Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Michael Sean Oconnor, DO, MPH

Individual provider Critical Care Medicine (Anesthesiology) Physician · NPI 1629049416

Dr. Michael Sean Oconnor, DO, MPH practises Anesthesiology in Cleveland, Ohio. Graduated from Midwestern University, Chicago College of Osteopathic Med in 1984, 42 years ago. Practices with Cleveland Clinic, a 6,935-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
42
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
OH
In the registry since
2006
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.
MPH — Master of Public Health
A graduate degree in population health.

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Practice location Address checks out

9500 Euclid Ave
Cleveland, OH 44195-0001 Not confirmed with CMS for 19 years — call before visiting
Phone: (800) 223-2273
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Anesthesiology) Physician (primary) Taxonomy 207LC0200X (OH)

Record details

NPI number1629049416
Entity typeIndividual (Type 1)
GenderMale
Credentials DO , MPH
Sole proprietorNo
NPI enumeratedJanuary 30, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 1984 (42 years in practice)
Group practice Cleveland Clinic — 6935 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients88
Services billed 192 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Cleveland Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 6935 clinicians in the practice; 12 are shown here.

Other providers in Cleveland