Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Michael J Oleyar , DO

Anesthesiology โ€ข Chicago, IL

Active NPI 1386969848 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

3134 N Clark St
Chicago, IL 606574414

Call 3127664949 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

3134 N Clark St

Chicago, IL 606574414

Telephone 3127664949
Organization at the Same NPPES Address or Phone
Advocate Health And Hospitals Corporation Facility NPI 1871364737

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Midland, MI. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Endeavor Health Medical Group. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Michigan State University College Of Osteopathic Medicine

Graduation Year

2010

Medicare patients

502 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $41,184 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $33,287 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $31.79 in 2023

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2023.

Guide: How to read an Open Payments record

Years since graduation

16 years (graduated 2010)

CMS Doctors and Clinicians data list 2010 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2010

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Oleyar has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Oleyar as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Chicago and Illinois

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 90% of clinicians listed under Anesthesiology in Chicago, IL (2024, 433 clinicians with data). Median for this group: 103. Middle half: 41 to 196.

More Medicare Part B services than 85% of clinicians listed under Anesthesiology in Illinois (2024, 1,277 clinicians with data). Median for this group: 111. Middle half: 49 to 202.

Medicare-allowed amount

A higher Medicare-allowed amount than 85% of clinicians listed under Anesthesiology in Chicago, IL (2024, 433 clinicians with data). Median for this group: $12,598. Middle half: $4,353 to $25,987.

A higher Medicare-allowed amount than 85% of clinicians listed under Anesthesiology in Illinois (2024, 1,277 clinicians with data). Median for this group: $13,888. Middle half: $5,137 to $26,211.

Paid by Medicare

A higher Medicare payment amount than 90% of clinicians listed under Anesthesiology in Chicago, IL (2024, 433 clinicians with data). Median for this group: $9,797. Middle half: $3,420 to $20,724.

A higher Medicare payment amount than 85% of clinicians listed under Anesthesiology in Illinois (2024, 1,277 clinicians with data). Median for this group: $11,048. Middle half: $4,093 to $21,014.

1,114 active clinicians are listed under Anesthesiology with a practice address in Chicago, IL (2,577 in Illinois).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Chicago

1.7% of these 1,114 clinicians have the CMS telehealth indicator.

53.4% of these 1,114 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Open Payments (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2023
Disclosure Year:

Program year 2023 (payments made January 1 โ€“ December 31, 2023): fewer than 11 records totaling $31.79.

Manufacturer Payment Nature Product Type Amount ($)
Merck Sharp & Dohme LLC
Food and Beverage
In-kind items and services
BRIDION General $31.79

Source: CMS Open Payments, program year 2023, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2017โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
00811 Anesthesia for other procedure on large bowel using an endoscope
100 100 $1083.36 $94.81
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope
69 67 $1246.04 $101.50
00142 Anesthesia for lens surgery
44 43 $1048.04 $70.00
00813 Anesthesia for procedure on small and large bowel using an endoscope
29 29 $1413.39 $106.97
01402 Anesthesia for procedure for total knee joint replacement
24 24 $2947.22 $225.39
00812 Anesthesia for exam of colon using an endoscope
18 18 $988.98 $68.37
01922 Anesthesia for x-ray or radiation therapy
17 17 $1777.84 $190.36
64447 Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve)
14 14 $600.00 $65.39
01214 Anesthesia for total hip replacement
13 13 $2794.13 $263.03
01400 Anesthesia for other procedure or exam of knee joint using an endoscope
13 13 $1295.86 $155.21
01810 Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand
13 13 $989.42 $84.47
00732 Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope
11 11 $1587.03 $108.26

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2025-03-24
Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

License # reported to NPPES WI 70252

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Anesthesiology

NUCC Taxonomy Code: 207L00000X

License # reported to NPPES IL 036150017

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Anesthesiology

NUCC Taxonomy Code: 207L00000X

License # reported to NPPES NY 276686

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Illinois Department of Financial and Professional Regulation.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
1386969848 (MI)
Medicaid ID
100083194 (WI)
Medicaid ID
1386969848 (NV)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - ANESTHESIOLOGY

Medicare Enrollment ID

I20220929000773

Enrollment State Jurisdiction

MI

PECOS Control ID

0547499113

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Endeavor Health Medical Group

800 W Central Rd, Arlington Heights, IL 600052349

Phone: 8476181000

Endeavor Health Medical Group

2650 Ridge Ave, Evanston, IL 602011700

Secondary Practice Locations

4000 Wellness Dr

Midland, MI 486704414

Phone: 9898393000

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

40 listed
Dr. Lauren Abplanalp , DO

Internal Medicine - Pulmonary Disease

NPI 1346604642

Doctor of Osteopathic Medicine (D.O.)

Dr. Ahmed Abuhasna , DO

Internal Medicine

NPI 1841985025

Doctor of Osteopathic Medicine (D.O.)

Rusul Alasadi

Internal Medicine

NPI 1366737074
Michelle Arriola , PA-C

Physician Assistant

NPI 1740882562

Physician Assistant (Certified)

NPI 1962134593

Doctor of Medicine (M.D.)

NPI 1669104295

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

17 Historical Events
๐Ÿ“
Updated Practice Location April 29, 2022

Registered at 3134 N CLARK ST, CHICAGO, IL 606574414 (Tel: 3127664949)

๐Ÿ“
Updated Business Mailing Address April 29, 2022

Registered at 29373 NETWORK PL, CHICAGO, IL 606731293

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 29, 2022

Anesthesiology (license number reported to NPPES: IL 036150017)

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) April 14, 2020

Anesthesiology (license number reported to NPPES: WI 70252)

๐Ÿ“
Updated Practice Location February 28, 2020

Registered at 251 E HURON ST STE FEINBERG, CHICAGO, IL 606112908 (Tel: 3126950061)

๐Ÿ“
Updated Business Mailing Address February 28, 2020

Registered at 251 E HURON ST STE FEINBERG, CHICAGO, IL 606112908 (Tel: 3126950061)

โœ…
NPI Profile Active March 07, 2017

NPI status registered as active in NPPES database

๐Ÿ“
Updated Practice Location March 07, 2017

Registered at 2450 W CHARLESTON BLVD, LAS VEGAS, NV 891022179 (Tel: 7028778661)

๐Ÿ“
Updated Business Mailing Address March 07, 2017

Registered at PO BOX 35380, LAS VEGAS, NV 891335380 (Tel: 7025793270)

๐Ÿ‘ค
Provider Name / Credentials Updated March 07, 2017

Recorded as MICHAEL OLEYAR, D.O.

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 07, 2017

Anesthesiology (license number reported to NPPES: NY 276686)

โœ…
NPI Profile Active June 17, 2015

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) June 17, 2015

Registered at 121 DEKALB AVE, BROOKLYN, NY 112015425 (Tel: 7182508000)

๐Ÿ“
Business Mailing Address (Initial Record) June 17, 2015

Registered at 3998 FAIR RIDGE DR, STE 300, FAIRFAX, VA 220332907 (Tel: 7032959360)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) June 17, 2015

Recorded as MICHAEL OLEYAR, D.O.

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 17, 2015

Anesthesiology (license number reported to NPPES: NY 276686)

๐ŸŸข
Initial NPI Registration & Enumeration March 28, 2010

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1386969848
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 28, 2010
Last Update: March 24, 2025
Sole Proprietor: No

Other Anesthesiology Specialists in Chicago

All Anesthesiology Specialists in Chicago

Mailing Address

29373 Network Pl

Chicago, IL 606731293

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.