Gregg D'Angelo, PHD
NPI 1598776593 · Clinical Neuropsychologist · Dallas, TX
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregg D'Angelo, PHD is a Clinical Neuropsychologist provider in Dallas, TX (NPI 1598776593).
Provider details
- NPI number
- 1598776593
- Entity type
- Individual
- Primary specialty
- Clinical NeuropsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 24947 (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
19 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
509 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 | 276 | $35 |
| Evaluation of Neuropsychological Test, Each Additional Hour96133 | 77 | $96 |
| Administration of Psychological Or Neuropsychological Test By Technician, First 30 Minutes96138 | 43 | $34 |
| Evaluation of Neuropsychological Test, First Hour96132 | 42 | $127 |
| Psychotherapy, 45 Minutes90834 | 28 | $102 |
| Psychiatric Diagnostic Evaluation90791 | 24 | $170 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-11
- Last updated
- 2014-09-17
Frequently asked questions
- What is Gregg D'Angelo's NPI number?
- Gregg D'Angelo's National Provider Identifier (NPI) is 1598776593, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregg D'Angelo's specialty?
- Gregg D'Angelo is listed in the NPPES registry with a primary specialty of Clinical Neuropsychologist (Behavioral Health & Social Service Providers).
- Where is Gregg D'Angelo located?
- Gregg D'Angelo's practice location on file with NPPES is 11882 Greenville Ave Ste 121, Dallas, TX 75243-3567.
- What is Gregg D'Angelo's phone number?
- The practice phone number listed in the NPPES registry for Gregg D'Angelo is (972) 424-9212.
- Does Gregg D'Angelo accept Medicare?
- Gregg D'Angelo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregg D'Angelo's NPI active?
- Yes — Gregg D'Angelo's NPI (1598776593) is active in the NPPES registry as of the last update on 2014-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.