NPI age
8 years
Enumerated 2018-05-24
● Active
Type 1 · Individual
Mary Katherine Byrd Armstrong, PA-C
Armstrong is 1 of 8 physician assistant providers in Pasadena and 1 of 2220 in Texas.
Primary specialty
Physician Assistant
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2021-07-15
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 2220 active physician assistant providers in Texas.
NPI age
8 years
↓ 7 yr below median (15 yr)
State licenses
1 state
6% of peers hold multiple states
Subspecialties
0
20% of peers hold subspecialties
NPI lifetime · 2018 → 2026
2018-05Enumerated in NPPES
2018
2026
Where they practice
Practice location
4450 E Sam Houston Pkwy S Ste H2
Pasadena, TX 775053950
Mailing address
4450 E Sam Houston Pkwy S Ste H2
Pasadena, TX 775053950
Specialties
-
Physician Assistant PrimaryDefinition to come...
Practice context
Part of a multi-provider practice. 5 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.