NPI age
20 years
Enumerated 2006-04-20
● Active
Type 1 · Individual
DR. Glenn A McDonald, MD
McDonald is 1 of 12 internal medicine providers in Longview and 1 of 1582 in Texas.
Primary specialty
Internal Medicine
Plus 1 subspecialty
Licensed in
TX, LA
2 states
Status
Active
No deactivations on record
Last NPPES update
2021-10-06
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 1582 active internal medicine providers in Texas.
NPI age
20 years
↑ 2 yr above median (18 yr)
State licenses
2 states
Top 86% — 14% of peers are multi-state
Subspecialties
0
34% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-04Enumerated in NPPES
2006
2026
Where they practice
Practice location
3535 N Fourth St Ste 301
Longview, TX 756050037
Mailing address
3535 N Fourth St Ste 301
Longview, TX 756050037
Additional practice locations
1 secondary location on file with NPPES.
Location 2
1815 E 70th St
Shreveport, LA 711055301
Specialties
-
Internal Medicine PrimaryAn internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 752896100 | COMMERCIAL |
| 01 (TX) | 8B0772 | BLUE CROSS & BLUE SHIELD |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 7 other active providers share this practice address in NPPES.
Provyx · Custom healthcare lists
Need all 1582 Internal Medicine providers in Texas?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
Request a quote →How to verify this provider
- 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.