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

Gary M. Onady, MD, PHD

Individual provider Pediatrics Physician · NPI 1396792347

Gary M. Onady, MD, PHD is an Internal Medicine in Trenton, Ohio. Graduated from Wright State University Boonshoft School of Medicine in 1987, 39 years ago. Practices with University of Cincinnati Physicians Company LLC, a 1,476-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
39
Trained at
Wright State University Boonshoft School of Medicine
Licensed in
OH
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

715 W State St
Trenton, OH 45067-9220
Phone: (513) 988-6067
Fax: (513) 988-6070
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 35.057057 (OH)
Pediatrics Physician Taxonomy 208000000X · Licence 35.057057 (OH)

Record details

NPI number1396792347
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedMay 27, 2006
Last updated in NPPESSeptember 15, 2025
Certification dateSeptember 15, 2025
Mailing address3200 Burnet Ave, Cincinnati, OH 45229-3019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolWRIGHT STATE UNIVERSITY BOONSHOFT SCHOOL OF MEDICINE
Graduated 1987 (39 years in practice)
Group practice University Of Cincinnati Physicians Company Llc — 1476 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount