NPI age
9 years
Enumerated 2016-05-30
● Active
Type 1 · Individual
Robert Horn, M.D.
Horn is 1 of 95 internal medicine providers in San Antonio and 1 of 1069 in Texas.
Primary specialty
Internal Medicine
Plus 2 subspecialties
Licensed in
TX, MA
2 states
Status
Active
No deactivations on record
Last NPPES update
2024-08-23
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
9 years
↓ 9 yr below median (18 yr)
State licenses
2 states
Top 77% — 22% of peers are multi-state
Subspecialties
1
In the 52% of peers with subspecialties
NPI lifetime · 2016 → 2026
2016-05Enumerated in NPPES
2016
2026
Where they practice
Practice location
5206 Research Dr
San Antonio, TX 782405251
Mailing address
12210 Ithaca Ave
Lubbock, TX 794232768
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 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,...
Practice context
Part of a multi-provider practice. 36 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.