NPI age
19 years
Enumerated 2006-07-05
● Active
Type 1 · Individual
DR. William J Graber IV, M.D.
Graber is 1 of 207 urology providers in Houston and 1 of 1194 in Texas.
Primary specialty
Urology
Plus 1 subspecialty
Licensed in
TX, MT
2 states
Status
Active
No deactivations on record
Last NPPES update
2012-07-27
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 1194 active urology providers in Texas.
NPI age
19 years
≈ at median (19 yr)
State licenses
2 states
Top 88% — 12% of peers are multi-state
Subspecialties
0
22% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-07Enumerated in NPPES
2006
2026
Where they practice
Practice location
1515 Holcombe Blvd
Houston, TX 770304009
Mailing address
Po Box 4439
Houston, TX 772104439
Specialties
-
Urology PrimaryA urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 039850503 (MDACC) | |
| 01 (TX) | TXB101595 | MEDICARE HARRIS |
| 01 (TX) | TXB101600 | MEDICARE MONTGOMERY |
| 05 (MT) | 1700816428 | |
| 01 (TX) | 8DB991 | BCBS (MDACC) |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 3675 other active providers share this practice address in NPPES.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
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