NPI age
17 years
Enumerated 2008-07-01
● Active
Type 1 · Individual
DR. Manuel Arnaldo Vilchez-Diaz, M.D.
Vilchez-Diaz is 1 of 141 internal medicine providers in Houston and 1 of 479 in Texas.
Primary specialty
Internal Medicine
Plus 2 subspecialties
Licensed in
TX, AR
2 states
Status
Active
No deactivations on record
Last NPPES update
2020-03-12
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 479 active internal medicine providers in Texas.
NPI age
17 years
≈ at median (16 yr)
State licenses
2 states
Top 67% — 32% of peers are multi-state
Subspecialties
1
In the 79% of peers with subspecialties
NPI lifetime · 2008 → 2026
2008-07Enumerated in NPPES
2008
2026
Where they practice
Practice location
6565 Fannin St Ste 1003
Houston, TX 770302703
Mailing address
6565 Fannin St Ste 1003
Houston, TX 770302703
Additional practice locations
1 secondary location on file with NPPES.
Location 2
7301 Rogers Ave
Fort Smith, AR 729034100
Specialties
-
Internal Medicine PrimaryAn internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the...
-
Internal MedicineAn internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients...
Practice context
Part of a multi-provider practice. 2 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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