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

Mark O'Connor, MD

Individual provider Clinical Cardiac Electrophysiology Physician · NPI 1245232800

Mark O'Connor, MD is a Cardiovascular Disease (Cardiology) in Toledo, Ohio. Graduated from University of Michigan Medical School in 1986, 40 years ago. Practices with Toledo Cardiology Consultants Inc, a 16-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
40
Trained at
University of Michigan Medical School
Licensed in
OH
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2409 Cherry St Ste 100
Toledo, OH 43608-2625
Phone: (419) 251-3700
Fax: (419) 251-3835
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Cardiac Electrophysiology Physician (primary) Taxonomy 207RC0001X · Licence 350721050 (OH)

Record details

NPI number1245232800
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 12, 2005
Last updated in NPPESFebruary 6, 2009
Mailing address2409 Cherry St, Ste 100, Toledo, OH 43608-2625

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 1986 (40 years in practice)
Group practice Toledo Cardiology Consultants Inc — 16 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Toledo