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

Olanrewaju T Ishola, MD

Individual provider Internal Medicine Physician · NPI 1639500606

Olanrewaju T Ishola, MD practises Internal Medicine in Columbus, Ohio. Qualified in 2005, 21 years ago. Practices with Merced Hospitalist Medical Group Inc, a 39-clinician group and accepts Medicare assignment. Licensed in California and Ohio.

Years since qualifying
21
Licensed in
CA, OH
In the registry since
2013
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3555 Olentangy River Rd Ste 1080
Columbus, OH 43214-3984
Phone: (614) 268-8164
Fax: (614) 268-8406
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 35128398 (OH)
Internal Medicine Physician Taxonomy 207R00000X · Licence 35128398 (OH)
Hospitalist Physician Taxonomy 208M00000X · Licence A168856 (CA)

Record details

NPI number1639500606
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 2, 2013
Last updated in NPPESMay 22, 2025
Certification dateMay 22, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Merced Hospitalist Medical Group Inc — 39 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients164
Services billed 432 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Merced Hospitalist Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 39 clinicians in the practice; 12 are shown here.

Other providers in Columbus