NPI age
19 years
Enumerated 2006-12-08
● Active
Type 1 · Individual
PROF. John Andrew Grant JR., MD
Grant is 1 of 3 internal medicine providers in Galveston and 1 of 63 in Texas.
Primary specialty
Internal Medicine
Plus 2 subspecialties
Licensed in
TX, CO
2 states
Status
Active
No deactivations on record
Last NPPES update
2014-01-09
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 63 active internal medicine providers in Texas.
NPI age
19 years
≈ at median (18 yr)
State licenses
2 states
Top 77% — 22% of peers are multi-state
Subspecialties
1
In the 54% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-12Enumerated in NPPES
2006
2026
Where they practice
Practice location
301 University Blvd, John Sealy Annex 5.112
Galveston, TX 775550561
Mailing address
301 University Blvd, John Sealy Annex 5.112
Galveston, TX 775550561
Specialties
-
Internal Medicine PrimaryAn internist doctor of osteopathy that specializes in the treatment of allergy and immunologic disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a...
-
Allergy & ImmunologyAn allergy and immunology physician who specializes in clinical and laboratory immunology disease management..
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 117162102 | |
| 05 (CO) | 67226051 |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 1575 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.