NPI age
6 years
Enumerated 2020-04-13
● Active
Type 1 · Individual
DR. Phu Si Huynh, MD
Huynh is 1 of 141 internal medicine providers in Houston and 1 of 479 in Texas.
Primary specialty
Internal Medicine
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-07-21
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
6 years
↓ 10 yr below median (16 yr)
State licenses
1 state
32% of peers hold multiple states
Subspecialties
1
In the 79% of peers with subspecialties
NPI lifetime · 2020 → 2026
2020-04Enumerated in NPPES
2020
2026
Where they practice
Practice location
6411 Fannin St
Houston, TX 770301501
Mailing address
6431 Fannin St, Msb 1.255e
Houston, TX 770301501
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...
-
Emergency MedicineAn emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department....
Practice context
Part of a multi-provider practice. 810 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 →
- 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.