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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MICHAEL HENRY OSTER D.O.
NPI 1356333991
Emergency Medicine in Gurnee, IL

Active since August 19, 2005PECOS Enrolled
34555 N RED OAK LN, GURNEE, IL 60031(847) 244-0678(847) 244-0886 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Michael Henry Oster D.o. NPPES

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

MICHAEL HENRY OSTER D.O. (NPI 1356333991) is an individual emergency medicine provider in Gurnee, Illinois, licensed in Wisconsin (39679-021) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and is a graduate of Midwestern University, Chicago College Of Osteopathic Med (1978).

NPPES Registry Identity

NPI1356333991
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameMICHAEL HENRY OSTERCredential: D.O.
Location Address34555 N RED OAK LNGurnee, IL 60031-2563
Mailing Address34555 N Red Oak LnGurnee, IL 60031-2563 · (847) 244-0678 · Fax (847) 244-0886
Phone(847) 244-0678
Fax(847) 244-0886
Sole ProprietorNo
Medical School CMSMidwestern University, Chicago College Of Osteopathic MedGraduated 1978
Enumeration DateAugust 19, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1356333991 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in WI · 39679-021
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.
34555 N RED OAK LN, Gurnee, IL 60031
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Network Health.Insurance ›

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

Michael Henry Oster 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 ID8820045834
PECOS Enrollment IDI20120626000270
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60031 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
$93.02 typical visit price
range $59.81 – $181.38
Typical copayment $23.25 (range $14.95 – $45.34)
Most-billed visit code 99203
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
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.

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 Oster's NPI number?

The NPI number for Michael Oster is 1356333991. It was assigned to this individual provider in the NPPES registry on August 19, 2005.

Where is Michael Oster located?

Michael Oster practices at 34555 N Red Oak Ln, Gurnee, IL 60031. The listed phone number is (847) 244-0678.

What is Michael Oster's specialty?

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

Is Michael Oster enrolled in Medicare?

Yes. Michael Oster 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.

What insurance does Michael Oster accept?

Health plans from Medica and Network Health list Michael Oster as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Michael Oster was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.