Mackenzie Zier, PNP-AC
NPI 1639641806 · Critical Care Pediatric Nurse Practitioner · Houston, TX
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mackenzie Zier, PNP-AC is a Critical Care Pediatric Nurse Practitioner provider in Houston, TX (NPI 1639641806).
Provider details
- NPI number
- 1639641806
- Entity type
- Individual
- Primary specialty
- Critical Care Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PNP-AC
- Sex
- Female
- Sole proprietor
- No
- License
- AP139245 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-12-27
- Last updated
- 2018-12-27
Frequently asked questions
- What is Mackenzie Zier's NPI number?
- Mackenzie Zier's National Provider Identifier (NPI) is 1639641806, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mackenzie Zier's specialty?
- Mackenzie Zier is listed in the NPPES registry with a primary specialty of Critical Care Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mackenzie Zier located?
- Mackenzie Zier's practice location on file with NPPES is 6621 Fannin St, Houston, TX 77030-2399.
- What is Mackenzie Zier's phone number?
- The practice phone number listed in the NPPES registry for Mackenzie Zier is (832) 824-1000.
- Does Mackenzie Zier accept Medicare?
- Mackenzie Zier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mackenzie Zier's NPI active?
- Yes — Mackenzie Zier's NPI (1639641806) is active in the NPPES registry as of the last update on 2018-12-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.