NPI age
19 years
Enumerated 2006-06-21
● Active
Type 1 · Individual
DR. Gary B Weiss, PH.D, MD
Weiss is 1 of 8 internal medicine providers in Webster and 1 of 1069 in Texas.
Primary specialty
Internal Medicine
Plus 2 subspecialties
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-03-20
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 1069 active internal medicine providers in Texas.
NPI age
19 years
≈ at median (18 yr)
State licenses
1 state
22% of peers hold multiple states
Subspecialties
2
In the 52% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-06Enumerated in NPPES
2006
2026
Where they practice
Practice location
501 Medical Center Blvd
Webster, TX 775984219
Mailing address
Po Box 911230
Dallas, TX 753911230
Additional practice locations
1 secondary location on file with NPPES.
Location 2
4801 Alberta Ave
El Paso, TX 799052707
Specialties
-
Internal Medicine PrimaryAn internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine...
-
Internal MedicineAn internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and...
-
Internal MedicineA physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer,...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 135570304 | CSHCN |
| 05 (TX) | 135570307 | |
| 05 (TX) | 135570301 | |
| 05 (TX) | 135570303 | |
| 05 (TX) | 135570310 | |
| 05 (TX) | 135570309 | |
| 01 (TX) | 8R1585 | BLUE CROSS OF TEXAS |
Practice context
Part of a multi-provider practice. 7 other active providers share this practice address in NPPES.
Provyx · Custom healthcare lists
Need all 1069 Internal Medicine providers in Texas?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.