- First two positions are the GEO SSA State Code.

Exception: 55 = California

67 = Texas

68 = Florida

- Positions 3 and sometimes 4 are used as a category identifier. The remaining positions are serial numbers. The following blocks of numbers are reserved for the facilities indicated (NOTE: may have different meanings dependent on the Type of Bill (TOB):

0001-0899 Short-term (general and specialty) hospitals where TOB = 11X; ESRD clinic where TOB = 72X

0900-0999 Multiple hospital component in a medical complex (numbers retired) where TOB = 11X; ESRD clinic where TOB = 72X:

1000-1199 Reserved for future use

1200-1224 Alcohol/drug hospitals (excluded from PPS-numbers retired) where TOB = 11X; ESRD clinic where TOB = 72X:

1225-1299 Medical assistance facilities (Montana project); ESRD clinic where TOB = 72X

1300-1399 Rural Primary Care Hospital (RCPH) - eff. 10/97 changed to Critical Access Hospitals (CAH)

1400-1499 Continuation of 4600-4799 series (CMHC) (eff. 5/97)

1500-1799 Hospices

1800-1989 Federally Qualified Health Centers (FQHC) where TOB = 73X; SNF (IP PTB) where TOB = 22X; HHA where TOB = 32X, 33X, 34X

1990-1999 Christian Science Sanatoria (hospital services)

2000-2299 Long-term hospitals (excluded from PPS)

2300-2499 Chronic renal disease facilities (hospital based)

2500-2899 Non-hospital renal disease treatment centers

2900-2999 Independent special purpose renal dialysis facility (1)

3000-3024 Formerly tuberculosis hospitals (numbers retired)

3025-3099 Rehabilitation hospitals (excluded from PPS)

3100-3199 Continuation of 7300-7399 (HHA) (eff. 4/96)

3200-3299 Continuation of 4500-4599 series (CORF) (eff. 5/97)

3300-3399 Children's hospitals (excluded from PPS) where TOB = 11X; ESRD clinic where TOB =72X

3400-3499 Continuation of rural health clinics (provider-based) (3975-3999)

3500-3699 Renal disease treatment centers (hospital satellites)

3700-3799 Hospital based special purpose renal dialysis facility (1)

3800-3974 Rural health clinics (free-standing)

3975-3999 Rural health clinics (provider-based)

4000-4499 Psychiatric hospitals (excluded from PPS)

4500-4599 Comprehensive Outpatient Rehabilitation Facilities (CORF)

4600-4799 Community Mental Health Centers (CMHC);10/1/91 - 3/31/97 used for clinic OPTwhere TOB = 74X

4800-4899 Continuation of 4500-4599 series (CORF) (eff. 10/95)

4900-4999 Continuation of 4600-4799 series (CMHC)(eff. 10/95); 10/1/91 - 3/31/97 used for clinic OPT where TOB = 74X

5000-6399 Skilled Nursing Facilities

6400-6499 Reserved for future use (2)

6500-6899 Outpatient physical therapy services where TOB = 74X; CORF where TOB =75X

6900-6989 Continuation of outpatient physical therapy services (eff. 10/95) where TOB = 74X; CORF where TOB = 75X

6990-6999 Christian Science Sanatoria (skilled nursing services)

7000-7299 Home Health Agencies (HHA) (3)

7300-7399 Subunits of 'nonprofit' and 'proprietary' Home Health Agencies (4)

7400-7799 Continuation of 7000-7299 series

7800-7999 Subunits of state and local governmental Home Health Agencies (4)

8000-8499 Continuation of 7400-7799 series (HHA)

8500-8899 Continuation of rural health center (provider based) (3400-3499)

8900-8999 Continuation of rural health center (free-standing) (3800-3975)

9000-9499 Continuation of 8000-8499 series (HHA) (eff. 10/95)

9500-9999 Reserved for future use (eff. 8/1/98)

NOTE: 10/95-7/98 this series was assigned to HHA's but rescinded - no HHA's were ever assigned a number from this series.  Exception: P001-P999 Organ procurement organization

(1) These facilities (SPRDFS) will be assigned the same provider number whenever they are recertified.

(2) The 6400-6499 series of provider numbers in Iowa (16), South Dakota (43) and Texas (45) have been used in reducing acute care costs (RACC) experiments.

(3) In Virginia (49), the series 7100-7299 has been reserved for statewide subunit components of the Virginia state home health agencies.

(4) Parent agency must have a number in the 7000-7299, 7400-7799 or 8000-8499 series.

NOTE: There is a special numbering system for units of hospitals that are excluded from prospective payment system (PPS) and hospitals with SNF swing-bed designation. An alpha character in the third position of the provider number identifies the type of unit or swing-bed designation as follows:

S = Psychiatric unit (excluded from PPS)

T = Rehabilitation unit (excluded from PPS)

U = Short term/acute care swing-bed hospital

V = Alcohol drug unit (prior to 10/87 only)

W = Long term SNF swing-bed hospital (eff 3/91)

Y = Rehab hospital swing-bed (eff 9/92)

Z = Rural primary care swing-bed hospital

There is also a special numbering system for assigning emergency hospital identification numbers (non participating hospitals). The sixth position of the provider number is as follows:

E = Non-federal emergency hospital