NPI Atlas

Tammy L Costic, DNP, APRN, CPNP-AC

Critical Care Pediatric Nurse Practitioner in Houston, Texas. NPI 1255894846.

NPI1255894846

Registry record

NPI
1255894846
Profession
Nurse Practitioner (NP)
Specialty
Critical Care Pediatric Nurse Practitioner (363LP0222X)
Practice address
6621 Fannin St
Houston, TX 77030
Phone
8882264343
In the registry since
April 10, 2019
Last NPPES update
October 23, 2025
Sole proprietor
No
License
AP1411171 (TX)

At this location

193 other providers in our data list 6621 Fannin St, Houston as a practice address:

In context

The NPI number of Tammy Costic is 1255894846. They are a Critical Care Pediatric Nurse Practitioner in Houston, Texas.

Tammy Costic is one of 55 Critical Care Pediatric Nurse Practitioners in Houston and one of 241 across Texas in our data. Houston ranks #1 among Texas cities in our dataset, with 8,326 NP and PA providers.

The NPI has been in the federal registry for 7 years, since April 10, 2019.

Frequently asked questions

What is NPI 1255894846?

NPI 1255894846 is the 10-digit National Provider Identifier assigned to Tammy Costic, a Critical Care Pediatric Nurse Practitioner practicing in Houston, Texas. The record has been in the NPPES registry since April 10, 2019.

How do I verify this provider?

Cross-check NPI 1255894846 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license AP1411171 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 October 23, 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.