NPPES file of Aug 9, 2026

Randall Warren Summerville, PSYD

Clinical Psychologist · Lombard, IL

Randall Warren Summerville, PSYD is a clinical psychologist with a practice address in Lombard, Illinois, and NPI 1821180803, issued on Sep 28, 2006. Check the license (Illinois 071-006658, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821180803
Name
Randall Warren Summerville
Credential
PSYD
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
071-006658 IL
Self-reported in NPPES; status is on the state search
Practice location
477 E Butterfield RD Ste 102, Lombard, IL 60148
Phone
(630) 424-8900
Enumerated
Sep 28, 2006
Record last updated
Dec 5, 2022
Fax
(630) 424-9017
Medicare enrollment
Enrolled (PECOS I20050623000418); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 477 E Butterfield RD Ste 102

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Chelsea CooperClinical Psychologist1700543519
  2. Carol Crews, LCSWClinical Social Worker1508108036
  3. Mohammed Siddiqui, MDGeriatric Psychiatry Physician1639456122

Verify Randall Warren Summerville in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 071-006658
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The MIPS final score for 2023 (Medicare payment program): 94.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score73.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Gregory Malo Psyd And Associates IN Neuropsychology PCLombard, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Randall Warren Summerville among 3,947 clinical psychologist records in Illinois

Randall Warren Summerville, PSYD is one of 3,947 clinical psychologist records with a practice address in Illinois. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 76% newer
  • In a Medicare fileYes · 16% of these records are
  • In the CMS Doctors and Clinicians fileYes · 27% of these records are
  • Graduated2002 · median 2004 among the 1,081 with a school on file
  • Record last updated2022 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

19 clinical psychologist records list a practice address in Lombard

They are 19 of the 1,347 NPPES records with a practice address in Lombard, and 3,947 clinical psychologist records in Illinois.

The 8 clinical psychologist records with the nearest ZIP codes

  1. James Abec, PH.D.Lombard, IL 601481770791907
  2. Samantha Blevins, PSYDLombard, IL 601481972061307
  3. Olivia Domczewski, PSYDLombard, IL 601481164997490
  4. Samar Harfi, B.ALombard, IL 601481538497441
  5. Ashley Houchin, PSY.D.Lombard, IL 601481659825586
  6. Fahad Khan, PSYDLombard, IL 601481649514266
  7. Dianna Kucera, PSY.D.Lombard, IL 601481609281385
  8. Nancy Kunkel, PSYDLombard, IL 601481235292103

Common questions

What is Randall Warren Summerville, PSYD's NPI number?

Randall Warren Summerville, PSYD's National Provider Identifier (NPI) is 1821180803, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Randall Warren Summerville, PSYD located?

The NPPES record lists a practice address at 477 E Butterfield RD Ste 102, Lombard, IL, 60148. Phone: (630) 424-8900. Providers update this record themselves, so call before visiting.

How can I verify Randall Warren Summerville, PSYD's license?

NPPES lists Illinois license number 071-006658, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

What is Randall Warren Summerville, PSYD's MIPS final score?

The 2023 MIPS final score is 94.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.