Alexandra Clark, PHD
NPI 1831755537 · Clinical Neuropsychologist · Austin, TX
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexandra Clark, PHD is a Clinical Neuropsychologist provider in Austin, TX (NPI 1831755537).
Provider details
- NPI number
- 1831755537
- Entity type
- Individual
- Primary specialty
- Clinical NeuropsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 39726 (TX)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
348 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Administration of Psychological Or Neuropsychological Test By Technician, Each Additional 30 Minutes96139 | 193 | $36 |
| Evaluation of Neuropsychological Test, First Hour96132 | 57 | $127 |
| Evaluation of Neuropsychological Test, Each Additional Hour96133 | 43 | $96 |
| Administration of Psychological Or Neuropsychological Test By Technician, First 30 Minutes96138 | 29 | $35 |
| Exam of Neurobehavioral Status, First Hour96116 | 26 | $91 |
Typical Medicare-allowed amounts for these services range $35–$127 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-05-17
- Last updated
- 2025-08-27
- Certified
- 2025-08-27
Frequently asked questions
- What is Alexandra Clark's NPI number?
- Alexandra Clark's National Provider Identifier (NPI) is 1831755537, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Clark's specialty?
- Alexandra Clark is listed in the NPPES registry with a primary specialty of Clinical Neuropsychologist (Behavioral Health & Social Service Providers).
- Where is Alexandra Clark located?
- Alexandra Clark's practice location on file with NPPES is 711 W 38th St Ste F2, Austin, TX 78705-1133.
- What is Alexandra Clark's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Clark is (512) 637-5841.
- Does Alexandra Clark accept Medicare?
- Alexandra Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexandra Clark's NPI active?
- Yes — Alexandra Clark's NPI (1831755537) is active in the NPPES registry as of the last update on 2025-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.