DR. MICHAEL THOMAS MARYNOWSKI D.O.
NPI 1396994539
Emergency Medicine in Oak Lawn, IL

Active since September 11, 2008PECOS EnrolledAccepts Medicare Assignment
4440 W 95TH ST, OAK LAWN, IL 60453(708) 684-5354(708) 684-1028 Get Directions Write a Review

NPPES record last updated: January 30, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Michael Thomas Marynowski D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MICHAEL THOMAS MARYNOWSKI D.O. (NPI 1396994539) is an individual emergency medicine provider in Oak Lawn, Illinois, licensed in Illinois (036-129670) and active in the NPI registry since September 2008. He is enrolled in Medicare PECOS, is affiliated with Advocate Christ Hospital & Medical Center, and maintains a secondary practice location in Pittsburgh.

NPPES Registry Identity

NPI1396994539
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. MICHAEL THOMAS MARYNOWSKICredential: D.O.
Location Address4440 W 95TH STOak Lawn, IL 60453-2600
Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900
Fax(708) 684-1028
Sole ProprietorNo
Medical School CMSMidwestern University, Chicago College Of Osteopathic MedGraduated 2004
Enumeration DateSeptember 11, 2008
Last NPPES UpdateJanuary 30, 2025
NPPES CertifiedJanuary 30, 2025
NPI 1396994539 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses Licensed in IL · 036-129670 Licensed in PA · OS015238
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
4440 W 95TH ST, Oak Lawn, IL 60453

Secondary Practice Location 1

Location 1320 E North AvePittsburgh, PA 15212-4756 · Phone (412) 359-4138 · Fax (412) 359-8874

Other Identifiers 1

Medicaid1024836330001PA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Michael Thomas Marynowski D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6204028574
PECOS Enrollment IDI20120904000080
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
125 services124 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
58 services57 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
28 services28 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
24 services24 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Advocate Christ Hospital & Medical Center

Acute Care Hospitals · Oak Lawn, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140208
Location4440 W 95th StreetOak Lawn, IL 60453 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60453 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Urology
4440 W 95TH ST
OAK LAWN, IL 60453
Internal Medicine
4440 W 95TH ST
OAK LAWN, IL 60453
Psychologist (Clinical)
4440 W 95TH ST
OAK LAWN, IL 60453
Occupational Therapist (Physical Rehabilitation)
4440 W 95TH ST
OAK LAWN, IL 60453
Speech-Language Pathologist
4440 W 95TH ST
OAK LAWN, IL 60453
Occupational Therapist
4440 W 95TH ST
OAK LAWN, IL 60453
Emergency Medicine
4440 W 95TH ST
OAK LAWN, IL 60453
Speech-Language Pathologist
4440 W 95TH ST
OAK LAWN, IL 60453

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Michael Marynowski's NPI number?

The NPI number for Michael Marynowski is 1396994539. It was assigned to this individual provider in the NPPES registry on September 11, 2008.

Where is Michael Marynowski located?

Michael Marynowski practices at 4440 W 95th St, Oak Lawn, IL 60453. The listed phone number is (708) 684-5354.

What is Michael Marynowski's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Michael Marynowski enrolled in Medicare?

Yes. Michael Marynowski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Michael Marynowski affiliated with any hospitals?

According to CMS data, Michael Marynowski is affiliated with Advocate Christ Hospital & Medical Center.

When was this NPI record last updated?

The NPPES record for Michael Marynowski was last updated on January 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.