Alexandra Sibley, MD
NPI 1538507611 · Psychiatry Physician · Stafford, TX
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexandra Sibley, MD is a Psychiatry Physician provider in Stafford, TX (NPI 1538507611).
Provider details
- NPI number
- 1538507611
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- T-3431 (MS)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 263 | 67 |
| Trazodone Hcl | 240 | 57 |
| Buspirone Hcl | 205 | 51 |
| Quetiapine Fumarate | 189 | 40 |
| Escitalopram Oxalate | 166 | 46 |
| Mirtazapine | 148 | 38 |
| Duloxetine Hcl | 147 |
Practice location
Mailing address
Additional practice locations (1)
- 2222 Cleburne St Ste 108Houston, TX 77004-5177Phone: (832) 548-5000
Registry dates
- Enumerated
- 2013-06-11
- Last updated
- 2022-10-25
- Certified
- 2022-10-25
Frequently asked questions
- What is Alexandra Sibley's NPI number?
- Alexandra Sibley's National Provider Identifier (NPI) is 1538507611, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Sibley's specialty?
- Alexandra Sibley is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Alexandra Sibley located?
- Alexandra Sibley's practice location on file with NPPES is 12540 Sugardale Dr, Stafford, TX 77477-3702.
- What is Alexandra Sibley's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Sibley is (601) 815-1368.
- Does Alexandra Sibley accept Medicare?
- Alexandra Sibley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexandra Sibley's NPI active?
- Yes — Alexandra Sibley's NPI (1538507611) is active in the NPPES registry as of the last update on 2022-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.