Randall Summerville, PSYD
NPI 1821180803 · Clinical Psychologist · Lombard, IL
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Randall Summerville, PSYD is a Clinical Psychologist provider in Lombard, IL (NPI 1821180803).
Provider details
- NPI number
- 1821180803
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 071-006658 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
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
3,558 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 | 1,252 | $34 |
| Evaluation of Neuropsychological Test, Each Additional Hour96133 | 782 | $91 |
| Evaluation of Neuropsychological Test, First Hour96132 | 306 | $121 |
| Administration of Psychological Or Neuropsychological Test, Each Additional 30 Minutes96137 | 291 | $35 |
| Administration of Psychological Or Neuropsychological Test, Each Additional 30 Minutes96137 | 253 | $16 |
| Administration of Psychological Or Neuropsychological Test By Technician, First 30 Minutes96138 | 240 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-28
- Last updated
- 2022-12-05
- Certified
- 2022-11-29
Frequently asked questions
- What is Randall Summerville's NPI number?
- Randall Summerville's National Provider Identifier (NPI) is 1821180803, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Randall Summerville's specialty?
- Randall Summerville is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Randall Summerville located?
- Randall Summerville's practice location on file with NPPES is 477 E Butterfield Rd Ste 102, Lombard, IL 60148-4880.
- What is Randall Summerville's phone number?
- The practice phone number listed in the NPPES registry for Randall Summerville is (630) 424-8900.
- Does Randall Summerville accept Medicare?
- Randall Summerville is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Randall Summerville's NPI active?
- Yes — Randall Summerville's NPI (1821180803) is active in the NPPES registry as of the last update on 2022-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.