Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Michael J Oleyar, DO

Individual provider Anesthesiology Physician · NPI 1386969848

Dr. Michael J Oleyar, DO is an Anesthesiology in Chicago, Illinois. Graduated from Michigan State University College of Osteopathic Medicine in 2010, 16 years ago. Practices with Endeavor Health Medical Group, a 3,348-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois, New York and Wisconsin.

Years since qualifying
16
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
IL, NY, WI
In the registry since
2010
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

3134 N Clark St
Chicago, IL 60657-4414
Phone: (312) 766-4949
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4000 Wellness Dr, Midland, MI 48670-4414 — (989) 839-3000

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 70252 (WI)
Anesthesiology Physician Taxonomy 207L00000X · Licence 036150017 (IL)
Anesthesiology Physician Taxonomy 207L00000X · Licence 276686 (NY)

Record details

NPI number1386969848
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 28, 2010
Last updated in NPPESMarch 24, 2025
Certification dateMarch 24, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2010 (16 years in practice)
Group practice Endeavor Health Medical Group — 3348 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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