NPI Atlas

Mrs. Abigail Brooks Callahan, AC-PNP

Pediatric Nurse Practitioner in Dallas, Texas. NPI 1649655317.

NPI1649655317

Registry record

NPI
1649655317
Profession
Nurse Practitioner (NP)
Specialty
Pediatric Nurse Practitioner (363LP0200X)
Practice address
9525 Greenville Ave
Dallas, TX 75243
In the registry since
July 23, 2015
Last NPPES update
March 14, 2025
Sole proprietor
No
License
1146506 (TX)

At this location

One other provider in our data lists 9525 Greenville Ave, Dallas as a practice address:

In context

The NPI number of Abigail Callahan is 1649655317. They are a Pediatric Nurse Practitioner in Dallas, Texas.

Abigail Callahan is one of 363 Pediatric Nurse Practitioners in Dallas and one of 2,482 across Texas in our data. Dallas ranks #2 among Texas cities in our dataset, with 4,918 NP and PA providers.

The NPI has been in the federal registry for 10 years, since July 23, 2015.

Frequently asked questions

What is NPI 1649655317?

NPI 1649655317 is the 10-digit National Provider Identifier assigned to Abigail Callahan, a Pediatric Nurse Practitioner practicing in Dallas, Texas. The record has been in the NPPES registry since July 23, 2015.

How do I verify this provider?

Cross-check NPI 1649655317 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license 1146506 with the TX licensing board. You can also run the number through our free NPI validator to confirm its checksum.

Is this information current?

This profile reflects the June 2026 NPPES data file. NPPES lists the record's last update as March 14, 2025. We refresh our data each month when CMS publishes a new file.

Data: NPPES public registry, June 2026 file. Not medical advice. Verify independently before care or credentialing decisions. Errors in the source record can be corrected at nppes.cms.hhs.gov; see our corrections page.