Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark A. Easterday, MD

Individual provider Internal Medicine Physician · NPI 1891773263

Mark A. Easterday, MD is a Hospitalist in Columbus, Ohio. Graduated from Wright State University Boonshoft School of Medicine in 1995, 31 years ago. Practices with Mount Carmel Health System, a 84-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
31
Trained at
Wright State University Boonshoft School of 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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

420 N James Rd
Columbus, OH 43219-1834
Phone: (614) 257-5200
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

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 35-071525 (OH)

Record details

NPI number1891773263
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 5, 2006
Last updated in NPPESSeptember 24, 2026
Certification dateSeptember 24, 2026

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolWRIGHT STATE UNIVERSITY BOONSHOFT SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Mount Carmel Health System — 84 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients50
Services billed 86 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

  • Mount Carmel St Ann'S Hospital · Westerville, OH · listed as Mount Carmel
  • Mount Carmel East & West Hospital · Columbus, OH

Colleagues at Mount Carmel Health System

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 84 clinicians in the practice; 12 are shown here.

Other providers in Columbus