Top 10 Medical Space Users

10. Dignity Health

HQ: San Francisco

No. of MOB properties: 146

Total property assets at Q4 2013: $5.747 billion

Buildings and improvements total worth: $4.56 billion

Land and improvements total worth: $330 million

Construction in progress: $850.5 million

9. Partners Healthcare System Inc.

HQ: Charlestown, Mass.

No. of MOBs: N/A

Total property assets at Q4 2013: $6.11 billion

Buildings and improvements total worth: $5.3 billion

Land and improvements total worth: $172 million

Construction in progress: $591 million

8.Community Health Systems

HQ: Franklin, Tenn.

No. of MOB properties: 542

Total property assets at Q4 2013: $6.9 billion

Buildings and improvements total worth: $6.3 billion

Land and improvements total worth: $628 million

Construction in progress: N/A

7. Providence Health System

HQ: Seattle, Wash.

No. of MOB properties: 167

Total property assets at Q4 2013: $7.07 billion

Buildings and improvements total worth: $5.9 billion

Land and improvements total worth: $586 million

Construction in progress: $552 million

6. Tenet Healthcare Corp.

HQ: Dallas

No. of MOB properties: 280

Total property assets at Q4 2013: $7.55 billion

Buildings and improvements total worth: $6.3 billion

Land and improvements total worth: $589 million

Construction in progress: $593 million

5. Sutter Health

HQ: Sacramento, Calif.

No. of MOB properties: 190

Total property assets at Q4 2013: $8 billion

Buildings and improvements total worth: $5.2 billion

Land and improvements total worth: $769 million

Construction in progress: $1.9 billion

4. Catholic Health Initiatives

HQ: Denver, Colo.

No. of MOBs: 449

Total property assets at Q4 2013: $8.18 billion

Buildings and improvements total worth: $6.3 billion

Land and improvements total worth: $596 million

Construction in progress:$1.18 billion

3. Hospital Corp. of America (HCA)

HQ: Nashville, Tenn.

No. of MOB properties: 824

Total property assets at Q4 2013: $13.5 billion

Buildings and improvements total worth: $11.2 billion

Land and improvements total worth: $1.48 billion

Construction in progress: $856 million

2. Ascension Health Alliance

HQ: St. Louis, Mo.

No. of MOB properties: 426

Total property assets at Q4 2013: $16.1 billion

Buildings and improvements total worth: $14.7 billion

Land and improvements total worth: $870 million

Construction in progress: $487 million

1. Kaiser Foundation Hospitals

HQ: Oakland, Calif.

No. of MOB properties: 286

Total property assets at Q4 2013: $31.6 billion

Buildings and improvements total worth: $26.8 billion

Land and improvements total worth: $1.7 billion

Construction in progress: $3 billion