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

Dr. Gregory Ross Johnston, DO

Individual provider Surgery Physician · NPI 1982866109

Dr. Gregory Ross Johnston, DO is a General Surgery in Toledo, Ohio. Graduated from Michigan State University College of Osteopathic Medicine in 2008, 18 years ago. Practices with Mercy Medical Partners Northern Region Specialty Care LLC, a 87-clinician group and accepts Medicare assignment. Licensed in Michigan and Ohio.

Years since qualifying
18
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
MI, 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.

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Practice location Address checks out

3930 Sunforest CT 100
Toledo, OH 43623-4527
Phone: (419) 251-8760
Fax: (419) 251-8765
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 34.011316 (OH)
Surgery Physician Taxonomy 208600000X · Licence 5101017786 (MI)

Record details

NPI number1982866109
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedJune 29, 2008
Last updated in NPPESNovember 19, 2015
Mailing address2200 Jefferson Ave, 5th Fl, Toledo, OH 43604-7101

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2008 (18 years in practice)
Group practice Mercy Medical Partners Northern Region Specialty Care Llc — 87 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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