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

Gregory S Johnson, DO

Individual provider Hospitalist Physician · NPI 1043485501

Gregory S Johnson, DO is an Internal Medicine in Massillon, Ohio. Graduated from Ohio University, College of Osteopathic Medicine in 2005, 21 years ago. Practices with University Hospitals Medical Group Inc, a 2,242-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
21
Trained at
Ohio University, College of Osteopathic Medicine
Licensed in
OH
In the registry since
2008
Specialties on file
2
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.

See every abbreviation used in this directory →

Practice location Address checks out

875 8th St NE
Massillon, OH 44646-8503
Phone: (330) 834-4798
Show map & directions

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

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 34.009304 (OH)
Hospitalist Physician Taxonomy 208M00000X · Licence 58-001893 (OH)

Record details

NPI number1043485501
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 25, 2008
Last updated in NPPESFebruary 9, 2018
Mailing address875 8th St Ne, Massillon, OH 44646-8503

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOHIO UNIVERSITY, COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2005 (21 years in practice)
Group practice University Hospitals Medical Group Inc — 2242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount