NPI age
19 years
Enumerated 2006-08-31
● Active
Type 1 · Individual
Kirkwood Alexander Johnston, MD
Johnston is 1 of 123 internal medicine providers in Houston and 1 of 749 in Texas.
Primary specialty
Internal Medicine
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2021-06-09
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 749 active internal medicine providers in Texas.
NPI age
19 years
≈ at median (18 yr)
State licenses
1 state
15% of peers hold multiple states
Subspecialties
1
In the 34% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-08Enumerated in NPPES
2006
2026
Where they practice
Practice location
2727 W Holcombe Blvd
Houston, TX 770251669
Mailing address
11511 Shadow Creek Pkwy
Pearland, TX 775847298
Additional practice locations
3 secondary locations on file with NPPES.
Location 2
2515 Business Center Dr
Pearland, TX 775842294
Location 3
1010 S Ponds Dr
Webster, TX 775981409
Location 4
1200 McKinney St Ste 473
Houston, TX 770102004
Specialties
-
Internal Medicine PrimaryAn internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and "collagen" diseases.
-
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,...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 200098603 | |
| 05 (TX) | 200098606 | |
| 05 (TX) | 200098605 |
Practice context
Part of a multi-provider practice. 335 other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new internal medicine provider has been added in Houston in the last 180 days.
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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.