NPI Atlas

Dr. Stephen Alexander Mack, APRN-CNP; PMHNP-C

Family Nurse Practitioner in Katy, Texas. NPI 1245352756.

NPI1245352756

Registry record

NPI
1245352756
Profession
Nurse Practitioner (NP)
Specialty
Family Nurse Practitioner (363LF0000X)
Practice address
21613 Provincial Blvd
Katy, TX 77450
In the registry since
April 4, 2007
Last NPPES update
August 31, 2023
Sole proprietor
Yes
License
AP128914 (TX)

At this location

This location lists no other NP or PA providers in our current data.

In context

The NPI number of Stephen Mack is 1245352756. They are a Family Nurse Practitioner in Katy, Texas.

Stephen Mack is one of 261 Family Nurse Practitioners in Katy and one of 22,499 across Texas in our data. Katy ranks #14 among Texas cities in our dataset, with 538 NP and PA providers.

The NPI has been in the federal registry for 19 years, since April 4, 2007.

Frequently asked questions

What is NPI 1245352756?

NPI 1245352756 is the 10-digit National Provider Identifier assigned to Stephen Mack, a Family Nurse Practitioner practicing in Katy, Texas. The record has been in the NPPES registry since April 4, 2007.

How do I verify this provider?

Cross-check NPI 1245352756 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license AP128914 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 August 31, 2023. 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.