Physician characteristics were derived from 2006 American Medical Association Physician Master file (AMA MF). Characteristics of primary care physicians (family physicians, general internists, and pediatricians), specialists, obstetricians /gynecologists are provided at ZCTA and PCSA levels. Physician supply (unadjusted and age-sex adjusted rates per capita) was calculated at the PCSA-level only. The method for calculating age-sex adjusted supply was based on the method as described in the Dartmouth Atlas of Health Care, 1999. (www.dartmouthatlas.org)

The two downloadable DBF format files that contain these data are:

1. ZCTA-level: hrsa_ama1008_zcta.dbf (19,665 KB); 32,011 ZCTAs with 41 variables
2. PCSA-level: hrsa_ama1008_pcsa.dbf (5,369 KB); 6,542 PCSAs with 54 variables

For detailed information, please refer to the data dictionary: HRSA AMA Data Dictionary 1008.xls (Excel format) or HRSA AMA Data Dictionary 1008.pdf (PDF format)

The two downloadable DBF format files that contain these data are:

1. ZCTA-level: hrsa_cms0907_zcta.dbf (18,539 KB); 32,011 ZCTAs with 38 variables
2. PCSA-level: hrsa_cms0907_pcsa.dbf (10,865 KB); 6,542 PCSAs with 107 variables

For detailed information, please refer to the data dictionary: HRSA CMS Data Dictionary 091307.xls (Excel format) or HRSA CMS Data Dictionary_0907.pdf (PDF format)

This addition to the PCSA dataset provides the user with multiple means to assign markers of under service (Health Professional Shortage Areas (primary care, mental health, and dental) and Medically Underserved Areas/ Medically Underserved Populations) at the ZCTA level and the PCSA level. The data has been prepared in collaboration with the Robert Graham Center for Primary Care Studies. The HPSA/MUA data were accessed on 04/19/2007, and the population was aggregated from 2006 block level population estimates*. Additional information about federal HPSA and MUA designation may be found online at http://bhpr.hrsa.gov/shortage/

The two downloadable DBF format files that contain these data are:

1. ZCTA-level: ZCTA_HPSA_MUA_0908.dbf (14,633 KB); 32,011 ZCTAs with 67 variables
2. PCSA-level: PCSA_HPSA_MUA_0908.dbf (2,756 KB); 6,542 PCSAs with 64 variables

For detailed information, please refer to the data dictionary HPSA_MUA_DD.xls (Excel format) or HPSA_MUA_DD.PDF (PDF format) and to the "readme" file HPSA_MUA_Readme_0908.pdf (PDF format)

The purpose of the NPI update is to provide 2006 primary care physician supply by PCSA and county based on 2006 American Medical Association Physician Masterfile (AMA MF) and 20% Centers for Medicare and Medicaid Services (CMS) Medicare Part B and Outpatient claim data.

Because residents usually do not have own UPIN and CMS claims contain services to the elderly only, both lower and upper bounds of primary care supply were provided.

The two downloadable DBF format files that contain these data are:

1. PCSA-level: hrsa_npi0908_pcsa.dbf (5,618 KB); 6,542 PCSAs with 56 variables
2. County-level: hrsa_npi0908_cnty.dbf (535 KB); 3141 Counties with 12 variables

For detailed information, please refer to the data dictionary HRSA National Physician Inventory Data Dictionary 0908.xls or HRSA National Physician Inventory Data Dictionary 0908.pdf (PDF format) and to the "readme" file HRSA National Physician Inventory README.pdf

Due to the limit on the number of columns that a DBF can contain, the data for these subjects have been split into multiple files for each summary level. The ZCTA summary level comprises 460 unique variables; the PCSA summary level has 677.

The downloadable DBF format files that contain these data are:

1. ZCTA-level: est06_zcta1.dbf(69,875 KB); 218 variables including 12 header variables (identification and total population variables)
2. ZCTA-level: est06_zcta2.dbf (84,631 KB); 254 variables with the same 12 header variables
3. PCSA-level: est06_pcsa1.dbf (13,998 KB); 215 variables including 9 header variables,
4. PCSA-level: est06_pcsa2.dbf (17,015 KB); 251 variables with the same 9 header variables, and
5. PCSA-level: est06_pcsa3.dbf (14,714 KB); 229 variables with the same 9 header variables.

For detailed information about the data elements, please refer to data dictionary file 2006 Population Update Data Dictionary.xls .

The methodology is described in Population Estimates 2006.pdf and Population_Pov_Ins_2007.pdf .