NPI age
20 years
Enumerated 2006-03-21
● Active
Type 1 · Individual
Gregory L. Shannon, M.D.
Shannon is 1 of 32 internal medicine providers in Sugar Land and 1 of 1807 in Texas.
Primary specialty
Internal Medicine
Plus 2 subspecialties
Licensed in
TX, IL, NC
3 states
Status
Active
No deactivations on record
Last NPPES update
2023-09-26
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 1807 active internal medicine providers in Texas.
NPI age
20 years
≈ at median (19 yr)
State licenses
3 states
Top 83% — 17% of peers are multi-state
Subspecialties
1
In the 35% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-03Enumerated in NPPES
2006
2026
Where they practice
Practice location
17510 W Grand Pkwy S, #220
Sugar Land, TX 774792645
Mailing address
17510 W Grand Pkwy S, #220
Sugar Land, TX 774792645
Specialties
-
Internal Medicine PrimaryAn internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and...
-
SpecialistAn individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
Practice context
Part of a multi-provider practice. 30 other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new internal medicine provider has been added in Sugar Land in the last 180 days.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
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