NPI age
10 years
Enumerated 2015-07-23
● Active
Type 1 · Individual
MRS. Abigail Brooks Callahan, AC-PNP
Callahan is 1 of 339 nurse practitioner providers in Dallas and 1 of 2256 in Texas.
Primary specialty
Nurse Practitioner
Plus 1 subspecialty
Licensed in
TX, CA
2 states
Status
Active
No deactivations on record
Last NPPES update
2025-03-14
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 2256 active nurse practitioner providers in Texas.
NPI age
10 years
≈ at median (10 yr)
State licenses
2 states
Top 94% — 5% of peers are multi-state
Subspecialties
1
In the 24% of peers with subspecialties
NPI lifetime · 2015 → 2026
2015-07Enumerated in NPPES
2015
2026
Where they practice
Practice location
9525 Greenville Ave
Dallas, TX 752434116
Mailing address
110 N Clearwater Dr
Highland Village, TX 750776718
Additional practice locations
1 secondary location on file with NPPES.
Location 2
3030 Childrens Way
San Diego, CA 921234232
Specialties
-
Nurse Practitioner PrimaryDefinition to come...
-
Nurse Practitioner(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum...
Practice context
Part of a multi-provider practice. 6 other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new nurse practitioner provider has been added in Dallas in the last 180 days.
See all →
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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.