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

Michael J Hayes, MD

Individual provider Internal Medicine Physician · NPI 1174587943

Michael J Hayes, MD is an Internal Medicine in Marion, Ohio. Graduated from Michigan State University College of Human Medicine in 1980, 46 years ago. Practices with Marion Area Physicians LLC, a 181-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
46
Trained at
Michigan State University College of Human Medicine
Licensed in
OH
In the registry since
2006
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

980 S Prospect St Ste 1
Marion, OH 43302-6225
Phone: (740) 387-6400
Fax: (740) 387-6027
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 35.049227 (OH)

Record details

NPI number1174587943
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 17, 2006
Last updated in NPPESMarch 21, 2022
Certification dateMarch 21, 2022
Mailing addressPo Box 7527, Dublin, OH 43017-0727

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE
Graduated 1980 (46 years in practice)
Group practice Marion Area Physicians Llc — 181 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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