	1372	Daffy Duck,	500	Attending	11/20/2013
10918	1048	Speedy Gonzales	500	Nurse	11/15/2013
12360	1744	Young, Robert	500	Attending	11/12/2013
10587	1372	Daffy Duck,	600	Attending	11/20/2013
17417	1597	Bugs Bunny	600	Attending	11/10/2013
17628	1456	Yosemite Sam	600	Care Provider	11/4/2013

Results:

DrID	Doctor	PatientID	CareType	PrimaryID	PrimaryDoctor
1372	Daffy Duck	400	Attending	1146	Tweety Bird
1372	Daffy Duck,	500	Attending	1557	Porky Pig
1372	Daffy Duck,	600	Attending

The following will get the results for patients whose latest ‘Attending’ is DrID = 1372.

Select * from
(Select M.DrID, M.Doctor, M.PatientID, M.CareType
RANK() over (partition by M.PatientID order by M.VisitDate desc) as latest
from Mess  M
Where M.DrID = ‘1372’
And M.CareType = ‘Attending’) text
Where latest = 1

I have some ideas on how to build on that query but would like to see what others suggest. Feel free to fix or completely scrap the above query.

Thanks

Additional info: There will be patients in the table that will not have DrID = '1372' with CareType = 'Attending'. I should have included an entry for those cases in my sample. Those patients will not be part of the results.