NPPES file of Aug 9, 2026

William J. Collopy

Psychiatric/Mental Health Nurse Practitioner · Oak Lawn, IL

William J. Collopy is a psychiatric/mental health nurse practitioner with a practice address in Oak Lawn, Illinois, and NPI 1407285166, issued on Nov 4, 2013. Check the license (Illinois 209-010810, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407285166
Name
William J. Collopy
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License numbers
209-010810 IL
209010810 IL
Self-reported in NPPES; status is on the state search
Practice location
4440 W 95TH St, Oak Lawn, IL 60453
Phone
(708) 684-7482
Enumerated
Nov 4, 2013
Record last updated
Dec 28, 2023
Medicare enrollment
Enrolled (PECOS I20140218000627); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

8 nearest psychiatric/mental health nurse practitioner records → All 1,530 in Illinois → Look up another NPI →

Also registered at 4440 W 95TH St

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

  1. Nadia Abdessalam, FNP-BCFamily Nurse Practitioner1356888283
  2. Akram Abdoue, M.D.Anesthesiology Physician1992752489
  3. Ahmad Abdulla, MDEmergency Medicine Physician1467202556
  4. Joseph Abraham, CRNACertified Registered Nurse Anesthetist1831653401
  5. Katherine Absalon, MOT, OTR/LOccupational Therapist1457753436
  6. Tassneem Abu-Rezeq, DNP, APRN, CPNP-ACPediatric Nurse Practitioner1831904663

Verify William J. Collopy 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 209-010810    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through one group practice

  1. Advocate Health And Hospitals CorporationElgin, IL

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

William J. Collopy among 1,530 psychiatric/mental health nurse practitioner records in Illinois

William J. Collopy is one of 1,530 psychiatric/mental health nurse practitioner records with a practice address in Illinois. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 11% of them.

  • NPI issued2013 · 11% of these records are older, 87% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2013 · median 2021 among the 917 with a school on file
  • Record last updated2023 · 17% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatric/Mental Health Nurse Practitioner providers in Illinois

There are 1,530 psychiatric/mental health nurse practitioner records in Illinois.

All 1,530 in Illinois → Every provider in Oak Lawn → Psychiatric/Mental Health Nurse Practitioner nationwide →

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Waleed AlkarakiOak Lawn, IL 604531427996685
  2. Christina Banialis, APRNOak Lawn, IL 604531972462281
  3. Faderin BotiOak Lawn, IL 604531770170466
  4. Patricia Capers, PMHNPOak Lawn, IL 604531437935830
  5. Elizabeth GawneOak Lawn, IL 604531164054011
  6. Marnyese Goosby, APRNOak Lawn, IL 604531043992878
  7. Morufat Ishola Ajayi, PMHNP-BCOak Lawn, IL 604531538960125
  8. Philip MancariOak Lawn, IL 604531487510400

Common questions

What is William J. Collopy's NPI number?

William J. Collopy's National Provider Identifier (NPI) is 1407285166, issued on Nov 4, 2013. An NPI identifies a provider in billing; it is not a license.

Where is William J. Collopy located?

The NPPES record lists a practice address at 4440 W 95TH St, Oak Lawn, IL, 60453. Phone: (708) 684-7482. Providers update this record themselves, so call before visiting.

How can I verify William J. Collopy's license?

NPPES lists Illinois license number 209-010810, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.