NPI age
11 years
Enumerated 2015-04-02
● Active
Type 1 · Individual
William Harding
Harding is 1 of 247 internal medicine providers in Houston and 1 of 1318 in Texas.
Primary specialty
Internal Medicine
Plus 3 subspecialties
Licensed in
TX, DC
2 states
Status
Active
No deactivations on record
Last NPPES update
2019-06-19
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 1318 active internal medicine providers in Texas.
NPI age
11 years
↓ 7 yr below median (18 yr)
State licenses
2 states
Top 84% — 15% of peers are multi-state
Subspecialties
2
In the 57% of peers with subspecialties
NPI lifetime · 2015 → 2026
2015-04Enumerated in NPPES
2015
2026
Where they practice
Practice location
6431 Fannin St Ste Msb 1434
Houston, TX 77030
Mailing address
6431 Fannin St Ste Msb 1434
Houston, TX 770301501
Additional practice locations
3 secondary locations on file with NPPES.
Location 2
6431 Fannin St Ste Jjl 310
Houston, TX 770301501
Location 3
3800 Reservoir Rd Nw
Washington, DC 200072113
Location 4
6431 Fannin St Ste Msb 1434
Houston, TX 77030
Specialties
-
Internal Medicine PrimaryAn internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex...
-
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,...
-
Student in an Organized Health Care Education/Training ProgramAn individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
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 →
- 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.