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Zachary Appenzeller, PSY.D.
NPI 1821774472 · Clinical Psychologist · Houston, TX
Zachary Appenzeller, PSY.D. is a Clinical Psychologist provider in Houston, TX (NPI 1821774472).
Provider details
- NPI number
- 1821774472
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 39769 (TX)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(58/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
5615 H. Mark Crosswell Jr St.
Houston, TX 77021
Phone: (713) 500-1500
Fax: (713) 500-2714
Approximate (ZIP-level) locationGet directions
Mailing address
1941 East Rd
Houston, TX 77054-6010
Registry dates
- Enumerated
- 2023-06-27
- Last updated
- 2023-06-27
- Certified
- 2023-06-13
Frequently asked questions
- What is Zachary Appenzeller's NPI number?
- Zachary Appenzeller's National Provider Identifier (NPI) is 1821774472, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Appenzeller's specialty?
- Zachary Appenzeller is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Zachary Appenzeller located?
- Zachary Appenzeller's practice location on file with NPPES is 5615 H. Mark Crosswell Jr St., Houston, TX 77021.
- What is Zachary Appenzeller's phone number?
- The practice phone number listed in the NPPES registry for Zachary Appenzeller is (713) 500-1500.
- Is Zachary Appenzeller's NPI active?
- Yes — Zachary Appenzeller's NPI (1821774472) is active in the NPPES registry as of the last update on 2023-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.