Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. John David Ewing, MD

Individual provider Emergency Medicine Physician · NPI 1497971717

Dr. John David Ewing, MD practises Emergency Medicine in Kettering, Ohio. Graduated from Ohio State University College of Medicine in 2006, 20 years ago. Practices with Emergency Medicine Specialists Inc, a 111-clinician group, works from 11 locations and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
20
Trained at
Ohio State University College of Medicine
Licensed in
OH
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3535 Southern Blvd Kettering Medical Ctr
Kettering, OH 45429
Phone: (937) 298-4331
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (10)

  • 3535 Pentagon Blvd, Beavercreek, OH 45431-1705 — (937) 702-4500
  • 1997 Miamisburg Centerville Rd, Centerville, OH 45459-3811 — (937) 401-6228
  • 405 W Grand Ave, Dayton, OH 45405-7538 — (937) 723-3211
  • 450 Washington Jackson Rd, Eaton, OH 45320-8699 — (937) 456-8376
  • 100 Kettering Way, Franklin, OH 45005-1155 — (937) 458-4700
  • 8701 Old Troy Pike, Huber Heights, OH 45424-1066 — (937) 558-3338
  • 4000 Miamisburg Centerville Rd, Miamisburg, OH 45342-7615 — (937) 384-8791
  • 6147 State Route 122, Middletown, OH 45005-5201 — (513) 261-3419
  • 600 W Main St, Troy, OH 45373-2928 — (937) 980-7010
  • 1141 N Monroe Dr, Xenia, OH 45385-1619 — (937) 352-2500

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 35-091469 (OH)

Record details

NPI number1497971717
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 17, 2007
Last updated in NPPESMay 7, 2020
Certification dateMay 7, 2020

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice Emergency Medicine Specialists Inc — 111 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 patients516
Services billed 756 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 Emergency Medicine Specialists Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 111 clinicians in the practice; 12 are shown here.

Other providers in Kettering