NPI age
10 years
Enumerated 2016-04-26
● Active
Type 1 · Individual
Mahmoud Allahham, M.D.
Allahham is 1 of 1938 internal medicine providers in Houston and 1 of 12343 in Texas.
Primary specialty
Internal Medicine
Plus 2 subspecialties
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-07-07
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 12343 active internal medicine providers in Texas.
NPI age
10 years
↓ 7 yr below median (17 yr)
State licenses
1 state
12% of peers hold multiple states
Subspecialties
1
In the 33% of peers with subspecialties
NPI lifetime · 2016 → 2026
2016-04Enumerated in NPPES
2016
2026
Where they practice
Practice location
6720 Bertner Ave
Houston, TX 770302604
Mailing address
6620 Main St # 11b.285
Houston, TX 770302348
Additional practice locations
3 secondary locations on file with NPPES.
Location 2
1 Baylor Plz
Houston, TX 770303411
Location 3
1504 Taub Loop
Houston, TX 770301608
Location 4
1515 Holcombe Blvd
Houston, TX 770304000
Specialties
-
Internal Medicine PrimaryA 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,...
-
HospitalistHospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term...
Practice context
Part of a multi-provider practice. 423 other active providers share this practice address in NPPES.
Recently enumerated nearby: 6 new internal medicine providers have been added in Houston in the last 180 days.
See all →
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- 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.
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