DR. MICHELLE COLLIER O'LEARY (MD) – Anatomic Pathology & Clinical Pathology Physician, NPI 1285890863

DR. MICHELLE COLLIER O'LEARY (MD) is a healthcare provider. based in Joliet, Illinois. specializing in PATHOLOGY. They hold the professional credentials MD. They hold a License No. 125054485 (IL). The NPI Number for DR. MICHELLE COLLIER O'LEARY (MD) is 1285890863

Main info

Female
18 Years Of Experience
Accepts Medicare Assignment
Name
DR. MICHELLE COLLIER O'LEARY (MD)
NPI
1285890863
Phone
(815) 773-7785
Address
333 MADISON ST
Enumeration Date
1 August 2008
Last Update Date
1 August 2023

Doctor Profile

Medical School Name
RUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Secondary Phone
8157257222
Graduation Year
2008 (18 years ago)
PAC ID
9830333228
Group Practice PAC ID
0446260855
Professional Enrollment ID
I20130925000687
Address ID
IL604358200JO333XXSTXX300
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience58
Completeness75
Years active:17State licenses:1Digital endpointsOther names

766 PATHOLOGY in IL

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Provider Addresses for DR. MICHELLE COLLIER O'LEARY (MD)

  • Presence Saint Joseph Medical Center, 333, Madison Street, Joliet, Will County, Illinois, 60435, United States

    JOLIET, IL 604358200

    Phone: (815) 773-7785

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $18.

Total Amount is formed as General ($18) + Research ($0) + Ownership ($0) = $18.

Last reported payment date: 2024-03-01 • Largest payer in this snapshot: Beckman Coulter, Inc. ($18).

Total Amount

$18

General + Research + Ownership

Payments

1

Total payment records

General Amount

$18

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-03-01

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
Beckman Coulter, Inc.$18
View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2013-09-25

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20130925000687IPathologyILTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
85060Blood smear interpretation by physician with written report2,256722$0
88305Pathology examination of tissue using a microscope, intermediate complexity878484$0
88341Special stained specimen slides to examine tissue, each additional procedure494155$0
88342Special stained specimen slides to examine tissue, initial procedure410284$0
88312Special stained specimen slides to identify organisms including interpretation and report156103$0
View full utilization report →

Insurance plans in this area (ZIP 60435)

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Provider's Procedures

DR. MICHELLE COLLIER O'LEARY (MD) performs procedures in PATHOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
PATHOLOGYIL88304Pathology examination of tissue using a microscope, moderately low complexity178156
PATHOLOGYIL88307Pathology examination of tissue using a microscope, moderately high complexity156129

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 0446260855View full group profile
NameSpecialtyState
P A T H O L O G YIL
P A T H O L O G YIL
Pathology, HematologyIL

Reviews

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Frequently asked questions

Can I verify DR. MICHELLE COLLIER O'LEARY (MD) with an NPI only?
You can start verification with NPI 1285890863 for DR. MICHELLE COLLIER O'LEARY (MD), then check state licensing separately.
Is DR. MICHELLE COLLIER O'LEARY (MD) listed as active for patients and plans?
The listing shows DR. MICHELLE COLLIER O'LEARY (MD) as active in the NPI system.
What is DR. MICHELLE COLLIER O'LEARY (MD)'s specialty?
The listing groups DR. MICHELLE COLLIER O'LEARY (MD) with Anatomic Pathology & Clinical Pathology Physician. Clinical services aligned with this taxonomy classification.
Where should I expect DR. MICHELLE COLLIER O'LEARY (MD) on a map?
Expect Joliet, Illinois as a primary anchor for DR. MICHELLE COLLIER O'LEARY (MD) unless the record lists multiple sites.
Is specialty guaranteed by NPI alone?
Taxonomy selections describe intent; scope of practice still follows state law.

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