NPI age
9 years
Enumerated 2017-04-20
● Active
Type 1 · Individual
Jack Alston Johnson, MD
Johnson is 1 of 12 emergency medicine providers in Mansfield and 1 of 6039 in Texas.
Primary specialty
Emergency Medicine
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2020-11-06
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 6039 active emergency medicine providers in Texas.
NPI age
9 years
↓ 6 yr below median (15 yr)
State licenses
1 state
17% of peers hold multiple states
Subspecialties
0
43% of peers hold subspecialties
NPI lifetime · 2017 → 2026
2017-04Enumerated in NPPES
2017
2026
Where they practice
Practice location
2300 Lone Star Rd
Mansfield, TX 760638744
Mailing address
6451 Brentwood Stair Rd Ste 200
Fort Worth, TX 761123200
Additional practice locations
3 secondary locations on file with NPPES.
Location 2
1400 N. I-35, Ut At Austin Dell Em Residency Program, Suite 2.230
Austin, TX 78701
Location 3
108 Denver Trl
Azle, TX 760203614
Location 4
2750 Sw Wilshire Blvd
Burleson, TX 760288338
Specialties
-
Emergency Medicine PrimaryAn emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department....
Practice context
Part of a multi-provider practice. 10 other active providers share this practice address in NPPES.
Provyx · Custom healthcare lists
Need all 6039 Emergency 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.