NPI Atlas

Mackenzie Nicole Zier, PNP-AC

Critical Care Pediatric Nurse Practitioner in Houston, Texas. NPI 1639641806.

NPI1639641806

Registry record

NPI
1639641806
Profession
Nurse Practitioner (NP)
Specialty
Critical Care Pediatric Nurse Practitioner (363LP0222X)
Practice address
6621 Fannin St
Houston, TX 77030
Phone
8328241000
In the registry since
December 27, 2018
Last NPPES update
December 27, 2018
Sole proprietor
No
License
AP139245 (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 Mackenzie Zier is 1639641806. They are a Critical Care Pediatric Nurse Practitioner in Houston, Texas.

Mackenzie Zier 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 December 27, 2018.

Frequently asked questions

What is NPI 1639641806?

NPI 1639641806 is the 10-digit National Provider Identifier assigned to Mackenzie Zier, a Critical Care Pediatric Nurse Practitioner practicing in Houston, Texas. The record has been in the NPPES registry since December 27, 2018.

How do I verify this provider?

Cross-check NPI 1639641806 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license AP139245 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 December 27, 2018. 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.