Zachary Tallackson
NPI 1326629692 · Psychiatry Physician · Houston, TX
Zachary Tallackson is a Psychiatry Physician provider in Houston, TX (NPI 1326629692).
Provider details
- NPI number
- 1326629692
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- V8411 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Escitalopram Oxalate | 26 |
| Mirtazapine | 16 |
| Risperidone | 14 |
| Memantine Hcl | 12 |
| Aripiprazole | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-04-19
- Last updated
- 2026-03-17
- Certified
- 2026-03-17
Frequently asked questions
- What is Zachary Tallackson's NPI number?
- Zachary Tallackson's National Provider Identifier (NPI) is 1326629692, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Tallackson's specialty?
- Zachary Tallackson is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Tallackson located?
- Zachary Tallackson's practice location on file with NPPES is 1941 East Rd Rm 3236, Houston, TX 77054-6010.
- What is Zachary Tallackson's phone number?
- The practice phone number listed in the NPPES registry for Zachary Tallackson is (713) 486-2700.
- Is Zachary Tallackson's NPI active?
- Yes — Zachary Tallackson's NPI (1326629692) is active in the NPPES registry as of the last update on 2026-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.