Provider of Services File, 1999, 2000, 2001
Study Number	A17_99-A17_01
Background of Dataset
Purpose of the Data Set	Contains information collected by CMS to determine whether Medicare and Medicaid institutional providers are capable of providing acceptable care.
Criteria(s) for Inclusion/Exclusion	Includes institutional Medicare and Medicaid providers. Excludes transations (data submissions) to the Online Survey Certification and Reporting System (OSCAR) that had errors. Provider types included are hospitals, skilled nursing facilities, nursing facilities, home health agencies, laboratories, portable x-rays, physical therapy/speech pathology, end stage renal disease, intermediate care facility for the mentally retarded, rural health clinics, comprehensive outpatient rehabilitation, ambulatory surgical centers, hospices, organ procurement, community mental health centers, screening mammography and federally qualified health centers.
Age Range Included	N/A
Method(s) of Data Gathering	Surveys and CMS forms
Sampling Frame/Design	N/A
Limitation(s) of Study	N/A
Year(s) Available	1999, 2000, 2001
Number of Observations	259,638 clinical laboratories, 99,429 other providers in 2001
Unit of Observation	Institutional provider, e.g., hospitals, nursing homes, clinical laboratories, ambulatory surgical centers, hospices.
Publisher	Centers for Medicare and Medicaid services
Contact Information/Web Address	http://cms.hhs.gov/data/purchase/default.asp
Condition of Use	No restrictions
Contents of Database
Key Linking Variables
•Patient identifier	N/A
•Physician identifier	N/A
•Health facility identifier	Name, Medicare provider number
•Geographic identifier	State, county, street address, zip code
•Other identifier
Demographics Information	N/A
Access/Utilization Information	N/A
Health Care Facility Information
•Location	State, county, street address, zip code
•Number of beds	Yes, by categories (e.g., alcohol/drug treatment, psychiatric)
•Number of MDs	Number of residents,
•Other information	Medicare and Medicaid certification, type of control (voluntary, proprietary, government), accreditation status, number of staff, services provided. Some information is provided for only specific provider types.
Physician Information	N/A
Cost/Expenditure Information	N/A
Other Information
• A subset of the 2002 version is available at http://cms.hhs.gov/data/download/default.asp